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Internal Medicine Providers in Chelsea, MI

Browse 8 Internal Medicine providers listed in NPPES with a practice address in Chelsea, Michigan.

8 Healthcare Providers

How Chelsea compares with the U.S.

8 active clinicians in Internal Medicine list a practice address in Chelsea, MI in the NPI registry.

Chelsea has fewer than 10,000 residents, so rates per 100,000 people change a lot with each clinician and are not compared here.

Too few clinicians in Internal Medicine in Chelsea 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 Registry addresses can be out of date.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€“8 of 8 providers
With recent CMS data first, then Aโ€“Z

Dr. Shan Nur Ansari , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
14288 E Old Us Highway 12 Ste 200, Chelsea, MI 481182700
Phone: 7344758677
NPI Identifier 1720108152
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Sarah Bur

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
350 N Main St, Suite 100, Chelsea, MI 481181370
Phone: 7344331500
NPI Identifier 1063730190
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Dr. Mark Francis Grenquist , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
775 S Main St, Chelsea, MI 481181383
Phone: 7345936000
NPI Identifier 1942300454
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Dr. Diane Marie Howlin , MD

Internal Medicine

Active NPI Status
1620 Commerce Park Dr, Suite 100, Chelsea, MI 481181620
Phone: 7344752921
NPI Identifier 1417964552
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Dr. Lynn Kriengkrairut , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
350 N Main St, Chelsea, MI 481181370
Phone: 7344331500
NPI Identifier 1013595750
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Dr. Rebecca Lynn Patrias , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
350 N Main St, Chelsea, MI 481181280
Phone: 7344331500
NPI Identifier 1760594899
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Dr. Rubens Ribeiro , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
775 S Main St, Chelsea, MI 481181383
Phone: 7345936000
NPI Identifier 1396935367
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Dr. Steven A Yarows , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
128 Van Buren St, Chelsea, MI 481181623
Phone: 7344758677
NPI Identifier 1275532087
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Frequently Asked Questions about Internal Medicine in Chelsea

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 Michigan 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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