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

Individual provider Internal Medicine Physician · NPI 1164447959

Dr. Siamak Stephen Marzban, MD is an Internal Medicine in San Pedro, California. Qualified in 1979, 47 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
47
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

2403 S Moray Ave Ste 2B
San Pedro, CA 90732-4358
Phone: (310) 832-2694
Fax: (310) 547-0140
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A48221 (CA)

Record details

NPI number1164447959
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 13, 2006
Last updated in NPPESFebruary 20, 2017

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1979 (47 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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