Registry data as of Aug 27, 2026

David Alfon

Registered Nurse · San Francisco, CA

David Alfon is a registered nurse with a practice address in San Francisco, California, and NPI 1558106336, issued on Jun 25, 2024. Check the license (California 674422, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1558106336
Name
David Alfon
Primary taxonomy
Registered Nurse 163W00000X
License number
674422 CA
Self-reported in NPPES; status is on the state search
Practice location
1600 Divisadero St, San Francisco, CA 94143
Phone
(310) 739-8916
Enumerated
Jun 25, 2024
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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Also registered at 1600 Divisadero St

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

  1. Betsy Althaus, PHARM.D.Pharmacist1366650657
  2. Christian Apfel, MD, PHDAnesthesiology Physician1578651105
  3. Mehrdad Arjomandi, MDCritical Care Medicine (Internal Medicine) Physician1912951153
  4. Chloe Atreya, MD, PHDMedical Oncology Physician1326058777
  5. Ronald Balassanian, MDAnatomic Pathology & Clinical Pathology Physician1043282379
  6. Fady BekheetPharmacist1780223131

Verify David Alfon 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 674422
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

625 registered nurse records list a practice address in San Francisco

They are 625 of the 38,143 NPPES records with a practice address in San Francisco, and 13,506 registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other registered nurse records in California

  1. Patricia A Onyango, RNModesto, CA1780424473
  2. Adelaida A Zavala, RNOntario, CA1235702804
  3. Anu Aaltonen-Bond, RNRancho Cordova, CA1972895696
  4. Victoria AardappelChico, CA1396148698
  5. Denise Aaron, RNSan Diego, CA1497345268
  6. Bernadette Marie Abadilla, RNMillbrae, CA1154970697
  7. Brenda Abalos, RNNational City, CA1497064737
  8. Carla Abalos, RNUnion City, CA1669158523
  9. Caron Faustino Marti AbalosCerritos, CA1811603327
  10. Geraldine Abalos, RNSanta Cruz, CA1073456109

Common questions

What is David Alfon's NPI number?

David Alfon's National Provider Identifier (NPI) is 1558106336, issued on Jun 25, 2024. An NPI identifies a provider in billing; it is not a license.

Where is David Alfon located?

The NPPES record lists a practice address at 1600 Divisadero St, San Francisco, CA, 94143. Phone: (310) 739-8916. Providers update this record themselves, so call before visiting.

How can I verify David Alfon's license?

NPPES lists California license number 674422, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

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) 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 27, 2026.