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

Ryan John Anderson, M.D.

Critical Care Medicine (Internal Medicine) Physician in Oakland, CA · enumerated 2014.

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

National Provider Identifier

1194130849

Verified

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Registry record

Entity type Individual (Type 1)

Name Ryan John Anderson

Credential M.D.

Sex Male

Practice address Oakland, CA, 94609

Phone (510) 465-6800

Enumeration date Jun 20, 2014

Last updated in NPPES Jan 14, 2021

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

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License A140880 (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 Ryan Anderson practice?

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

What is the NPI number for Ryan Anderson?

The National Provider Identifier (NPI) for Ryan Anderson is 1194130849, a Type 1 (individual) record in the CMS NPPES registry.

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Richard Nusser Pulmonary Disease Physician · Oakland, CA NPI 1013979525 Maryann Blackwell Psychiatric/Mental Health Registered Nurse · Oakland, CA NPI 1518179530 Valentine Ifeacho Critical Care Medicine (Internal Medicine) Physician · Oakland, CA NPI 1619297629 Edward Verceles General Practice Physician · Oakland, CA NPI 1215258371 Neha Ahuja Critical Care Medicine (Internal Medicine) Physician · Oakland, CA NPI 1558658492 Leena Jalota Critical Care Medicine (Internal Medicine) Physician · Oakland, CA NPI 1083992713 Elizabeth Spaetzel Critical Care Medicine Nurse Practitioner · Oakland, CA NPI 1609315522 Bay Area Foot Care, Inc Foot & Ankle Surgery Podiatrist · Oakland, CA NPI 1669004644

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-14.