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Internal Medicine Providers in Clearlake, CA

Browse 5 Internal Medicine providers listed in NPPES with a practice address in Clearlake, California.

5 Healthcare Providers

How Clearlake compares with the U.S.

5 active clinicians in Internal Medicine list a practice address in Clearlake, CA 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 Clearlake 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 Registry addresses can be out of date.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. Manush Ghazaryan , MD

Internal Medicine

Active NPI Status
15230 Lakeshore Dr, Clearlake, CA 954228107
Phone: 7079954500
NPI Identifier 1548962566
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Dr. Raymond Dean Jennings , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
15230 Lakeshore Dr, Clearlake, CA 954228107
Phone: 7079954500
NPI Identifier 1386659167
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Dr. Eric E. Kim , MD

Internal Medicine

Active NPI Status
4456 Manzanita Ave, Suite# C, Clearlake, CA 954227937
Phone: 7079949191
NPI Identifier 1578660916
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Dr. Marc Randall Shapiro , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3400 Emerson St, Suite A, Clearlake, CA 954229529
Phone: 7079947241
NPI Identifier 1740217348
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Dr. Milagros Tolentino , MD

Internal Medicine

Active NPI Status
15666 18th Ave, Clearlake, CA 95422
Phone: 7079949469
NPI Identifier 1245212505
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Frequently Asked Questions about Internal Medicine in Clearlake

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 California 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.

Internal Medicine Providers in Other California Cities

Cities with the most listed practitioners first.