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Internal Medicine - Gastroenterology Specialists in Frederick, MD

Browse 24 Internal Medicine - Gastroenterology providers listed in NPPES with a practice address in Frederick, Maryland.

24 Healthcare Providers

How Frederick compares with the U.S.

Frederick has 29 clinicians in Internal Medicine - Gastroenterology per 100,000 residents, 4.7 times the U.S. rate of 6.2.

That is 24 active clinicians in Internal Medicine - Gastroenterology with a practice address in Frederick, for a population of 83,395.

The Maryland rate is 8.1 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

100% of clinicians in Internal Medicine - Gastroenterology in Frederick listed in the CMS Medicare file (19 of 19) accept Medicare assignment. That is higher than the Maryland share of 88%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

21% of clinicians in Internal Medicine - Gastroenterology in Frederick listed in the CMS Medicare file (4 of 19) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Maryland share of 59%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine - Gastroenterology Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine - Gastroenterology practitioners in Frederick, MD

Source: CMS PECOS
PECOS Enrolled Specialists 19 In Frederick, MD
Part B Lab & Imaging Eligible 19 Diagnostic Referrals
DME Ordering Eligible 19 Durable Medical Equipment
Home Health Agency Referrals 19 HHA Ordering Eligible
Showing 1โ€“20 of 24 providers
With recent CMS data first, then Aโ€“Z

Nasim Adimi , PA

Internal Medicine - Gastroenterology

Active NPI Status
310 W Ninth St, Frederick, MD 217014546
Phone: 3016956800
NPI Identifier 1538568365
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Dr. Moustafa Said Ahmed , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
804 Toll House Ave, Frederick, MD 217014519
Phone: 3016957000
NPI Identifier 1225182751
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Dr. Rohini Vij Bhatia , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
310 West 9th Street, Frederick, MD 21701
Phone: 3016956800
NPI Identifier 1821173436
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Dr. Hemant Chatrath , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
400 W 7th St, Frederick, MD 217014506
Phone: 2402156310
NPI Identifier 1639306012
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Dr. Nelson Ta-Ching Chuang , MD, MHS

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
7109 Guilford Dr Ste 300, Frederick, MD 217045179
Phone: 3016956800
NPI Identifier 1336427004
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Dr. Daniel Daniels , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
194 Thomas Johnson Dr, Frederick, MD 217024679
Phone: 2405752526
NPI Identifier 1174631352
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Dr. Pilin Dhoieam Francis , DO

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
110 Thomas Johnson Dr Ste 335, Frederick, MD 217024949
Phone: 3016245566
NPI Identifier 1669967592
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Dr. Carmen Rosa Hernandez , MD

Internal Medicine - Gastroenterology

Active NPI Status
310 W Ninth St, Frederick, MD 217014546
Phone: 3016956800
NPI Identifier 1639172141
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Dr. Shien Hu , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
7109 Guilford Dr Ste 300, Frederick, MD 217045179
Phone: 3016956800
NPI Identifier 1366766966
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Dr. Sean Edward Hunt , MD

Internal Medicine - Gastroenterology

Active NPI Status
310 W Ninth St, Frederick, MD 217014546
Phone: 3016956800
NPI Identifier 1093718504
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Dr. Ali J. Husain , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
7109 Guilford Dr Ste 300, Frederick, MD 217045179
Phone: 3016956800
NPI Identifier 1316998883
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Dr. Natasha Kamal , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
310 W Ninth St, Frederick, MD 217014546
Phone: 3016956800
NPI Identifier 1669748141
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Dr. Leonard E Kane , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
85 Thomas Johnson Ct, Suite B, Frederick, MD 217024331
Phone: 3016639440
NPI Identifier 1588653786
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Erin R Krstanovic , CRNP- ADULT

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
85 Thomas Johnson Ct Ste B, Frederick, MD 217024331
Phone: 3016639440
NPI Identifier 1588317572
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Dr. Gordon Daniel Liss , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
310 W Ninth St, Frederick, MD 217014546
Phone: 3016956800
NPI Identifier 1669620746
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Dr. Andrew D. Mowery , DO

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
7109 Guilford Dr Ste 300, Frederick, MD 217045179
Phone: 3016956800
NPI Identifier 1104084896
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Jessica Joy Rosenberg

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
7109 Guilford Dr Ste 300, Frederick, MD 217045266
Phone: 0136956800
NPI Identifier 1942734694
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Dr. Sanmeet Singh , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
194 Thomas Johnson Dr, Frederick, MD 217024679
Phone: 2402156310
NPI Identifier 1295198166
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Dr. Weiming Ryan Yan , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
7109 Guilford Dr Ste 300, Frederick, MD 217045179
Phone: 3016956800
NPI Identifier 1851552624
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Dr. Dawei Yang , MD

Internal Medicine - Gastroenterology

Active NPI Status Accepts Medicare Assignment
7109 Guilford Dr Ste 300, Frederick, MD 217045179
Phone: 3016956800
NPI Identifier 1922087477
View Full Profile

Frequently Asked Questions about Internal Medicine - Gastroenterology in Frederick

How do I check a Internal Medicine - Gastroenterology practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Maryland licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.