NPI Portal NPI Lookup & Verification

Internal Medicine in Watertown, WI

13 active Internal Medicine providers practice in Watertown, Wisconsin according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.

Internal Medicine providers in Watertown, WI
NPI Name Type Specialty Location
1871597211 Alan Detwiler Individual Internal Medicine Physician Watertown, WI
1528235025 Comprehensive Cardiovascular Care, LLP Organization Cardiovascular Disease Physician Watertown, WI
1184698227 Edward Frost Individual Internal Medicine Physician Watertown, WI
1912078007 Moazam J Samdani MD Sc Organization Internal Medicine Physician Watertown, WI
1730156431 Mohamed Yafai Individual Internal Medicine Physician Watertown, WI
1477730372 Optimal Hospitalist Services, Sc Organization Internal Medicine Physician Watertown, WI
1629119417 Prohealth Medical Group Inc Organization Internal Medicine Physician Watertown, WI
1033215835 Watertown Internal Medicine Sc Organization Internal Medicine Physician Watertown, WI
1154500783 Watertown Regional Medical Center Inc Organization Cardiovascular Disease Physician Watertown, WI
1609058429 Watertown Regional Medical Center, Inc Organization Internal Medicine Physician Watertown, WI
1770885683 Watertown Regional Medical Center, Inc Organization Internal Medicine Physician Watertown, WI
1801193651 Watertown Regional Medical Center, Inc Organization Pulmonary Disease Physician Watertown, WI
1437544863 Zachary Richardson Individual Internal Medicine Physician Watertown, WI

Frequently asked questions

How many Internal Medicine providers are in Watertown, WI?
The latest NPPES snapshot lists 13 active Internal Medicine providers with a practice address in Watertown, Wisconsin.
How do I check a Internal Medicine provider's NPI in Watertown?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.

Source: CMS NPPES (public data). Snapshot 2026-07-11.