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Internal Medicine Providers in Denison, TX

Browse 20 Internal Medicine providers listed in NPPES with a practice address in Denison, Texas.

20 Healthcare Providers

How Denison compares with the U.S.

Denison has 78 clinicians in Internal Medicine per 100,000 residents, about 1.7 times the U.S. rate of 44.

That is 20 active clinicians in Internal Medicine with a practice address in Denison, for a population of 25,778.

The Texas rate is 30 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.

73% of clinicians in Internal Medicine in Denison listed in the CMS Medicare file (11 of 15) accept Medicare assignment. That is lower than the Texas share of 95%.

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.

20% of clinicians in Internal Medicine in Denison listed in the CMS Medicare file (3 of 15) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Texas share of 30%.

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 Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Denison, TX

Source: CMS PECOS
PECOS Enrolled Specialists 16 In Denison, TX
Part B Lab & Imaging Eligible 16 Diagnostic Referrals
DME Ordering Eligible 16 Durable Medical Equipment
Home Health Agency Referrals 16 HHA Ordering Eligible
Showing 1โ€“20 of 20 providers
With recent CMS data first, then Aโ€“Z

Dr. Jenson Abraham , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5016 S Us Highway 75, Denison, TX 750204584
Phone: 9034164378
NPI Identifier 1205074135
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Dr. Asghar Ali , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5016 Us Hwy 75, Denison, TX 750204584
Phone: 9034164000
NPI Identifier 1922354174
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Dr. Bill M Balch , MD

Internal Medicine

Active NPI Status
5012 S Us Highway 75, Suite 300, Denison, TX 750204587
Phone: 9034166015
NPI Identifier 1548219959
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Dr. Angelica Sandoval Balingit , MD

Internal Medicine

Active NPI Status
5012 S Us Highway 75 Ste 300, Denison, TX 750204589
Phone: 9034166015
NPI Identifier 1861436040
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Dr. Charles W Derbes , MD

Internal Medicine

Active NPI Status
5016 S Us Highway 75, Attn: Texomacare Hospitalist Program, Denison, TX 750204584
Phone: 9034164378
NPI Identifier 1427003466
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Dr. Azar Ehsan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5016 S Us Highway 75, Attn: Hospitalist Program, Denison, TX 750204584
Phone: 9034164378
NPI Identifier 1851616304
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Dr. Ehson Muhammad Javaid , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5016 S Us Highway 75, Denison, TX 750204584
Phone: 9034164000
NPI Identifier 1528351715
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Dr. Birendra Narayan Lal , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5016 S Us Highway 75, Attn: Hospitalist Program, Denison, TX 750204584
Phone: 9034164378
NPI Identifier 1760437719
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Dr. Marilyn M Landrum , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5012 S Us Highway 75, Suite 300, Denison, TX 750204587
Phone: 9304166025
NPI Identifier 1285683987
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Dr. Vanessa N Ohnes-Verduguez , MD

Internal Medicine

Active NPI Status
5012 S Us Highway 75, Suite 300, Denison, TX 750204587
Phone: 9034166015
NPI Identifier 1396988770
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Dr. Utkal Patel , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5016 Us Hwy 75, Denison, TX 750204584
Phone: 9034172000
NPI Identifier 1063742005
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Dr. Mir M. A Quadri , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
Texoma Medical Center, 5016 N Hwy 75, Denison, TX 75020
Phone: 8474145573
NPI Identifier 1235468703
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Dr. Robert C Sanders , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5012 S Us Highway 75, Suite 300, Denison, TX 750204587
Phone: 9034166010
NPI Identifier 1528001781
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Dr. Ted F Truly , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5012 S Us Highway 75, Suite 300, Denison, TX 750204587
Phone: 9034166010
NPI Identifier 1447209531
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Dr. W Mackey Watkins , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5012 S Us Highway 75, Suite 300, Denison, TX 750204587
Phone: 9034166010
NPI Identifier 1679527527
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Dr. Robert Ross Watson , MD

Internal Medicine

Active NPI Status
5016 S Us Highway 75, Hospitalist Program, Denison, TX 750204584
Phone: 9034164378
NPI Identifier 1265457956
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Dr. Nasheel Joules , MD

Internal Medicine

Active NPI Status
5016 S Us Highway 75, Attn: Texomacare Hospitalist Program, Denison, TX 750204584
Phone: 9034164378
NPI Identifier 1063670628
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Indira Ojha

Internal Medicine

Active NPI Status
5016 S Us Highway 75, Denison, TX 750204584
Phone: 9034164000
NPI Identifier 1437851672
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Dr. Grace B Tucker , MD

Internal Medicine

Active NPI Status
1014 Memorial Dr, 1st Floor, Denison, TX 750202079
Phone: 9034166000
NPI Identifier 1376595629
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Dr. Glen Robert Willie , MD

Internal Medicine

Active NPI Status
900 N Armstrong Ave, Denison, TX 750202230
Phone: 9034652440
NPI Identifier 1205887973
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Frequently Asked Questions about Internal Medicine in Denison

How do I check a Internal Medicine 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 Texas 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.