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Internal Medicine Providers in Watertown, WI

Browse 4 Internal Medicine providers listed in NPPES with a practice address in Watertown, Wisconsin.

4 Healthcare Providers

How Watertown compares with the U.S.

4 active clinicians in Internal Medicine list a practice address in Watertown, WI in the NPI registry.

With fewer than 10 clinicians, rates per 100,000 residents are not reliable enough to compare.

Too few clinicians in Internal Medicine in Watertown 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 Registry addresses can be out of date.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.

Showing 1โ€“4 of 4 providers
With recent CMS data first, then Aโ€“Z

Dr. Edward Fairfax Frost , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
109 Air Park Dr, Prohealth Care Medical Associates Inc., Watertown, WI 530947400
Phone: 2629285100
NPI Identifier 1184698227
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Dr. Zachary Richardson , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
125 Hospital Dr, Watertown, WI 53098
Phone: 9202455741
NPI Identifier 1437544863
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Dr. Mohamed H Yafai , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
123 Hospital Drive, Suite 2009, Watertown, WI 53098
Phone: 9202629833
NPI Identifier 1730156431
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Dr. Alan L. Detwiler , MD

Internal Medicine

Active NPI Status
125 Hospital Dr, Watertown, WI 530983303
Phone: 9202624210
NPI Identifier 1871597211
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Frequently Asked Questions about Internal Medicine in Watertown

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 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.

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