Regina Doi
Physician Assistant · Fresno, CA
Regina Doi is a physician assistant with a practice address in Fresno, California, and NPI 1427830686, issued on Oct 20, 2023. Check the license (California 63537, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Regina Doi
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 63537 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1630 E Herndon Ave, Fresno, CA 93720
- Phone
- (559) 256-5200
- Enumerated
- Oct 20, 2023
- Record last updated
- Oct 20, 2023
- Medicare enrollment
- Enrolled (PECOS I20231215002856); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1630 E Herndon Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gabriel Boyd, PASurgical Physician Assistant1922035989
- Todd BranerPhysician Assistant1932182193
Verify Regina Doi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 63537Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average physician assistant in 2024
254 Medicare Part D claims for 203 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 227 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen112 claims
- Tramadol Hcl61 claims
- Acetaminophen-Codeine33 claims
- Oxycodone-Acetaminophen19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $254.78
2 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Community Foundation Medical GroupFresno, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Regina Doi among 14,451 physician assistant records in California
Regina Doi is one of 14,451 physician assistant 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 2023, is newer than 80% of them.
- NPI issued2023 · 80% of these records are older, 13% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2023 · median 2018 among the 7,214 with a school on file
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
190 physician assistant records list a practice address in Fresno
They are 190 of the 19,440 NPPES records with a practice address in Fresno, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Fresno → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Joseph Bender, PA-CFresno, CA 937201538150545
- Todd BranerFresno, CA 937201932182193
- Phyllis Brown, PAFresno, CA 937201346283728
- Marissa Carrillo, PAFresno, CA 937201538148929
- William Dixon, PAFresno, CA 937201568478469
- Julie Duquette, PAFresno, CA 937201649253824
- Nicki Elms, P.A.Fresno, CA 937201629090295
- Arnold Escarcega, PA-CFresno, CA 937201124020706
Common questions
What is Regina Doi's NPI number?
Regina Doi's National Provider Identifier (NPI) is 1427830686, issued on Oct 20, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Regina Doi located?
The NPPES record lists a practice address at 1630 E Herndon Ave, Fresno, CA, 93720. Phone: (559) 256-5200. Providers update this record themselves, so call before visiting.
How can I verify Regina Doi's license?
NPPES lists California license number 63537, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Regina Doi prescribe under Medicare Part D?
In 2024, Regina Doi had 254 Medicare Part D claims for 203 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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.
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.