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Internal Medicine Providers in Waterloo, IA

Browse 37 Internal Medicine providers listed in NPPES with a practice address in Waterloo, Iowa.

37 Healthcare Providers

How Waterloo compares with the U.S.

Waterloo has 55 clinicians in Internal Medicine per 100,000 residents, 24% higher than the U.S. rate of 44.

That is 37 active clinicians in Internal Medicine with a practice address in Waterloo, for a population of 67,008.

The Iowa rate is 27 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.

95% of clinicians in Internal Medicine in Waterloo listed in the CMS Medicare file (21 of 22) accept Medicare assignment. That is similar to the Iowa share of 98%.

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.

27% of clinicians in Internal Medicine in Waterloo listed in the CMS Medicare file (6 of 22) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Iowa share of 17%.

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 Waterloo, IA

Source: CMS PECOS
PECOS Enrolled Specialists 28 In Waterloo, IA
Part B Lab & Imaging Eligible 30 Diagnostic Referrals
DME Ordering Eligible 30 Durable Medical Equipment
Home Health Agency Referrals 30 HHA Ordering Eligible
Showing 1โ€“20 of 37 providers
With recent CMS data first, then Aโ€“Z

Dr. Baha M Abbad , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3421 W 9th St, Waterloo, IA 507025401
Phone: 3192728349
NPI Identifier 1366050064
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Dr. Sidrah Abid , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3421 W 9th St, Waterloo, IA 507025401
Phone: 3192727301
NPI Identifier 1497161830
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Dr. Russell Adams , MD

Internal Medicine

Active NPI Status
146 W Dale St, Suite 201, Waterloo, IA 507031901
Phone: 3192344431
NPI Identifier 1023094265
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Dr. Ali Aziz , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3421 W 9th St, Waterloo, IA 50702
Phone: 3192728349
NPI Identifier 1750767786
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Dr. Renu Bansal , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1731 W Ridgeway Ave Ste 100, Waterloo, IA 507014591
Phone: 3198336200
NPI Identifier 1225238280
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Dr. Bruce Landon Baridon , DO

Internal Medicine

Active NPI Status
1015 S Hackett Rd, Waterloo, IA 507013500
Phone: 3192351230
NPI Identifier 1205894581
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Active NPI Status Accepts Medicare Assignment
3421 W 9th St, Waterloo, IA 507025401
Phone: 3192728000
NPI Identifier 1285251538
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Dr. Vinko M Bogdanic , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3741 Pheasant Ln, Waterloo, IA 507015215
Phone: 3192333611
NPI Identifier 1932184249
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Dr. Brent Evan Buhr , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
905 Franklin St, Waterloo, IA 507034407
Phone: 3192724300
NPI Identifier 1194952200
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Dr. Jonathan Bui , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2710 Saint Francis Dr Ste 210, Waterloo, IA 507025664
Phone: 3192725000
NPI Identifier 1780115964
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Dr. Swarupa Chilakapati , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2710 Saint Francis Dr Ste 210, Waterloo, IA 507025664
Phone: 3192725000
NPI Identifier 1700349008
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Dr. Pratibha Dua , MD

Internal Medicine

Active NPI Status Telehealth Services Available
1717 W Ridgeway Ave, Waterloo, IA 507014543
Phone: 3198335700
NPI Identifier 1235116369
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Dr. Robert Steven Grittmann , DO

Internal Medicine

Active NPI Status
2055 Kimball Ave, Suite 320, Waterloo, IA 507025014
Phone: 3192722340
NPI Identifier 1689707291
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Dr. Kamran Ilyas , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1825 Logan Ave, Waterloo, IA 507031916
Phone: 3192353941
NPI Identifier 1336662733
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Dr. Gowthami Koorapati , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3421 W 9th St, Waterloo, IA 507025401
Phone: 3192728349
NPI Identifier 1497378640
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Dr. Muhammad Naeem , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3421 W 9th St, Waterloo, IA 507025401
Phone: 3192728349
NPI Identifier 1346854940
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Dr. Muhammad Pathan , MD

Internal Medicine

Active NPI Status
905 Franklin St, Waterloo, IA 507034407
Phone: 3192724300
NPI Identifier 1689659914
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Dr. Yadunath Pokharel , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3421 W 9th St, Waterloo, IA 507025401
Phone: 3192728349
NPI Identifier 1194251546
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Active NPI Status Accepts Medicare Assignment
146 W Dale St, Suite 201, Waterloo, IA 507031901
Phone: 3192353838
NPI Identifier 1093076671
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Dr. Tenzin Rabgay , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3421 W 9th St, Waterloo, IA 507025401
Phone: 3192728349
NPI Identifier 1467072967
View Full Profile

Frequently Asked Questions about Internal Medicine in Waterloo

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 Iowa 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.