Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael C. Forster, MD

Emergency Medicine Physician in Sonora, CA · enumerated 2006 · practices at Tuolumne General Medical Associates.

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

National Provider Identifier

1821101577

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Michael C. Forster

Credential MD

Sex Male

Practice address 101 Hospital Road, Sonora, CA, 95370

Phone (209) 533-7100

Enumeration date Aug 16, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License A45060 (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

Is NPI 1821101577 active?

Yes, as of the latest NPPES snapshot, NPI 1821101577 is active (record last updated 2007-07-08).

How do I verify Michael Forster's NPI record?

Cross-check NPI 1821101577 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Ron Hood Emergency Medicine Physician · Sonora, CA NPI 1730292483 Tuolumne General Medical Associates Emergency Medicine Physician · Sonora, CA NPI 1528151727

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.