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

Mark P. Clark, MD

Individual provider Internal Medicine Physician · NPI 1891874665

Mark P. Clark, MD is an Internal Medicine in Glendale, California. Graduated from Loyola University of Chicago, Stritch School of Medicine in 1982, 44 years ago. Practices with City and County of San Francisco, a 369-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
44
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
2
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

3746 Foothill Blvd # B140
Glendale, CA 91214-1740
Phone: (310) 445-5999
Fax: (323) 544-4248
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 840 Irving St, San Francisco, CA 94122-2311 — (888) 663-6331

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G50527 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence G50527 (CA)

Record details

NPI number1891874665
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 3, 2006
Last updated in NPPESNovember 18, 2025
Certification dateNovember 18, 2025
Mailing address3746 Foothill Blvd # B140, Glendale, CA 91214-1740

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGENERAL SURGERY
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice City And County Of San Francisco — 369 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Glendale