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Physician Profile

Jeffrey A. Berenson, MD

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At a glance

About Dr. Berenson

Jeffrey A. Berenson, MD is a healthcare provider in Mendocino, CA specializing in internal medicine. Jeffrey trained at University of California, San Francisco School of Medicine, graduating in 1978. Medicare claims data shows Jeffrey provided 1,186 services to 576 patients. The services billed most often include established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1902828619.

Factual summary compiled by Guide.md from public records; not written by this provider.

Specialty

Internal Medicine (Primary)

Credentials & Licensing

CA · Physician and Surgeon GMedical Board of California
No. 39574CurrentExpired Oct 31, 2026Since 1979
NPINational Provider Identifier
1902828619Issued 2006

Snapshot · verify with the board ↗

Medicare information

Accepts Medicare assignmentYes
Telehealth reported to CMSYes
Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What does Dr. Berenson specialize in?

Dr. Berenson is an internist in Mendocino, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.

NPI registry

Where is Dr. Berenson located?

Dr. Berenson is listed at 45081 Little Lake Street, Mendocino, CA 95460. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Berenson's phone number?

The number on file is (707) 937-1055. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Dr. Berenson?

Dr. Berenson's National Provider Identifier is 1902828619. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Where did Dr. Berenson go to medical school?

Dr. Berenson attended University of California, San Francisco School of Medicine, graduating in 1978. This comes from the CMS National Downloadable File.

CMS public data

How much experience does Dr. Berenson have?

Dr. Berenson has 48 years experience. Calculated from a graduation year of 1978, reported in the CMS National Downloadable File.

CMS public data

What does Dr. Berenson do most often?

According to Medicare billing data, Dr. Berenson the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.

Medicare claims

Is Dr. Berenson's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Berenson. If this is you, claiming it is free.

Guide.md

Guide.md listings do not constitute medical advice or an endorsement.

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