Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Hiram Great Diaz Diaz, CRNA

Individual provider Critical Care Medicine Registered Nurse · NPI 1821600420

Dr. Hiram Great Diaz Diaz, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Anaheim, California. Qualified in 2023, 3 years ago. Practices with Coachella Valley Anesthesia a Professional Corporation, a 127-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
3
Licensed in
CA
In the registry since
2020
Specialties on file
2
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

7916 E Woodsboro Ave
Anaheim, CA 92807-2435
Phone: (949) 257-5734
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 95002190 (CA)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence 95066307 (CA)

Record details

NPI number1821600420
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorYes
NPI enumeratedAugust 17, 2020
Last updated in NPPESSeptember 20, 2023
Certification dateSeptember 20, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Coachella Valley Anesthesia A Professional Corporation — 127 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients83
Services billed 104 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Coachella Valley Anesthesia a Professional Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 127 clinicians in the practice; 12 are shown here.

Other providers in Anaheim