DR. DAVID JACOB ANDORSKY MD
Prescription History 1609061837
Internal Medicine - Hematology & Oncology in Boulder, CO

NPI Status: Active since September 11, 2007

Contact Information

4715 ARAPAHOE AVE
BOULDER, CO
ZIP 80303
Phone: (303) 385-2000
Fax: (303) 444-1839

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Prescription History for Informed Healthcare Decisions

When choosing a healthcare provider, especially one who prescribes medications, having access to their prescribing history can be invaluable. This page offers detailed insights into the prescriptions DR. DAVID JACOB ANDORSKY MD has written for Medicare beneficiaries in the past, empowering both current and prospective patients to make informed decisions about their healthcare.

Why This Information Matters

This Medicare Part D dataset provides transparency into the provider’s prescribing patterns, helping you understand the scope and nature of their pharmaceutical care. Here’s what you can learn:

  • Prescribing Trends: See which medications—both generic and brand-name—this provider has most frequently prescribed.
  • Specialization Insights: The types of drugs prescribed can give insight into the provider’s areas of focus or specialization, whether it’s managing chronic conditions, addressing acute illnesses, or providing preventive care.
  • Cost Awareness: Learn about the total drug costs associated with these prescriptions, which may help you anticipate your own costs and coverage needs.
  • Patient-Centered Decision Making: Understanding a provider’s prescribing practices helps you align their expertise with your health goals, ensuring the care you receive is consistent with your expectations.
Generic Name
Acyclovir
Specialty
Hematology-Oncology
Times Prescribed
60
Number of 30-Day Refills Prescribed
120.5
What is this prescription?
A GUANOSINE analog that acts as an antimetabolite. Viruses are especially susceptible. Used especially against herpes.
What is this prescription used for?
Acyclovir is used to treat infections caused by certain types of viruses. It treats cold sores around the mouth (caused by herpes simplex), shingles (caused by herpes zoster), and chickenpox. This medication is also used to treat outbreaks of genital herpes. In people with frequent outbreaks, acyclovir is used to help reduce the number of future episodes. Acyclovir is an antiviral drug. However, it is not a cure for these infections. The viruses that cause these infections continue to live in the body even between outbreaks. Acyclovir decreases the severity and length of these outbreaks. It helps the sores heal faster, keeps new sores from forming, and decreases pain/itching. This medication may also help reduce how long pain remains after the sores heal. In addition, in people with a weakened immune system, acyclovir can decrease the risk of the virus spreading to other parts of the body and causing serious infections.
Generic Name
Allopurinol
Specialty
Hematology-Oncology
Times Prescribed
22
Number of 30-Day Refills Prescribed
44
What is this prescription?
A XANTHINE OXIDASE inhibitor that decreases URIC ACID production. It also acts as an antimetabolite on some simpler organisms.
What is this prescription used for?
Allopurinol is used to treat gout and certain types of kidney stones. It is also used to prevent increased uric acid levels in patients receiving cancer chemotherapy. These patients can have increased uric acid levels due to release of uric acid from the dying cancer cells. Allopurinol works by reducing the amount of uric acid made by the body. Increased uric acid levels can cause gout and kidney problems.
Generic Name
Anastrozole
Specialty
Hematology-Oncology
Times Prescribed
73
Number of 30-Day Refills Prescribed
170.7
What is this prescription?
A nitrile and triazole derivative that acts as a selective nonsteroidal aromatase inhibitor. It is used in the treatment of ESTROGEN NUCLEAR RECEPTOR-positive breast cancer in postmenopausal women.
What is this prescription used for?
Anastrozole is used to treat breast cancer in women after menopause. Some breast cancers are made to grow faster by a natural hormone called estrogen. Anastrozole decreases the amount of estrogen the body makes and helps to slow or reverse the growth of these breast cancers.
Generic Name
Zanubrutinib
Specialty
Hematology-Oncology
Times Prescribed
20
Number of 30-Day Refills Prescribed
20
What is this prescription used for?
This medication is used to treat certain cancers (mantle cell lymphoma, marginal zone lymphoma, Waldenstrom's macroglobulinemia). Zanubrutinib belongs to a class of drugs known as kinase inhibitors. It works by slowing or stopping the growth of cancer cells.
Generic Name
Acalabrutinib
Specialty
Hematology-Oncology
Times Prescribed
32
Number of 30-Day Refills Prescribed
32
What is this prescription used for?
This medication is used to treat certain types of cancer (such as mantle cell lymphoma, small lymphocytic lymphoma - SLL, chronic lymphocytic leukemia - CLL). Acalabrutinib works by slowing or stopping the growth of cancer cells. It belongs to a class of drugs known as kinase inhibitors.
Generic Name
Dexamethasone
Specialty
Hematology-Oncology
Times Prescribed
20
Number of 30-Day Refills Prescribed
37.8
What is this prescription?
An anti-inflammatory 9-fluoro-glucocorticoid.
What is this prescription used for?
Dexamethasone is used to treat conditions such as arthritis, blood/hormone disorders, allergic reactions, skin diseases, eye problems, breathing problems, bowel disorders, cancer, and immune system disorders. It is also used as a test for an adrenal gland disorder (Cushing's syndrome). Dexamethasone belongs to a class of drugs known as corticosteroids. It decreases your immune system's response to various diseases to reduce symptoms such as swelling and allergic-type reactions.
Generic Name
Apixaban
Specialty
Hematology-Oncology
Times Prescribed
57
Number of 30-Day Refills Prescribed
100.7
What is this prescription used for?
Apixaban is used to prevent serious blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip/knee replacement surgery. With atrial fibrillation, part of the heart does not beat the way it should. This can lead to blood clots forming, which can travel to other parts of your body (such as the lungs or legs) or increase your risk for stroke. In the United States, apixaban is also approved to treat certain types of blood clots (deep vein thrombosis-DVT, pulmonary embolus-PE) and to prevent them from forming again. Apixaban is an anticoagulant that works by blocking certain clotting proteins in your blood.
Generic Name
Gabapentin
Specialty
Hematology-Oncology
Times Prescribed
24
Number of 30-Day Refills Prescribed
49.3
What is this prescription?
A cyclohexane-gamma-aminobutyric acid derivative that is used for the treatment of PARTIAL SEIZURES; NEURALGIA; and RESTLESS LEGS SYNDROME.
What is this prescription used for?
Gabapentin is used with other medications to prevent and control seizures. It is also used to relieve nerve pain following shingles (a painful rash due to herpes zoster infection) in adults. Gabapentin is known as an anticonvulsant or antiepileptic drug.
Generic Name
Hydrocortisone
Specialty
Hematology-Oncology
Times Prescribed
12
Number of 30-Day Refills Prescribed
34
What is this prescription?
The main glucocorticoid secreted by the ADRENAL CORTEX. Its synthetic counterpart is used, either as an injection or topically, in the treatment of inflammation, allergy, collagen diseases, asthma, adrenocortical deficiency, shock, and some neoplastic conditions.
What is this prescription used for?
Hydrocortisone is a man-made version of a natural substance (cortisol) made by the adrenal gland. This drug is used to treat low cortisol levels caused by diseases of the adrenal gland (such as Addison's disease, adrenocortical insufficiency). Hydrocortisone belongs to a class of drugs known as corticosteroids. Corticosteroids are needed in many ways for the body to function well. They are important for salt and water balance and keeping blood pressure normal.
Generic Name
Hydroxyurea
Specialty
Hematology-Oncology
Times Prescribed
26
Number of 30-Day Refills Prescribed
72.1
What is this prescription?
An antineoplastic agent that inhibits DNA synthesis through the inhibition of ribonucleoside diphosphate reductase.
What is this prescription used for?
This medication is used by people with sickle cell anemia to reduce the number of painful crises caused by the disease and to reduce the need for blood transfusions. Some brands are also used to treat certain types of cancer (such as chronic myelogenous leukemia, squamous cell carcinomas).
Generic Name
Palbociclib
Specialty
Hematology-Oncology
Times Prescribed
25
Number of 30-Day Refills Prescribed
25
What is this prescription used for?
Palbociclib is used to treat a certain type of breast cancer. It works by slowing or stopping the growth of cancer cells.
Generic Name
Imatinib Mesylate
Specialty
Hematology-Oncology
Times Prescribed
12
Number of 30-Day Refills Prescribed
12
What is this prescription?
A tyrosine kinase inhibitor and ANTINEOPLASTIC AGENT that inhibits the BCR-ABL kinase created by chromosome rearrangements in CHRONIC MYELOID LEUKEMIA and ACUTE LYMPHOBLASTIC LEUKEMIA, as well as PDG-derived tyrosine kinases that are overexpressed in gastrointestinal stromal tumors.
What is this prescription used for?
This medication is used to treat certain types of cancer (such as acute lymphoblastic leukemia, chronic myeloid leukemia, gastrointestinal stromal tumors, and myelodysplastic/myeloproliferative diseases). It works by slowing or stopping the growth of cancer cells. Imatinib may also be used to treat certain immune system disorders (such as aggressive systemic mastocytosis, hypereosinophilic syndrome).
Generic Name
Ibrutinib
Specialty
Hematology-Oncology
Times Prescribed
32
Number of 30-Day Refills Prescribed
32
What is this prescription used for?
This medication is used to treat certain cancers (such as mantle cell or marginal zone lymphoma, chronic lymphocytic leukemia/small lymphocytic lymphoma, Waldenstrom's macroglobulinemia). Ibrutinib belongs to a class of drugs known as kinase inhibitors. It works by slowing or stopping the growth of cancer cells. Ibrutinib is also used to treat a certain problem that may occur after a stem cell transplant (chronic graft versus host disease). It works by weakening your body's defense system (immune system).
Generic Name
Ruxolitinib Phosphate
Specialty
Hematology-Oncology
Times Prescribed
13
Number of 30-Day Refills Prescribed
13
What is this prescription used for?
This medication is used to treat certain bone marrow disorders (myelofibrosis, polycythemia vera). It works by blocking your body from producing substances called growth factors. Growth factors cause cells to grow and divide, and cause the blood cell and spleen problems found in these disorders. Ruxolitinib belongs to a class of drugs known as kinase inhibitors. Though not a cure for these disorders, ruxolitinib may help with some of the symptoms, including abdominal discomfort, pain under left ribs, early feelings of fullness from meals, night sweats, itching, and bone/muscle pain. Ruxolitinib is also used to treat a certain problem that may occur after certain stem cell or bone marrow transplants (graft versus host disease). It works by weakening your body's defense system (immune system).
Generic Name
Letrozole
Specialty
Hematology-Oncology
Times Prescribed
27
Number of 30-Day Refills Prescribed
59.7
What is this prescription?
A triazole and benzonitrile derivative that is a selective non-steroidal aromatase inhibitor, similar to ANASTROZOLE. It is used in the treatment of metastatic or locally advanced breast cancer in postmenopausal women.
What is this prescription used for?
This medication is used to treat certain types of breast cancer (such as hormone-receptor-positive breast cancer) in women after menopause. Letrozole is also used to help prevent the cancer from returning. Some breast cancers are made to grow faster by a natural hormone called estrogen. Letrozole decreases the amount of estrogen the body makes and helps to slow or reverse the growth of these breast cancers.
Generic Name
Levothyroxine Sodium
Specialty
Hematology-Oncology
Times Prescribed
14
Number of 30-Day Refills Prescribed
31
What is this prescription?
The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.
What is this prescription used for?
Levothyroxine is used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery. Having enough thyroid hormone is important for maintaining normal mental and physical activity. In children, having enough thyroid hormone is important for normal mental and physical development. This medication is also used to treat other types of thyroid disorders (such as thyroid cancer). This medication should not be used to treat infertility unless it is caused by low thyroid hormone levels.
Generic Name
Lorazepam
Specialty
Hematology-Oncology
Times Prescribed
25
Number of 30-Day Refills Prescribed
25
What is this prescription?
A benzodiazepine used as an anti-anxiety agent with few side effects. It also has hypnotic, anticonvulsant, and considerable sedative properties and has been proposed as a preanesthetic agent.
What is this prescription used for?
This medication is used to treat serious seizures that do not stop (status epilepticus). It is also used before surgeries or procedures to cause drowsiness, decrease anxiety, and cause forgetfulness about the procedure or surgery. Lorazepam belongs to a class of medications called benzodiazepines, which produce a calming effect on the brain and nerves (central nervous system). It is thought to work by increasing the effect of a certain natural chemical (GABA) in the brain.
Generic Name
Omeprazole
Specialty
Hematology-Oncology
Times Prescribed
15
Number of 30-Day Refills Prescribed
38.7
What is this prescription?
A 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits an H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.
What is this prescription used for?
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers). It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as heartburn, difficulty swallowing, and cough. This medication helps heal acid damage to the stomach and esophagus, helps prevent ulcers, and may help prevent cancer of the esophagus. Omeprazole belongs to a class of drugs known as proton pump inhibitors (PPIs). If you are self-treating with this medication, over-the-counter omeprazole products are used to treat frequent heartburn (occurring 2 or more days a week). Since it may take 1 to 4 days to have full effect, these products do not relieve heartburn right away. For over-the-counter products, carefully read the package instructions to make sure the product is right for you. Check the ingredients on the label even if you have used the product before. The manufacturer may have changed the ingredients. Also, products with similar brand names may contain different ingredients meant for different purposes. Taking the wrong product could harm you.
Generic Name
Ondansetron
Specialty
Hematology-Oncology
Times Prescribed
15
Number of 30-Day Refills Prescribed
15.3
What is this prescription?
A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties.
What is this prescription used for?
This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy. It is also used to prevent and treat nausea and vomiting after surgery. Ondansetron works by blocking one of the body's natural substances (serotonin) that causes vomiting.
Generic Name
Oxycodone Hcl
Specialty
Hematology-Oncology
Times Prescribed
25
Number of 30-Day Refills Prescribed
25
What is this prescription?
A semisynthetic derivative of CODEINE.
What is this prescription used for?
This medication is used to help relieve moderate to severe pain. Oxycodone belongs to a class of drugs known as opioid analgesics. It works in the brain to change how your body feels and responds to pain.
Generic Name
Oxycodone Hcl
Specialty
Hematology-Oncology
Times Prescribed
12
Number of 30-Day Refills Prescribed
12
What is this prescription?
A semisynthetic derivative of CODEINE.
What is this prescription used for?
This medication is used to help relieve severe ongoing pain (such as due to cancer). Oxycodone belongs to a class of drugs known as opioid analgesics. It works in the brain to change how your body feels and responds to pain. The higher strengths of this drug (more than 40 milligrams per tablet) should be used only if you have been regularly taking moderate to large amounts of an opioid pain medication. These strengths may cause overdose (even death) if taken by a person who has not been regularly taking opioids. Do not use the extended-release form of oxycodone to relieve pain that is mild or that will go away in a few days. This medication is not for occasional (as needed) use.
Generic Name
Prednisone
Specialty
Hematology-Oncology
Times Prescribed
27
Number of 30-Day Refills Prescribed
39
What is this prescription?
A synthetic anti-inflammatory glucocorticoid derived from CORTISONE. It is biologically inert and converted to PREDNISOLONE in the liver.
What is this prescription used for?
Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders. Prednisone belongs to a class of drugs known as corticosteroids. It decreases your immune system's response to various diseases to reduce symptoms such as swelling and allergic-type reactions.
Generic Name
Lenalidomide
Specialty
Hematology-Oncology
Times Prescribed
52
Number of 30-Day Refills Prescribed
52
What is this prescription?
A phthalimide and piperidone derivative that has immunomodulatory and antiangiogenic properties. It is used for the treatment of transfusion-dependent anemia in MYELODYSPLASTIC SYNDROMES, and for the treatment of MULTIPLE MYELOMA, and relapsed or refractory MANTLE CELL LYMPHOMA.
What is this prescription used for?
Lenalidomide is used to treat various types of cancers. It works by slowing or stopping the growth of cancer cells. It is also used to treat anemia in patients with certain blood/bone marrow disorders (myelodysplastic syndromes-MDS). Lenalidomide may lessen the need for blood transfusions. Lenalidomide is not recommended for the treatment of a certain type of cancer (chronic lymphocytic leukemia) because of the increased risk of serious heart-related side effects and death. If you have this type of cancer, talk to your doctor about the risks of using this medication.
Generic Name
Tamoxifen Citrate
Specialty
Hematology-Oncology
Times Prescribed
23
Number of 30-Day Refills Prescribed
70
What is this prescription?
One of the SELECTIVE ESTROGEN RECEPTOR MODULATORS with tissue-specific activities. Tamoxifen acts as an anti-estrogen (inhibiting agent) in the mammary tissue, but as an estrogen (stimulating agent) in cholesterol metabolism, bone density, and cell proliferation in the ENDOMETRIUM.
What is this prescription used for?
Tamoxifen is used to treat breast cancer. It is also used to reduce the chances of breast cancer in high-risk patients. This medication can block the growth of breast cancer. It works by interfering with the effects of estrogen in the breast tissue.
Generic Name
Valacyclovir Hcl
Specialty
Hematology-Oncology
Times Prescribed
11
Number of 30-Day Refills Prescribed
29
What is this prescription?
A prodrug of acyclovir that is used in the treatment of HERPES ZOSTER and HERPES SIMPLEX VIRUS INFECTION of the skin and mucous membranes, including GENITAL HERPES.
What is this prescription used for?
Valacyclovir is used to treat infections caused by certain types of viruses. In children, it is used to treat cold sores around the mouth (caused by herpes simplex) and chickenpox (caused by varicella zoster). In adults, it is used to treat shingles (caused by herpes zoster) and cold sores around the mouth. Valacyclovir is also used to treat outbreaks of genital herpes. In people with frequent outbreaks, this medication is used to reduce the number of future episodes. Valacyclovir is an antiviral drug. It stops the growth of certain viruses. However, it is not a cure for these infections. The viruses that cause these infections continue to live in the body even between outbreaks. Valacyclovir decreases the severity and length of these outbreaks. It helps the sores heal faster, keeps new sores from forming, and decreases pain/itching. This medication may also help reduce how long pain remains after the sores heal.
Generic Name
Venetoclax
Specialty
Hematology-Oncology
Times Prescribed
27
Number of 30-Day Refills Prescribed
27
What is this prescription used for?
This medication is used to treat certain types of cancer (chronic lymphocytic leukemia-CLL, small lymphocytic lymphoma-SLL, acute myeloid leukemia-AML). Venetoclax is a drug that works by helping to slow or stop the growth of cancer cells.
Generic Name
Rivaroxaban
Specialty
Hematology-Oncology
Times Prescribed
36
Number of 30-Day Refills Prescribed
93
What is this prescription?
A morpholine and thiophene derivative that functions as a FACTOR XA INHIBITOR and is used in the treatment and prevention of DEEP-VEIN THROMBOSIS and PULMONARY EMBOLISM. It is also used for the prevention of STROKE and systemic embolization in patients with non-valvular ATRIAL FIBRILLATION, and for the prevention of atherothrombotic events in patients after an ACUTE CORONARY SYNDROME.
What is this prescription used for?
Rivaroxaban is used to prevent blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip or knee replacement surgery. It is also used to prevent blood clots from forming in high-risk patients with limited mobility during their hospital stay and after discharge. In addition, rivaroxaban is used to treat blood clots (such as in deep vein thrombosis-DVT or pulmonary embolus-PE) and to prevent the blood clots from forming again. Rivaroxaban may be used in children to prevent blood clots from forming after a certain heart surgery (Fontan procedure). Rivaroxaban is an anticoagulant that works by blocking certain clotting proteins in your blood.
Generic Name
Zolpidem Tartrate
Specialty
Hematology-Oncology
Times Prescribed
18
Number of 30-Day Refills Prescribed
24
What is this prescription?
An imidazopyridine derivative and short-acting GABA-A receptor agonist that is used for the treatment of INSOMNIA.
What is this prescription used for?
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults. If you have trouble falling asleep, it helps you fall asleep faster, so you can get a better night's rest. Zolpidem belongs to a class of drugs called sedative-hypnotics. It acts on your brain to produce a calming effect.

This dataset provides information about prescriptions written for Medicare beneficiaries in the year 2022. It does not include prescriptions for patients with private insurance, Medicaid, or other coverage types. However, this information remains valuable for all patients, as it may reflect the provider's overall prescribing preferences and approach to pharmaceutical care. This can help you make better-informed decisions when considering or continuing care with this provider.