NPPES file of Aug 9, 2026

Manuel G. Diaz, MD

Anesthesiology Physician · Santa Rosa, CA

Manuel G. Diaz, MD is an anesthesiology physician with a practice address in Santa Rosa, California, and NPI 1922183243, issued on Oct 26, 2006. Check the license (California G54412, as entered in NPPES) on the Medical Board of California; 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
1922183243
Name
Manuel G. Diaz
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
G54412 CA
Self-reported in NPPES; status is on the state search
Practice location
401 Bicentennial Way, Santa Rosa, CA 95403
Phone
(707) 571-4000
Enumerated
Oct 26, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
00G544120 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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Also registered at 401 Bicentennial Way

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

  1. Anna Ackerman, RNRegistered Nurse1376409409
  2. Patricia AdamsPhysical Therapist1124971825
  3. Hugo Aguilar, PHARMDPharmacist1992389134
  4. Heather Aiello, OTR/LOccupational Therapist1851155022
  5. Sandra Akrawi, REGISTERED DIETITIANRegistered Dietitian1790821031
  6. Miguel Alcala, LCSWClinical Social Worker1629857891

Verify Manuel G. Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G54412
    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
Open 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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Manuel G. Diaz among 7,571 anesthesiology physician records in California

Manuel G. Diaz, MD is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 53% newer
  • In a Medicare fileNo · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 64% of these records are
  • Record last updated2007 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in California

There are 7,571 anesthesiology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Stephen Arietta, MDSanta Rosa, CA 954031811071897
  2. Gwendolyn Boatman, MDSanta Rosa, CA 954031952485955
  3. Mark Fahey, MDSanta Rosa, CA 954031184708174
  4. John Freedman, MDSanta Rosa, CA 954031558445544
  5. Kofi Inkabi, M.D.Santa Rosa, CA 954031477887024
  6. Donald Jereb, MDSanta Rosa, CA 954031821172818
  7. Clare Pearson, M.D.Santa Rosa, CA 954031720358823
  8. Leigh Pederson, MDSanta Rosa, CA 954031891879870

Common questions

What is Manuel G. Diaz, MD's NPI number?

Manuel G. Diaz, MD's National Provider Identifier (NPI) is 1922183243, issued on Oct 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Manuel G. Diaz, MD located?

The NPPES record lists a practice address at 401 Bicentennial Way, Santa Rosa, CA, 95403. Phone: (707) 571-4000. Providers update this record themselves, so call before visiting.

How can I verify Manuel G. Diaz, MD's license?

NPPES lists California license number G54412, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

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.