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Internal Medicine Providers in Brentwood, CA

Browse 7 Internal Medicine providers listed in NPPES with a practice address in Brentwood, California.

7 Healthcare Providers

How Brentwood compares with the U.S.

7 active clinicians in Internal Medicine list a practice address in Brentwood, 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 Brentwood 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 Registry addresses can be out of date.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€“7 of 7 providers
With recent CMS data first, then Aโ€“Z

Dr. Sherry Reynolds Albrink , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3291 Walnut Blvd, Suite 100, Brentwood, CA 94513
Phone: 9255139495
NPI Identifier 1417224197
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Dr. Sinan N. Alshahwany , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2400 Balfour Rd, Suite 120, Brentwood, CA 945134945
Phone: 9253088112
NPI Identifier 1801997440
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Dr. Matthew Campbell , MD

Internal Medicine

Active NPI Status
350 John Muir Pkwy, Suite 105, Brentwood, CA 94564
Phone: 9257531986
NPI Identifier 1023108016
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Dr. Joline Heo , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1120 2nd St, Suite A, Brentwood, CA 945132295
Phone: 9255132483
NPI Identifier 1083881858
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Dr. Brian Arellano Reyes , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
6600 Lone Tree Way Ste B, Brentwood, CA 945135256
Phone: 9252769908
NPI Identifier 1972574739
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Dr. Yogesh Kumar Trehan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
100 Cortona Way, Suite 140, Brentwood, CA 945132287
Phone: 9255164488
NPI Identifier 1255372769
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Dr. Spencer K Martin , MD

Internal Medicine

Active NPI Status
2400 Balfour Rd, Suite 120, Brentwood, CA 945134945
Phone: 9253088112
NPI Identifier 1942325220
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Frequently Asked Questions about Internal Medicine in Brentwood

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.

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