DR. MARK CWERN MD
NPI 1780661769
Internal Medicine - Gastroenterology in Nyc, NY
NPI Status: Active since December 29, 2005
Contact Information
305 E 55TH ST
NYC, NY
ZIP 10022
Phone: (212) 751-9714
Fax: (212) 832-1821
- Individual
- Male
- Internal Medicine
- Gastroenterology
- PECOS Enrolled
About MARK CWERN
This page provides the complete NPI Profile along with additional information for Mark Cwern, an internist established in Nyc, New York with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1780661769 assigned on December 2005. The practitioner's primary taxonomy code is 207RG0100X with license number 125031 (NY). The provider is registered as an individual and his NPI record was last updated 18 years ago.
- NPI
- 1780661769
- Provider Name
- DR. MARK CWERN MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 305 E 55TH ST NYC, NY 10022
- Location Phone
- (212) 751-9714
- Location Fax
- (212) 832-1821
- Mailing Address
- 305 E 55TH ST NYC, NY 10022
- Mailing Phone
- (212) 751-9714
- Mailing Fax
- (212) 832-1821
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 12-29-2005
- Last Update Date
- 07-08-2007
- Code Navigator
An internist like Mark Cwern 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.
- 125031
- License State
- NY
- 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:
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 |
---|---|---|---|
A97132 | MEDICARE UPIN (02) | ||
03A931 | MEDICARE ID-TYPE UNSPECIFIED (04) | ||
00741662 | MEDICAID (05) | NY |
Medicare Participation & PECOS Enrollment Status
Mark Cwern 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
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
Biopsy of large bowel using a flexible endoscope
Colorectal cancer screening; colonoscopy on individual at high risk
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk
Diagnostic exam of large bowel using a flexible endoscope
Established patient office or other outpatient visit, 20-29 minutes
New patient office or other outpatient visit, 30-44 minutes
Removal of polyps or growths of large bowel using an endoscope with mechanical snare
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 36 times for 36 patientsA biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
This service was performed 47 times for 47 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 45 times for 45 patientsColorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.
This service was performed 47 times for 47 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 27 times for 27 patientsThis is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
This service was performed 22 times for 19 patientsThis service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
This service was performed 27 times for 27 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 32 times for 31 patientsPhysician Visit Costs
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 10022 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $150.24
- Minimum New Patient Price $65.69
- Maximum New Patient Price $198.19
- Average New Patient Copayment $37.56
- Minimum New Patient Copayment $16.42
- Maximum New Patient Copayment $49.54
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $114.88
- Minimum Established Patient Price $21.2
- Maximum Established Patient Price $160.66
- Average Established Patient Copayment $28.72
- Minimum Established Patient Copayment $5.3
- Maximum Established Patient Copayment $40.16
* 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.
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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 | 7 | 8 | 0 | 6 | 6 | 1 | 7 | 6 | 9 |
Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
2 | 7 | 16 | 0 | 12 | 6 | 2 | 7 | 12 | |
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
2 + 7 + 1 + 6 + 0 + 1 + 2 + 6 + 2 + 7 + 1 + 2 + 24 = 61 | |||||||||
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
70 - 61 = 9 | 9 |
The NPI number 1780661769 is valid because the calculated check digit 9 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 17 providers are registered at the same or nearby location.
NPI | Name / Type | Taxonomy | Address |
---|---|---|---|
1326041310 | DR. MICHAEL STUART KLEIN D.D.S. Individual | Dentist (General Practice) | 305 E 55TH ST APT 101 NEW YORK, NY 10022 (212) 752-2222 |
1679540124 | DR. THEODORE MARK AARONSON DDS Individual | Dentist (General Practice) | 305 E 55TH ST SUITE 204 NEW YORK, NY 10022 (212) 688-7722 |
1902849730 | DR. MARTIN G STEIN M.D. Individual | Internal Medicine (Cardiovascular Disease) | 305 E 55TH ST SUITE 107 NEW YORK, NY 10022 (212) 249-2704 |
1245315142 | JONATHAN M SIMON Individual | Acupuncturist | 305 E 55TH ST STE 106 NEW YORK, NY 10022 (212) 224-0087 |
1134271075 | DR. FAINA CHACHKO MD Individual | Psychiatry & Neurology (Psychiatry) | 305 E 55TH ST SUITE 203 NEW YORK, NY 10022 (212) 759-5550 |
1225241987 | DR. MARC BOCHNER D.C. Individual | Chiropractor (Sports Physician) | 305 E 55TH ST SUITE 108 NEW YORK, NY 10022 (212) 688-5770 |
1649462748 | DR. GRACE E LEE DDS Individual | Dentist (General Practice) | 305 E 55TH ST SUITE 109 NEW YORK, NY 10022 (212) 688-9528 |
1801081831 | HERSCHEL KOTKES MD PC Organization | Pain Medicine (Interventional Pain Medicine) | 305 E 55TH ST SUITE 206 NEW YORK, NY 10022 (212) 319-1339 |
1710124441 | NYC POINTS ACUPUNCTURE PC Organization | Acupuncturist | 305 E 55TH ST STE 106 NEW YORK, NY 10022 (212) 224-0087 |
1336466010 | DR. JACK MITCHELL D.D.S Individual | Dentist (Pediatric Dentistry) | 305 E 55TH ST SUITE 201 NEW YORK, NY 10022 (212) 755-3355 |
1083929913 | NEVILLE W, CARMICAL MD PC Organization | Otolaryngology | 305 E 55TH ST SUITE 105 NEW YORK, NY 10022 (212) 755-2575 |
1922388933 | NYC MEDICAL, P.C. Organization | Anesthesiology | 305 E 55TH ST NEW YORK, NY 10022 (347) 417-9081 |
1548509524 | CM MEDICAL PC Organization | Anesthesiology | 305 E 55TH ST NEW YORK, NY 10022 (347) 417-9080 |
1851634737 | ELIZABETH C MUSS MD PLLC Organization | Internal Medicine (Cardiovascular Disease) | 305 E 55TH ST SUITE 107 NEW YORK, NY 10022 (212) 753-9280 |
1114465408 | DR BRYAN M WOLYNSKI OD PC Organization | Optometrist | 305 E 55TH ST SUITE 105 NEW YORK, NY 10022 (212) 375-1001 |
1295896421 | DR. RANDA M GARRANA MD Individual | Ophthalmology | 305 E 55TH ST APT 105 NEW YORK, NY 10022 (212) 725-7442 |
1033158977 | MARTIN G. STEIN M.D., P.C. Organization | Internal Medicine (Cardiovascular Disease) | 305 E 55TH ST SUITE 107 NEW YORK, NY 10022 (212) 249-2704 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1780661769, enumerated in the NPI registry as an "individual" on December 29, 2005
The provider is located at 305 E 55th St Nyc, Ny 10022 and the phone number is (212) 751-9714
The provider's speciality is Internal Medicine with taxonomy code 207RG0100X with a focus in Gastroenterology
The provider might be accepting Accepts: Medicare and Medicaid. 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 $150.24 with an average copayment of $37.56 for new patient appointments. Established patients should expect a typical charge of $114.88 and an average copayment of 28.72. 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, Biopsy of large bowel using a flexible endoscope, Colorectal cancer screening; colonoscopy on individual at high risk, Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk, Diagnostic exam of large bowel using a flexible endoscope, Established patient office or other outpatient visit, 20-29 minutes, New patient office or other outpatient visit, 30-44 minutes and Removal of polyps or growths of large bowel using an endoscope with mechanical snare.
This NPI record was last updated on December 29, 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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