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Physician Profile

Penny E. Borenstein, MD

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At a glance

About Dr. Borenstein

Based in San Luis Obispo, CA, Penny E. Borenstein, MD is listed in the NPI registry under public health & general preventive medicine. Penny graduated from State University of Ny Upstate Medical University in 1988. Medicare claims data shows Penny provided 109 services to 105 patients. The services billed most often include admn sarscov2 vacc 1 dose, administration of influenza virus vaccine, and influenza vaccine split virus, preservative free. NPI 1588830863 identifies this record in the national registry.

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

Credentials & Licensing

CA · Physician and Surgeon GMedical Board of California
No. 88337DelinquentExpired Aug 31, 2026Since 2008
NPINational Provider Identifier
1588830863Issued 2008

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Medicare information

Accepts Medicare assignmentYes
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 kind of doctor is Dr. Borenstein?

Dr. Borenstein is a public health & general preventive medicine in San Luis Obispo, CA. That is the designation recorded for this NPI in the federal registry.

NPI registry

What is Dr. Borenstein's address?

Dr. Borenstein is listed at 2191 Johnson Ave, San Luis Obispo, CA 93401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Dr. Borenstein?

The number on file is (805) 781-5519. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Dr. Borenstein?

Dr. Borenstein's National Provider Identifier is 1588830863. 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. Borenstein train?

Dr. Borenstein attended State University of Ny Upstate Medical University, graduating in 1988. This comes from the CMS National Downloadable File.

CMS public data

How much experience does Dr. Borenstein have?

Dr. Borenstein has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.

CMS public data

What procedures does Dr. Borenstein perform?

According to Medicare billing data, Dr. Borenstein provides treatments such as admn sarscov2 vacc 1 dose and influenza vaccine split virus, preservative free. This reflects Medicare patients only and is billing volume, not a measure of quality.

Medicare claims

Is Dr. Borenstein's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Borenstein. 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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