Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Buffum, R.N., N.P.

Gerontology Nurse Practitioner in Pleasant Hill, CA · enumerated 2010.

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

National Provider Identifier

1295043859

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Registry record

Entity type Individual (Type 1)

Name David Buffum

Credential R.N., N.P.

Sex Male

Practice address 400 Taylor Blvd, Ste 202, Pleasant Hill, CA, 94523

Phone (925) 677-5041

Fax (925) 677-5025

Enumeration date Sep 16, 2010

Last updated in NPPES Sep 16, 2010

Taxonomy & licenses

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 682924 (CA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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.

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Frequently asked questions

Is NPI 1295043859 active?

Yes, as of the latest NPPES snapshot, NPI 1295043859 is active (record last updated 2010-09-16).

How do I verify David Buffum's NPI record?

Cross-check NPI 1295043859 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

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Robert Robles Hematology & Oncology Physician · Pleasant Hill, CA NPI 1518963958 Diablo Valley Oncology and Hematology Medical Group, Inc. Hematology & Oncology Physician · Pleasant Hill, CA NPI 1417953878 Matthew Sirott Hematology & Oncology Physician · Pleasant Hill, CA NPI 1023014461 Gigi Chen Hematology & Oncology Physician · Pleasant Hill, CA NPI 1821073636 Miguel Cerejo Hematology & Oncology Physician · Pleasant Hill, CA NPI 1447236344 Neurology Medical Group of Diablo Valley Inc Neurology Physician · Pleasant Hill, CA NPI 1598737926 Janet Lin Neurology Physician · Pleasant Hill, CA NPI 1679536130 Tiffany Svahn Hematology & Oncology Physician · Pleasant Hill, CA NPI 1518920479

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-16.