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

Mark R Greenbaum, MD

Individual provider Emergency Medicine Physician · NPI 1609882331

Mark R Greenbaum, MD is a Family Practice in Santa Cruz, California. Graduated from George Washington University School of Medicine in 1981, 45 years ago. Licensed in California.

Years since qualifying
45
Trained at
George Washington University School of Medicine
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

2025 Soquel Ave
Santa Cruz, CA 95062-1323
Phone: (831) 458-5537
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence G48834 (CA)

Record details

NPI number1609882331
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 1, 2006
Last updated in NPPESMay 24, 2021
Certification dateMay 24, 2021

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1981 (45 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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