ANDREW T CHAN M.D.
NPI 1982600144
Internal Medicine - Gastroenterology in Boston, MA
NPI Status: Active since June 22, 2005
Contact Information
55 FRUIT ST
BOSTON, MA
ZIP 02114
Phone: (617) 726-3212
Fax: (617) 724-6832
- Individual
- Male
- Years of Experience 29
- Internal Medicine
- Gastroenterology
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About ANDREW CHAN
This page provides the complete NPI Profile along with additional information for Andrew Chan, an internist established in Boston, Massachusetts with a medical specialization in Internal Medicine, focusing in gastroenterology and more than 29 years of experience. He graduated from Harvard Medical School in 1997. The healthcare provider is registered in the NPI registry with number 1982600144 assigned on June 2005. The practitioner's primary taxonomy code is 207RG0100X with license number 210410 (MA). The provider is registered as an individual and his NPI record was last updated 15 years ago.
- NPI
- 1982600144
- Provider Name
- ANDREW T CHAN M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 55 FRUIT ST BOSTON, MA 02114
- Location Phone
- (617) 726-3212
- Location Fax
- (617) 724-6832
- Mailing Address
- 55 FRUIT ST GRJ-722 BOSTON, MA 02114
- Mailing Phone
- (617) 726-3212
- Mailing Fax
- (617) 724-6832
- Medical School Name
- HARVARD MEDICAL SCHOOL
- Graduation Year
- 1997
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-22-2005
- Last Update Date
- 08-04-2010
- Code Navigator
An internist like Andrew Chan is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine Gastroenterology
- Taxonomy Code
- 207RG0100X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 210410
- License State
- MA
- Taxonomy Description
- An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Anthem Bronze Preferred Blue PPO 5000/10%/8000 w/HSA - PPO
- Anthem Bronze Preferred Blue PPO 5000/20%/8000 w/HSA - PPO
- Anthem Bronze Preferred Blue PPO 6500/30%/9200 Value - PPO
- Anthem Bronze Preferred Blue PPO 7000/50%/8000 w/HSA - PPO
- Anthem Bronze Preferred Blue PPO 8500/50%/9200 - PPO
- Anthem Gold Preferred Blue PPO 1000/20%/7500 - PPO
- Anthem Gold Preferred Blue PPO 2000/0%/6500 RxD - PPO
- Anthem Gold Preferred Blue PPO 2000/10%/4600 w/HSA - PPO
- Anthem Gold Preferred Blue PPO 2000/10%/7500 - PPO
- Anthem Gold Preferred Blue PPO 2000/20%/4600 w/HSA - PPO
- Anthem Bronze Pathway X Enhanced 6000/35% HSA - HMO
- Anthem Bronze Pathway X Enhanced 6500/40% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Bronze Pathway X Enhanced 7500/50% ($0 Virtual PCP + $0 Select Drugs) Standard - HMO
- Anthem Catastrophic Pathway X Enhanced 9200/0% - HMO
- Anthem Gold Pathway X Enhanced 1200/20% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Gold Pathway X Enhanced 1500/25% ($0 Virtual PCP + $0 Select Drugs) Standard - HMO
- Anthem Gold Pathway X Enhanced 700/40% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Heart Healthy Bronze Pathway X Enhanced 6000/30% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Heart Healthy Silver Pathway X Enhanced 4000/0% ($0 Virtual PCP + $0 Select Drugs) - HMO
- Anthem Silver Pathway X Enhanced 4500/20% HSA - HMO
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 30205076 | OTHER (01) | NH | NH MEDICAID |
| 994677 | OTHER (01) | MA | NETWORK HEALTH |
| H40331 | MEDICARE UPIN (02) | MA | |
| A32564 | MEDICARE ID-TYPE UNSPECIFIED (04) | MA | |
| H40331 | OTHER (01) | NH | ANTHEM BLUE CROSS |
| 210410 | OTHER (01) | MA | TUFTS HEALTH PLAN |
| 0024168 | OTHER (01) | MA | NEIGHBORHOOD HEALTH PLAN |
| 6831017 | OTHER (01) | MA | HEALTHSOURCE |
| 6584416 | OTHER (01) | CIGNA | |
| AA13929 | OTHER (01) | MA | HARVARD PILGRIM HEALTHCAR |
| 0134031 | MEDICAID (05) | MA | |
| J23432 | OTHER (01) | MA | BLUE CROSS BLUE SHIELD |
Medicare Participation & PECOS Enrollment Status
Andrew Chan is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
Andrew Chan is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
PECOS PAC ID: 4688643547
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20040928000279
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope
Colonoscopy
Colorectal cancer screening; colonoscopy on individual at high risk
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope
Diagnostic exam of large bowel using a flexible endoscope
Follow-up hospital inpatient care per day, typically 15 minutes
Initial hospital inpatient care per day, typically 30 minutes
Initial hospital inpatient care per day, typically 50 minutes
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito
Removal of polyps or growths of large bowel using an endoscope with mechanical snare
Upper gastrointestinal (GI) endoscopy for acid reflux
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
This service was performed 20 times for 20 patientsA colonoscopy is a medical procedure that allows your doctor to examine your colon (the large intestine). It utilizes a thin, flexible tube with a tiny camera on the end, which is inserted through the rectum. This procedure can help identify issues such as polyps, inflammation, or early signs of cancer. It's usually recommended for people over 50 or those with specific risk factors.
This service was performed for 50 patientsColorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.
This service was performed 13 times for 13 patientsThis procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.
This service was performed 14 times for 14 patientsThis procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.
This service was performed 13 times for 13 patientsFollow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
This service was performed 19 times for 16 patientsInitial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
This service was performed 17 times for 17 patientsInitial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
This service was performed 34 times for 34 patientsModerate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.
This service was performed 59 times for 59 patientsThis procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
This service was performed 24 times for 24 patientsAn upper GI endoscopy is a procedure to examine your esophagus and stomach using a thin, flexible tube called an endoscope. It helps diagnose conditions like acid reflux by identifying any inflammation or damage. It's generally safe, performed under sedation, and takes about 15-30 minutes.
This service was performed for 47 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $36.02 for a new patient copayment and $27.79 for an established patient copayment.
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 02114 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $144.11
- Minimum New Patient Price $63.72
- Maximum New Patient Price $189.86
- Average New Patient Copayment $36.02
- Minimum New Patient Copayment $15.93
- Maximum New Patient Copayment $47.46
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $111.18
- Minimum Established Patient Price $21.07
- Maximum Established Patient Price $155.29
- Average Established Patient Copayment $27.79
- Minimum Established Patient Copayment $5.26
- Maximum Established Patient Copayment $38.82
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
Find Provider Hospital Affiliations - Privileges
Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.
Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Andrew Chan is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| MASSACHUSETTS GENERAL HOSPITAL | 55 FRUIT STREET BOSTON, MA 02114 | (617) 724-9725 | Acute Care Hospitals |
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 9 | 8 | 2 | 6 | 0 | 0 | 1 | 4 | 4 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 9 | 16 | 2 | 12 | 0 | 0 | 1 | 8 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 9 + 1 + 6 + 2 + 1 + 2 + 0 + 0 + 1 + 8 + 24 = 56 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 60 - 56 = 4 | 4 | ||||||||
The NPI number 1982600144 is valid because the calculated check digit 4 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1538166889 | KALOYAN S TANEV MD Individual | Psychiatry & Neurology (Psychiatry) | 55 FRUIT ST WARREN 1220 BOSTON, MA 02114 (617) 726-7511 |
| 1124028238 | DR. DEBRA F WEINSTEIN MD Individual | Internal Medicine (Gastroenterology) | 55 FRUIT ST BOSTON, MA 02114 (617) 724-6007 |
| 1225023658 | BRADEN KUO M.D. Individual | Internal Medicine (Gastroenterology) | 55 FRUIT ST BLAKE 4, GI UNIT. MGH BOSTON, MA 02114 (617) 726-2132 |
| 1881680767 | DR. NANCY J GAGLIANO MD Individual | Internal Medicine | 55 FRUIT ST 4710B BOSTON, MA 02114 (617) 724-6700 |
| 1285620161 | DR. DAVID F TORCHIANA MD Individual | Thoracic Surgery (Cardiothoracic Vascular Surgery) | 55 FRUIT ST BUL 119 BOSTON, MA 02114 (617) 724-9644 |
| 1205823176 | DAVID MICHAEL SHAHIAN MD Individual | Thoracic Surgery (Cardiothoracic Vascular Surgery) | 55 FRUIT ST MGH, BULFINCH 2 BOSTON, MA 02114 (617) 643-4335 |
| 1396734570 | DR. JAY JEFFREY SCHNITZER M.D., PH.D. Individual | Surgery | 55 FRUIT ST PEDIATRIC SURGERY, WRN 11 BOSTON, MA 02114 (617) 724-1602 |
| 1538158696 | DR. THEODORE JOSEPH ONGARO MD Individual | Urology | 55 FRUIT ST GRB 1102 BOSTON, MA 02114 (617) 726-3012 |
| 1922098730 | DR. WEI CHAO MD PHD Individual | Anesthesiology | 55 FRUIT ST CLN 3 BOSTON, MA 02114 (617) 724-3267 |
| 1194715904 | DR. MAURICE ALBRIGHT MD Individual | Orthopaedic Surgery | 55 FRUIT ST YAW 3E ORTHOPAEDIC ASSOCIATES BOSTON, MA 02114 (617) 726-8523 |
| 1841280674 | DR. GREGORY YVES LAUWERS MD Individual | Pathology (Anatomic Pathology) | 55 FRUIT ST PATHOLOGY ASSOCIATES WRN 2 BOSTON, MA 02114 (617) 726-2931 |
| 1609866516 | DR. KENT BALANIS LEWANDROWSKI MD Individual | Pathology (Anatomic Pathology & Clinical Pathology) | 55 FRUIT ST GRB 5 PATHOLOGY ASSOCIATES BOSTON, MA 02114 (617) 726-2275 |
| 1114917986 | DR. JEFFREY A GELFAND MD Individual | Allergy & Immunology | 55 FRUIT ST S50-801 INFECTIOUS DISEASE ASSOCIATES BOSTON, MA 02114 (617) 726-1796 |
| 1750371563 | DR. KATHLEEN BRIGID TRAINOR PSYD Individual | Psychologist | 55 FRUIT ST YAW 6A MASSACHUSSETTS GENERAL HOSPITAL BOSTON, MA 02114 (617) 724-6300 |
| 1073503884 | DR. BOYD TAYLOR THOMPSON MD Individual | Internal Medicine (Pulmonary Disease) | 55 FRUIT ST BOSTON, MA 02114 (617) 724-3705 |
| 1992795512 | DR. RAJESH TIM GANDHI MD Individual | Internal Medicine (Infectious Disease) | 55 FRUIT ST FND 8 INFECTIOUS DISEASE ASSOCIATES BOSTON, MA 02114 (617) 726-8403 |
| 1821088451 | DR. SHIHAB AHMED MBBS Individual | Anesthesiology (Pain Medicine) | 55 FRUIT ST CLN 309 ANESTHESIA ASSOCIATES BOSTON, MA 02114 (617) 726-3030 |
| 1528058153 | DR. MARIE B DEMAY MD Individual | Internal Medicine (Endocrinology, Diabetes & Metabolism) | 55 FRUIT ST WEL 5 BOSTON, MA 02114 (617) 726-8720 |
| 1225028863 | DR. MICHELE TRUCKSIS MD PHD Individual | Internal Medicine | 55 FRUIT ST INFECTIOUS DISEASE ASSOCIATES GRJ 504 BOSTON, MA 02114 (617) 726-3812 |
| 1588654131 | DR. GEORGE PAPAKOSTAS MD Individual | Psychiatry & Neurology (Psychiatry) | 55 FRUIT ST S50 4 MASSACHUSETTS GENERAL HOSPITAL BOSTON, MA 02114 (617) 726-6697 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1982600144, enumerated in the NPI registry as an "individual" on June 22, 2005
The provider is located at 55 Fruit St Boston, Ma 02114 and the phone number is (617) 726-3212
The provider's speciality is Internal Medicine with taxonomy code 207RG0100X with a focus in Gastroenterology
The provider has more than 29 years of experience. He graduated from Harvard Medical School in 1997.
The provider might be accepting Accepts: Anthem Blue Cross and Blue Sheld, Anthem Blue. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.
Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
Medicare beneficiaries should expect a typical cost of $144.11 with an average copayment of $36.02 for new patient appointments. Established patients should expect a typical charge of $111.18 and an average copayment of 27.79. Please review your insurance plan or contact the provider directly to determine your specific costs.
The most common procedures or services performed by this practitioner are: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, Colonoscopy, Colorectal cancer screening; colonoscopy on individual at high risk, Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope, Diagnostic exam of large bowel using a flexible endoscope, Follow-up hospital inpatient care per day, typically 15 minutes, Initial hospital inpatient care per day, typically 30 minutes, Initial hospital inpatient care per day, typically 50 minutes, Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito, Removal of polyps or growths of large bowel using an endoscope with mechanical snare and Upper gastrointestinal (GI) endoscopy for acid reflux.
The practitioner is affiliated to the following hospital(s): MASSACHUSETTS GENERAL HOSPITAL. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.
This NPI record was last updated on June 22, 2005. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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