NPPES file of Aug 9, 2026

Kristi Jo Diehl, PA-C

Medical Physician Assistant · Chino, CA

Kristi Jo Diehl, PA-C is a medical physician assistant with a practice address in Chino, California, and NPI 1417080052, issued on Mar 13, 2007. Check the license (California PA18019, 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
1417080052
Name
Kristi Jo Diehl
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA18019 CA
Self-reported in NPPES; status is on the state search
Practice location
15361 Central Ave, Chino, CA 91710
Phone
(909) 393-7171
Enumerated
Mar 13, 2007
Record last updated
Jan 10, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(909) 393-7676
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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Also registered at 15361 Central Ave

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

  1. Sarah DetorresPhysician Assistant1720411275
  2. Cynthia Moreno, D.O.Family Medicine Physician1053394817
  3. Kathryn Rodrigues, PA-CPhysician Assistant1598349508
  4. Elvia Sandhu, P.A.Physician Assistant1912280173

Verify Kristi Jo Diehl 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 PA18019
    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

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58% more Medicare Part D claims than the average medical physician assistant in 2024

1,813 Medicare Part D claims for 263 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 76 claims were for opioids.

  1. Kristi Diehl1,813
  2. Specialty average1,148

Most prescribed

  1. Losartan Potassium110 claims
  2. Atorvastatin Calcium102 claims
  3. Levothyroxine Sodium58 claims
  4. Amlodipine Besylate48 claims
  5. Albuterol Sulfate Hfa47 claims
  6. Hydrocodone-Acetaminophen46 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.

Kristi Jo Diehl among 3,376 medical physician assistant records in California

Kristi Jo Diehl, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 20% of them.

  • NPI issued2007 · 20% of these records are older, 68% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 40% of these records are
  • Record last updated2017 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in California

There are 3,376 medical physician assistant records in California.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Kenneth Alexander, PAChino, CA 917101174506828
  2. Caryn Axtell-Kelly, P.A.-CChino, CA 917101700815958
  3. Sean Coleman, PA-CChino, CA 917101689860082
  4. Adam Elevario, PA-CChino, CA 917101356884639
  5. Neeru Gaetano, PAChino, CA 917101003154428
  6. Stephen Harvey, P.A.-CChino, CA 917101194753426
  7. Danielle Martinez, PA-CChino, CA 917101679024426
  8. Heather Sykes, MSPA-CChino, CA 917101952730061

Common questions

What is Kristi Jo Diehl, PA-C's NPI number?

Kristi Jo Diehl, PA-C's National Provider Identifier (NPI) is 1417080052, issued on Mar 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kristi Jo Diehl, PA-C located?

The NPPES record lists a practice address at 15361 Central Ave, Chino, CA, 91710. Phone: (909) 393-7171. Providers update this record themselves, so call before visiting.

How can I verify Kristi Jo Diehl, PA-C's license?

NPPES lists California license number PA18019, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Kristi Jo Diehl, PA-C prescribe under Medicare Part D?

In 2024, Kristi Jo Diehl, PA-C had 1,813 Medicare Part D claims for 263 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.