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

Mark Portman, MD

Individual provider Emergency Medicine Physician · NPI 1023545340

Mark Portman, MD is an Emergency Medicine in Sacramento, California. Qualified in 2017, 9 years ago. Practices with Vituity-California Observation Services PC, a 84-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
9
Licensed in
CA
In the registry since
2017
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

2315 Stockton Blvd
Sacramento, CA 95817
Phone: (916) 734-8570
Fax: (916) 734-7950
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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 A158525 (CA)

Record details

NPI number1023545340
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2017
Last updated in NPPESJuly 9, 2020
Certification dateJuly 9, 2020

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Vituity-California Observation Services Pc — 84 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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