Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Penny Ellen Borenstein, MD

Individual provider Public Health & General Preventive Medicine Physician · NPI 1588830863

Dr. Penny Ellen Borenstein, MD is a Preventive Medicine in San Luis Obispo, California. Graduated from State University of Ny Upstate Medical University in 1988, 38 years ago. Practices with County of San Luis Obispo, an 11-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
38
Trained at
State University of Ny Upstate Medical University
Licensed in
CA
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2191 Johnson Ave
San Luis Obispo, CA 93401-4534
Phone: (805) 781-5519
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Public Health & General Preventive Medicine Physician (primary) Taxonomy 2083P0901X · Licence G88337 (CA)

Record details

NPI number1588830863
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 6, 2008
Last updated in NPPESSeptember 28, 2010

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPREVENTIVE MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolSTATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY
Graduated 1988 (38 years in practice)
Group practice County Of San Luis Obispo — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in San Luis Obispo