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Internal Medicine - Nephrology Specialists in Marshfield, WI

Browse 10 Internal Medicine - Nephrology providers listed in NPPES with a practice address in Marshfield, Wisconsin.

10 Healthcare Providers

How Marshfield compares with the U.S.

Marshfield has 53 clinicians in Internal Medicine - Nephrology per 100,000 residents, 13.3 times the U.S. rate of 4.0.

That is 10 active clinicians in Internal Medicine - Nephrology with a practice address in Marshfield, for a population of 18,700.

The Wisconsin rate is 3.5 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.

Too few clinicians in Internal Medicine - Nephrology in Marshfield are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

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 Registry addresses can be out of date.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. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Showing 1โ€“10 of 10 providers
With recent CMS data first, then Aโ€“Z

Dr. Wadad Fayez Ailabouni , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
1000 N Oak Ave, Marshfield, WI 544495703
Phone: 7153890636
NPI Identifier 1811196355
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Dr. Rebecca M. Blonsky , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
1000 N Oak Ave, Marshfield, WI 544495703
Phone: 7153875511
NPI Identifier 1669812764
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Dr. Douglas P Duffy , MD

Internal Medicine - Nephrology

Active NPI Status
1000 N Oak Ave, Marshfield, WI 54449
Phone: 7153875345
NPI Identifier 1366542227
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Dr. Brian H Ewert , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
1000 N Oak Ave, Marshfield, WI 54449
Phone: 7153875345
NPI Identifier 1306946256
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Dr. Siddhartha Kattamanchi , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1000 N Oak Ave, Marshfield, WI 544495703
Phone: 7153875511
NPI Identifier 1316388382
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Dr. Abdallah Qasim , MBBS

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
1000 N Oak Avenue, Or, Marshfield, WI 544495703
Phone: 7153875511
NPI Identifier 1205314036
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Dr. Rosemary Ebozue Reriani , MD

Internal Medicine - Nephrology

Active NPI Status Accepts Medicare Assignment
1000 N Oak Ave, Marshfield, WI 544495703
Phone: 7153875511
NPI Identifier 1336355825
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Dr. Ifeoluwa Toyin Stowe , MD

Internal Medicine - Nephrology

Active NPI Status
1000 N Oak Ave, Marshfield, WI 544495703
Phone: 7153875511
NPI Identifier 1891365243
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Dr. H Thomas Campbell , MD

Internal Medicine - Nephrology

Active NPI Status
1000 N Oak Ave, Marshfield, WI 544495777
Phone: 7153875345
NPI Identifier 1740395201
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Dr. Narayana S Murali , MD

Internal Medicine - Nephrology

Active NPI Status
1000 N Oak Ave, Marshfield, WI 544495703
Phone: 7153875511
NPI Identifier 1942274352
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Frequently Asked Questions about Internal Medicine - Nephrology in Marshfield

How do I check a Internal Medicine - Nephrology 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 Wisconsin 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.