Calvin Nguyen
Physician Assistant · San Bernardino, CA
Calvin Nguyen is a physician assistant with a practice address in San Bernardino, California, and NPI 1417432535, issued on Sep 25, 2018. Check the license (California 56004, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Calvin Nguyen
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 56004 CA
Self-reported in NPPES; status is on the state search - Practice location
- 401 E Highland Ave Ste 351, San Bernardino, CA 92404
- Phone
- (909) 475-8611
- Enumerated
- Sep 25, 2018
- Record last updated
- Jul 14, 2022
- Medicare enrollment
- Enrolled (PECOS I20190509001372); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 401 E Highland Ave Ste 351
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Calvin Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 56004Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average physician assistant in 2024
105 Medicare Part D claims for 56 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen23 claims
- Ibuprofen13 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: $189.78
5 payments; by number, the most common kind was food and beverage; the largest payer was Baxter Healthcare. 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
- Southern California Permanente Medical GroupOntario, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Calvin Nguyen among 14,451 physician assistant records in California
Calvin Nguyen 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 2018, is newer than 52% of them.
- NPI issued2018 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2018 · median 2018 among the 7,214 with a school on file
- Record last updated2022 · 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).
83 physician assistant records list a practice address in San Bernardino
They are 83 of the 5,645 NPPES records with a practice address in San Bernardino, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in San Bernardino → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Silvia Barr, PA-CSan Bernardino, CA 924041245602259
- Brian Benson, PA-CSan Bernardino, CA 924041700943107
- William Boyle, PA-CSan Bernardino, CA 924041124053715
- Raymond Cervenka, PASan Bernardino, CA 924041497965529
- Deval Dave, PASan Bernardino, CA 924041013220458
- William Inciso, PA-C, PHDSan Bernardino, CA 924041407050289
- Amber Janson, PA-CSan Bernardino, CA 924041750753141
- Billy Kim, PA-CSan Bernardino, CA 924041285973859
Common questions
What is Calvin Nguyen's NPI number?
Calvin Nguyen's National Provider Identifier (NPI) is 1417432535, issued on Sep 25, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Calvin Nguyen located?
The NPPES record lists a practice address at 401 E Highland Ave Ste 351, San Bernardino, CA, 92404. Phone: (909) 475-8611. Providers update this record themselves, so call before visiting.
How can I verify Calvin Nguyen's license?
NPPES lists California license number 56004, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Calvin Nguyen prescribe under Medicare Part D?
In 2024, Calvin Nguyen had 105 Medicare Part D claims for 56 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.