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

Dr. Mark Zeme, MD

Individual provider Otolaryngology Physician · NPI 1669400388

Dr. Mark Zeme, MD is an Otolaryngology in Castro Valley, California. Graduated from University of Michigan Medical School in 1987, 39 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
39
Trained at
University of Michigan Medical School
Licensed in
CA
In the registry since
2006
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

20400 Lake Chabot Rd Ste 301
Castro Valley, CA 94546-5316
Phone: (510) 889-6673
Fax: (510) 889-0913
Show map & directions

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

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence G66448 (CA)

Record details

NPI number1669400388
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 29, 2006
Last updated in NPPESMarch 4, 2014
Mailing address20400 Lake Chabot Rd Ste 301, Castro Valley, CA 94546-5316

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 1987 (39 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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