NPI Portal NPI Lookup & Verification

Internal Medicine in Frisco, CO

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

Internal Medicine providers in Frisco, CO
NPI Name Type Specialty Location
1578532511 David Biggs Individual Hematology & Oncology Physician Frisco, CO
1902006356 Katarina Nelson Individual Cardiovascular Disease Physician Frisco, CO
1639171440 Marc Shiffman Individual Internal Medicine Physician Frisco, CO
1346226602 Mark A Norden M.D.,PC Organization Internal Medicine Physician Frisco, CO
1881670131 Mark Norden Individual Internal Medicine Physician Frisco, CO
1760464531 Melvin Stjernholm Individual Endocrinology, Diabetes & Metabolism Physician Frisco, CO
1962400341 Peter Lemis Individual Cardiovascular Disease Physician Frisco, CO

Frequently asked questions

How many Internal Medicine providers are in Frisco, CO?
The latest NPPES snapshot lists 14 active Internal Medicine providers with a practice address in Frisco, Colorado.
How do I check a Internal Medicine provider's NPI in Frisco?
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 2026-07-10.