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Internal Medicine Providers in Thornton, CO

Browse 5 Internal Medicine providers listed in NPPES with a practice address in Thornton, Colorado.

5 Healthcare Providers

How Thornton compares with the U.S.

5 active clinicians in Internal Medicine list a practice address in Thornton, CO 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 Thornton 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 Registry addresses can be out of date.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€“5 of 5 providers
With recent CMS data first, then Aโ€“Z

Dr. Richard Joseph Apke , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
51 W 84th Ave, Suite 300, Thornton, CO 802604880
Phone: 3034280533
NPI Identifier 1538148416
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Dr. Todd C Dextradeur , MD

Internal Medicine

Active NPI Status
51 W 84th Ave, Ste 300, Thornton, CO 802604883
Phone: 3037778333
NPI Identifier 1801845532
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Dr. Mechelle D. Viola-Lewis , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
550 Thornton Pkwy Unit 110, Thornton, CO 802292166
Phone: 7208720399
NPI Identifier 1407956089
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Dr. Jeffrey J Warren , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
8451 Pearl St, Thornton, CO 80229
Phone: 3032865129
NPI Identifier 1316140627
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Dr. Gary Louis Zuehlsdorff , DO

Internal Medicine

Active NPI Status
550 Thornton Pkwy, Suite 110, Thornton, CO 802292100
Phone: 3033411799
NPI Identifier 1134247471
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Frequently Asked Questions about Internal Medicine in Thornton

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 Colorado 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.