NPPES file of Aug 9, 2026

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

Gerontology Nurse Practitioner · Pleasant Hill, CA

David Buffum, R.N., N.P. is a gerontology nurse practitioner with a practice address in Pleasant Hill, California, and NPI 1295043859, issued on Sep 16, 2010. Check the license (California 682924, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295043859
Name
David Buffum
Credential
R.N., N.P.
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
682924 CA
Self-reported in NPPES; status is on the state search
Practice location
400 Taylor Blvd, Pleasant Hill, CA 94523
Phone
(925) 677-5041
Enumerated
Sep 16, 2010
Record last updated
Sep 16, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(925) 677-5025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest gerontology nurse practitioner records → All 569 in California → Look up another NPI →

Also registered at 400 Taylor Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Candida Brown, M.D.Specialist1649375445
  2. Esther Catalya, M.D.Hematology & Oncology Physician1629184148
  3. Miguel Cerejo, D.O.Hematology & Oncology Physician1447236344
  4. Gigi Chen, M.D.Hematology & Oncology Physician1821073636
  5. Rujul Desai, MDNeurology with Special Qualifications in Child Neurology Physician1255727871
  6. Jasmin Eshragh, C.N.S.Oncology Clinical Nurse Specialist1003200734

Verify David Buffum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 682924    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $134.49

1 payment: food and beverage; the largest payer was Molnlycke Health Care US, LLC. The 3,903 providers of this specialty with any payment received $742.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Buffum$134.49
  2. Specialty average$742.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

David Buffum among 569 gerontology nurse practitioner records in California

David Buffum, R.N., N.P. is one of 569 gerontology nurse practitioner records with a practice address in California. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 24% of them.

  • NPI issued2010 · 24% of these records are older, 73% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · 42% of these records are
  • Record last updated2010 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gerontology Nurse Practitioner providers in California

There are 569 gerontology nurse practitioner records in California.

All 569 in California → Every provider in Pleasant Hill → Gerontology Nurse Practitioner nationwide →

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Melissa Clark, ARNPConcord, CA 945201639681000
  2. Tanya Kailath, GNP-BCEl Cerrito, CA 945301932437076
  3. Charo VitugAntioch, CA 945311720826043
  4. Maria Mercado-Gans, MSN, PHN, RN, NPFairfield, CA 945341760176309
  5. Laura SanchezFremont, CA 945361942945191
  6. Kamala Gc, NPFremont, CA 945391508740770
  7. Ann Skradski, GNPMartinez, CA 945531285696542
  8. Kathleen Kinda, NURSE PRACTITIONERNapa, CA 945581962039537

Common questions

What is David Buffum, R.N., N.P.'s NPI number?

David Buffum, R.N., N.P.'s National Provider Identifier (NPI) is 1295043859, issued on Sep 16, 2010. An NPI identifies a provider in billing; it is not a license.

Where is David Buffum, R.N., N.P. located?

The NPPES record lists a practice address at 400 Taylor Blvd, Pleasant Hill, CA, 94523. Phone: (925) 677-5041. Providers update this record themselves, so call before visiting.

How can I verify David Buffum, R.N., N.P.'s license?

NPPES lists California license number 682924, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.