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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Erin Chamberlain, M.D.

Hematology & Oncology Physician in San Luis Obispo, CA · enumerated 2013.

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

National Provider Identifier

1902249469

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Registry record

Entity type Individual (Type 1)
Name Erin Chamberlain
Credential M.D.
Sex Female
Practice address 892 Aerovista Pl Ste 240, San Luis Obispo, CA, 93401
Phone (805) 543-8252
Enumeration date Apr 15, 2013
Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License A142151 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
A142151 Other CA STATE LICENSE

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 1902249469 active?
Yes, as of the latest NPPES snapshot, NPI 1902249469 is active (record last updated 2023-03-07).
How do I verify Erin Chamberlain's NPI record?
Cross-check NPI 1902249469 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.