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

James Alan Berdahl, DNAP

Individual provider Certified Registered Nurse Anesthetist · NPI 1770200529

James Alan Berdahl, DNAP is registered under Certified Registered Nurse Anesthetist (CRNA) in Riverside, California. Qualified in 2023, 3 years ago. Practices with Darin Rentz DO PC, a 134-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
3
Licensed in
CA
In the registry since
2022
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Practice location Address checks out

4445 Magnolia Ave
Riverside, CA 92501-4199
Phone: (951) 788-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 15945 Bravery Ave, Chino, CA 91708-9441 — (507) 227-9799

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 95002206 (CA)

Record details

NPI number1770200529
Entity typeIndividual (Type 1)
GenderMale
Credentials DNAP
Sole proprietorNo
NPI enumeratedOctober 24, 2022
Last updated in NPPESSeptember 28, 2023
Certification dateSeptember 28, 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 Darin Rentz Do Pc — 134 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients12
Services billed 13 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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 Darin Rentz DO PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 134 clinicians in the practice; 12 are shown here.

Other providers in Riverside