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

Dr. Bennett Harris Penn, MD, PHD

Individual provider Internal Medicine Physician · NPI 1275715245

Dr. Bennett Harris Penn, MD, PHD practises Internal Medicine in San Francisco, California. Graduated from University of Washington School of Medicine in 2006, 20 years ago. Practices with County of Sacramento, a 45-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
20
Trained at
University of Washington School of Medicine
Licensed in
CA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

400 Parnassus Ave Rm A591 Box 0359
San Francisco, CA 94143-2202
Phone: (415) 353-2626
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence A101621 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A101621 (CA)

Record details

NPI number1275715245
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedDecember 3, 2007
Last updated in NPPESJune 30, 2020
Certification dateJune 30, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesINFECTIOUS DISEASE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice County Of Sacramento — 45 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients59
Services billed 115 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at County of Sacramento

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 45 clinicians in the practice; 12 are shown here.

Other providers in San Francisco