NPPES file of Aug 9, 2026

Isabel Elodia Wilhelm, PA-C

Physician Assistant · Walnut, CA

Isabel Elodia Wilhelm, PA-C is a physician assistant with a practice address in Walnut, California, and NPI 1013368315, issued on Jun 28, 2016. Check the license (California 53549, 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
1013368315
Name
Isabel Elodia Wilhelm
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
53549 CA
Self-reported in NPPES; status is on the state search
Practice location
19524 Avenida Del Campo, Walnut, CA 91789
Phone
(909) 731-4761
Enumerated
Jun 28, 2016
Record last updated
Jul 20, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Isabel Elodia Wilhelm 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 53549
    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
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88% fewer Medicare Part D claims than the average physician assistant in 2024

103 Medicare Part D claims for 72 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Isabel Wilhelm103
  2. Specialty average830

Most prescribed

  1. Doxycycline Hyclate25 claims
  2. Cephalexin13 claims
  3. Amoxicillin-Clavulanate Potass12 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.

Isabel Elodia Wilhelm among 14,451 physician assistant records in California

Isabel Elodia Wilhelm, 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 2016, is newer than 44% of them.

  • NPI issued2016 · 44% of these records are older, 53% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • 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).

6 physician assistant records list a practice address in Walnut

They are 6 of the 317 NPPES records with a practice address in Walnut, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Alan CeraldeWalnut, CA 917891982062881
  2. Craig Chase, PA-CWalnut, CA 917891861699621
  3. Tammy ChenDiamond Bar, CA 917891285347377
  4. Sarah ChuDiamond Bar, CA 917891366197998
  5. Christiana De Jesus, PA-CWalnut, CA 917891003450214
  6. Luke Pata, PA-CWalnut, CA 917891558021097
  7. Dan Zeng, PA-CWalnut, CA 917891417270687
  8. Kimberly Amato, PACWest Covina, CA 917901477505014

Common questions

What is Isabel Elodia Wilhelm, PA-C's NPI number?

Isabel Elodia Wilhelm, PA-C's National Provider Identifier (NPI) is 1013368315, issued on Jun 28, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Isabel Elodia Wilhelm, PA-C located?

The NPPES record lists a practice address at 19524 Avenida Del Campo, Walnut, CA, 91789. Phone: (909) 731-4761. Providers update this record themselves, so call before visiting.

How can I verify Isabel Elodia Wilhelm, PA-C's license?

NPPES lists California license number 53549, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Isabel Elodia Wilhelm, PA-C prescribe under Medicare Part D?

In 2024, Isabel Elodia Wilhelm, PA-C had 103 Medicare Part D claims for 72 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.