NPPES file of Aug 9, 2026

Alexis S. Holverson, PA-C

Physician Assistant · Claremont, CA

Alexis S. Holverson, PA-C is a physician assistant with a practice address in Claremont, California, and NPI 1366929887, issued on Jul 26, 2018. Check the license 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
1366929887
Name
Alexis S. Holverson
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
Practice location
1601 Monte Vista Ave Ste 190, Claremont, CA 91711
Phone
(909) 865-9501
Enumerated
Jul 26, 2018
Record last updated
Dec 30, 2024
Fax
(909) 469-2119
Medicaid ID
1366929887 CA
Medicare enrollment
Enrolled (PECOS I20181016003111); accepts Medicare assignment
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 1601 Monte Vista Ave Ste 190

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

  1. Bachar Ali, D.O.Family Medicine Physician1902358575
  2. Monique Burleigh Sanchez-Castro, M.D.Family Medicine Physician1205247855
  3. Javier Chang, M.D.Family Medicine Physician1558565366
  4. Nicholas ChiangPhysician Assistant1245729391
  5. Darren Favela, PA-CPhysician Assistant1265164644
  6. Jennifer Guerra, MSPA-CPhysician Assistant1831425875

Verify Alexis S. Holverson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
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93% fewer Medicare Part D claims than the average physician assistant in 2024

59 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. 38 claims were for opioids.

  1. Alexis Holverson59
  2. Specialty average830

Most prescribed

  1. Acetaminophen-Codeine36 claims
  2. Diazepam17 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: $117.78

5 payments; by number, the most common kind was food and beverage; the largest payer was Organogenesis Inc. 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.

  1. Alexis Holverson$117.78
  2. Specialty average$841.65

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

  1. Southern California Permanente Medical GroupAnaheim, CA

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

Alexis S. Holverson among 14,451 physician assistant records in California

Alexis S. Holverson, 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 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 updated2024 · 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).

31 physician assistant records list a practice address in Claremont

They are 31 of the 800 NPPES records with a practice address in Claremont, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Jeanette AberinClaremont, CA 917111285187641
  2. Thuy BachClaremont, CA 917111912443086
  3. Kathleen Bianco, PA-CClaremont, CA 917111851583553
  4. Cristina Cadena, PA-CClaremont, CA 917111942733514
  5. Robyn Dettmar, PAClaremont, CA 917111417951096
  6. Jennifer Guerra, MSPA-CClaremont, CA 917111831425875
  7. Roy Guizado, P.A.-C.Claremont, CA 917111023129293
  8. Rachel Hechanova, PA-CClaremont, CA 917111740661586

Common questions

What is Alexis S. Holverson, PA-C's NPI number?

Alexis S. Holverson, PA-C's National Provider Identifier (NPI) is 1366929887, issued on Jul 26, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Alexis S. Holverson, PA-C located?

The NPPES record lists a practice address at 1601 Monte Vista Ave Ste 190, Claremont, CA, 91711. Phone: (909) 865-9501. Providers update this record themselves, so call before visiting.

How can I verify Alexis S. Holverson, PA-C's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Alexis S. Holverson, PA-C prescribe under Medicare Part D?

In 2024, Alexis S. Holverson, PA-C had 59 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.