NPPES file of Aug 9, 2026

Bradley K. Guion, PA-C

Physician Assistant · National City, CA

Bradley K. Guion, PA-C is a physician assistant with a practice address in National City, California, and NPI 1578195707, issued on Feb 5, 2020. Check the license (California 58536, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578195707
Name
Bradley K. Guion
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
58536 CA
Self-reported in NPPES; status is on the state search
Practice location
502 Euclid Ave Ste 204, National City, CA 91950
Phone
(619) 765-2684
Enumerated
Feb 5, 2020
Record last updated
Feb 22, 2022
Medicare enrollment
Enrolled (PECOS I20220525003053); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
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Also registered at 502 Euclid Ave Ste 204

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Brooke Blaser, PA-CPhysician Assistant1265903868
  2. Sheena Shah, PHYSICIAN ASSISTANTMedical Physician Assistant1528659984

Verify Bradley K. Guion 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 58536
    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.

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3% more Medicare Part D claims than the average physician assistant in 2024

853 Medicare Part D claims for 55 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Bradley Guion853
  2. Specialty average830

Most prescribed

  1. Trazodone Hcl60 claims
  2. Risperidone57 claims
  3. Benztropine Mesylate56 claims
  4. Quetiapine Fumarate54 claims
  5. Lurasidone Hcl53 claims
  6. Divalproex Sodium39 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.

Bills Medicare through one group practice

  1. Kab Medical Group IncChula Vista, CA

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

Bradley K. Guion among 14,451 physician assistant records in California

Bradley K. Guion, PA-C 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 2020, is newer than 62% of them.

  • NPI issued2020 · 62% of these records are older, 33% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2019 · 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).

17 physician assistant records list a practice address in National City

They are 17 of the 749 NPPES records with a practice address in National City, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Adam Afflalo, PA-CNational City, CA 919501962912568
  2. Ruth Aguilar-Wong, PA-CNational City, CA 919501699298190
  3. Michael Anantiyo, PANational City, CA 919501093304214
  4. Irene Arellano-Cruz, PA-CNational City, CA 919501164747515
  5. Brooke Blaser, PA-CNational City, CA 919501265903868
  6. Alexandra Chatfield, PA-CNational City, CA 919501215584628
  7. Vernon Clark, PANational City, CA 919501104910389
  8. Lisa Eilerman, P.A.National City, CA 919501801904362

Common questions

What is Bradley K. Guion, PA-C's NPI number?

Bradley K. Guion, PA-C's National Provider Identifier (NPI) is 1578195707, issued on Feb 5, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Bradley K. Guion, PA-C located?

The NPPES record lists a practice address at 502 Euclid Ave Ste 204, National City, CA, 91950. Phone: (619) 765-2684. Providers update this record themselves, so call before visiting.

How can I verify Bradley K. Guion, PA-C's license?

NPPES lists California license number 58536, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Bradley K. Guion, PA-C prescribe under Medicare Part D?

In 2024, Bradley K. Guion, PA-C had 853 Medicare Part D claims for 55 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.