NPPES file of Aug 9, 2026

Stephen F. Diaz, P.A.

Surgical Physician Assistant · Sacramento, CA

Stephen F. Diaz, P.A. is a surgical physician assistant with a practice address in Sacramento, California, and NPI 1417996687, issued on Jun 5, 2006. Check the license (California PA10027, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417996687
Name
Stephen F. Diaz
Credential
P.A.
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License number
PA10027 CA
Self-reported in NPPES; status is on the state search
Practice location
3941 J St, Sacramento, CA 95819
Phone
(916) 733-6850
Enumerated
Jun 5, 2006
Record last updated
Jul 13, 2026
Fax
(916) 733-6824
Medicaid ID
PA10027 CA
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 surgical physician assistant records → All 1,075 in California → Look up another NPI →

Also registered at 3941 J St

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

  1. Randy Arai, M.D.Specialist1689755852
  2. Arash Aryana, M.D.Clinical Cardiac Electrophysiology Physician1548279672
  3. Jong Chen, M.D.Specialist1346313228
  4. Shu Chen, MDInternal Medicine Physician1467541987
  5. Gina Collier, NPCardiovascular Disease Physician1710218474
  6. Ralph Cox, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1962454306

Verify Stephen F. Diaz 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 PA10027    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

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Stephen F. Diaz among 1,075 surgical physician assistant records in California

Stephen F. Diaz, P.A. is one of 1,075 surgical physician assistant records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 74% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2026 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Physician Assistant providers in California

There are 1,075 surgical physician assistant records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,075 in California → Every provider in Sacramento → Surgical Physician Assistant nationwide →

The 8 surgical physician assistant records with the nearest ZIP codes

  1. Ani ChopourianSacramento, CA 958191790984292
  2. Patricia Dipinto, PA-CSacramento, CA 958191528268638
  3. Scott Harper, PASacramento, CA 958191528258985
  4. Malinda Lydon, P.A.Sacramento, CA 958191619928975
  5. Ygnacio Marquez, P.A.Sacramento, CA 958191538108691
  6. Steven Meeks, PA-CSacramento, CA 958191003264300
  7. Jeffrey Mello, PACSacramento, CA 958191245239201
  8. Jorge Nava, P.A.Sacramento, CA 958191447202817

Common questions

What is Stephen F. Diaz, P.A.'s NPI number?

Stephen F. Diaz, P.A.'s National Provider Identifier (NPI) is 1417996687, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen F. Diaz, P.A. located?

The NPPES record lists a practice address at 3941 J St, Sacramento, CA, 95819. Phone: (916) 733-6850. Providers update this record themselves, so call before visiting.

How can I verify Stephen F. Diaz, P.A.'s license?

NPPES lists California license number PA10027, 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. 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.