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Internal Medicine Providers in Winona, MN

Browse 11 Internal Medicine providers listed in NPPES with a practice address in Winona, Minnesota.

11 Healthcare Providers

How Winona compares with the U.S.

Winona has 42 clinicians in Internal Medicine per 100,000 residents, close to the U.S. rate of 44.

That is 11 active clinicians in Internal Medicine with a practice address in Winona, for a population of 26,009.

That is close to the Minnesota rate of 46.

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.

Too few clinicians in Internal Medicine in Winona 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 Registry addresses can be out of date.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€“11 of 11 providers
With recent CMS data first, then Aโ€“Z

Dr. Andrew E Edin , MD

Internal Medicine

Active NPI Status
855 Mankato Ave, Winona, MN 559874868
Phone: 5074543680
NPI Identifier 1053428508
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Dr. Richard C Ferris , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
855 Mankato Ave, Winona, MN 559874868
Phone: 5074543680
NPI Identifier 1245347780
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Dr. Katrina Ruth Hammel , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
855 Mankato Ave, Winona, MN 559874868
Phone: 5074543650
NPI Identifier 1780894527
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Dr. Joseph Kaiya , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
855 Mankato Ave, Winona, MN 559874868
Phone: 5074543650
NPI Identifier 1134550544
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Dr. Charles A Shepard , MD

Internal Medicine

Active NPI Status
859 Mankato Ave, Winona, MN 55987
Phone: 5074543680
NPI Identifier 1477563179
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Dr. Jacob Thomas , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
855 Mankato Ave, Winona, MN 559874868
Phone: 5074543650
NPI Identifier 1740501493
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Horace J Andersen , MN

Internal Medicine

Active NPI Status
1758 Edgewood Rd, Winona, MN 559872149
Phone: 5074545895
NPI Identifier 1659510659
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Dr. Arnold W Fenske , MD

Internal Medicine

Active NPI Status
855 Mankato Ave, Winona, MN 559874868
Phone: 5074543680
NPI Identifier 1831109495
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Dr. John G Mulrooney , MD

Internal Medicine

Active NPI Status
859 Mankato Avenue, Winona Clinic Ltd, Winona, MN 55987
Phone: 5074543680
NPI Identifier 1275543829
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Dr. Robert W. Neilson , MD

Internal Medicine

Active NPI Status
855 Mankato Ave, Winona, MN 559874868
Phone: 5074543650
NPI Identifier 1952390338
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Dr. Dennis G Nolan , MD

Internal Medicine

Active NPI Status
855 Mankato Ave, Winona, MN 559874868
Phone: 5074543680
NPI Identifier 1619987278
View Full Profile

Frequently Asked Questions about Internal Medicine in Winona

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 Minnesota 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.

Other Specialties in Winona

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