Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Mark Howard Strassberg, M.D.

Neurology Physician in San Francisco, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1982775987

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Howard Strassberg

Credential M.D.

Sex Male

Practice address San Francisco, CA, 94109

Phone (415) 749-6820

Fax (415) 673-4829

Enumeration date Nov 13, 2006

Last updated in NPPES Mar 27, 2019

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License G038284 (CA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License G038284 (CA) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License GO38284 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Mark Strassberg practice?

The practice location on file with NPPES is in San Francisco, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mark Strassberg?

The National Provider Identifier (NPI) for Mark Strassberg is 1982775987, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-27.