Individual provider · Type 1 NPI

Ryan C. Chang, MD

Critical Care Medicine (Internal Medicine) Physician · San Francisco, CA

NPI number 1831277417 Active

Practice location

2425 Geary Blvd, Mezz Critical Care/hbs
San Francisco, CA 94115-3358

Call (415) 833-2200 Map

Specialties and licenses

TaxonomyCodeLicense
Critical Care Medicine (Internal Medicine) Physician Primary 207RC0200XA63692 (CA)

Critical Care Medicine (Internal Medicine) Physician: An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

395 other providers at this address

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About NPI 1831277417

Ryan C. Chang, MD's National Provider Identifier is 1831277417, issued on Nov 1, 2006. The primary taxonomy on file is Critical Care Medicine (Internal Medicine) Physician (207RC0200X), and the practice location is in San Francisco, CA. The record was last updated on Sep 1, 2026.