NPPES file of Aug 9, 2026

Hiram Great Diaz Diaz, CRNA

Certified Registered Nurse Anesthetist · Anaheim, CA

Hiram Great Diaz Diaz, CRNA is a certified registered nurse anesthetist with a practice address in Anaheim, California, and NPI 1821600420, issued on Aug 17, 2020. Check the license (California 95002190, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821600420
Name
Hiram Great Diaz Diaz
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
95002190 CA
95066307 CA
Self-reported in NPPES; status is on the state search
Practice location
7916 E Woodsboro Ave, Anaheim, CA 92807
Phone
(949) 257-5734
Enumerated
Aug 17, 2020
Record last updated
Sep 20, 2023
Medicare enrollment
Enrolled (PECOS I20231204000903); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest certified registered nurse anesthetist records → All 2,943 in California → Look up another NPI →

Verify Hiram Great Diaz 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 95002190    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through 2 group practices

  1. Coachella Valley Anesthesia A Professional CorporationBakersfield, CA
  2. Darin Rentz DO PCRiverside, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Hiram Great Diaz Diaz among 2,943 certified registered nurse anesthetist records in California

Hiram Great Diaz Diaz, CRNA is one of 2,943 certified registered nurse anesthetist records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 75% of them.

  • NPI issued2020 · 75% of these records are older, 21% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2023 · median 2016 among the 2,089 with a school on file
  • Record last updated2023 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in California

There are 2,943 certified registered nurse anesthetist records in California.

All 2,943 in California → Every provider in Anaheim → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. David Bohner, CRNAAnaheim, CA 928071982771739
  2. Carol Dilibero, CRNAAnaheim, CA 928071275692998
  3. John Fisher, CRNAAnaheim, CA 928071497822720
  4. Leandro Gatdula, CRNAAnaheim, CA 928071437218161
  5. Susan Heravi, CRNAAnaheim, CA 928071306905013
  6. Becky Ly, CRNAAnaheim, CA 928071699925032
  7. Edward Marthaler, CRNAAnaheim, CA 928071295802056
  8. Lee Michaels, CRNAAnaheim, CA 928071881710028

Common questions

What is Hiram Great Diaz Diaz, CRNA's NPI number?

Hiram Great Diaz Diaz, CRNA's National Provider Identifier (NPI) is 1821600420, issued on Aug 17, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Hiram Great Diaz Diaz, CRNA located?

The NPPES record lists a practice address at 7916 E Woodsboro Ave, Anaheim, CA, 92807. Phone: (949) 257-5734. Providers update this record themselves, so call before visiting.

How can I verify Hiram Great Diaz Diaz, CRNA's license?

NPPES lists California license number 95002190, 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.