NPPES file of Aug 9, 2026

David Wright Kowallis, P.A.

Medical Physician Assistant · Temecula, CA

David Wright Kowallis, P.A. is a medical physician assistant with a practice address in Temecula, California, and NPI 1982849600, issued on Dec 9, 2008. Check the license (California 20053, 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
1982849600
Name
David Wright Kowallis
Credential
P.A.
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
20053 CA
Self-reported in NPPES; status is on the state search
Practice location
41715 Winchester RD, Temecula, CA 92590
Phone
(951) 308-4451
Enumerated
Dec 9, 2008
Record last updated
Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090210000469); 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 41715 Winchester RD

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

  1. Carlos Ayon Martinez, M.D.Family Medicine Physician1154583128
  2. Shannon Belcher, FNP-CFamily Nurse Practitioner1013753110
  3. David Bucher, MDFamily Medicine Physician1790735033
  4. Norberto Carlos, LCSWClinical Social Worker1275622672
  5. Stephen Caso, PA-CPhysician Assistant1083916985
  6. Caroline Dimarucot, M.D.Pediatrics Physician1962673897

Verify David Wright Kowallis 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 20053
    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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81% fewer Medicare Part D claims than the average medical physician assistant in 2024

215 Medicare Part D claims for 71 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 66 claims were for opioids.

  1. David Kowallis215
  2. Specialty average1,148

Most prescribed

  1. Oxycodone Hcl57 claims
  2. Ondansetron Odt56 claims
  3. Naloxone Hcl44 claims
  4. Meloxicam37 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: $24.67

1 payment: food and beverage; the largest payer was Zimmer Biomet Holdings, Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Kowallis$24.67
  2. Specialty average$1,055.00

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 GroupRiverside, CA

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

David Wright Kowallis among 3,376 medical physician assistant records in California

David Wright Kowallis, P.A. 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 2008, is newer than 32% of them.

  • NPI issued2008 · 32% of these records are older, 62% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2008 · median 2012 among the 1,347 with a school on file
  • Record last updated2021 · 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. Steven Belknap, PA-CTemecula, CA 925901750353512
  2. Kerry Erling, PATemecula, CA 925901144452160
  3. Ryan Heitman, PA-CTemecula, CA 925901609244714
  4. Briana Jimenez, P.A.Temecula, CA 925901356731335
  5. Kassandra Macpherson, PATemecula, CA 925901487924510
  6. Robert McDaniel, PATemecula, CA 925901275901399
  7. Erika Mora, PA-CTemecula, CA 925901982996328
  8. Ricardo Rivas, PA-CTemecula, CA 925901437581774

Common questions

What is David Wright Kowallis, P.A.'s NPI number?

David Wright Kowallis, P.A.'s National Provider Identifier (NPI) is 1982849600, issued on Dec 9, 2008. An NPI identifies a provider in billing; it is not a license.

Where is David Wright Kowallis, P.A. located?

The NPPES record lists a practice address at 41715 Winchester RD, Temecula, CA, 92590. Phone: (951) 308-4451. Providers update this record themselves, so call before visiting.

How can I verify David Wright Kowallis, P.A.'s license?

NPPES lists California license number 20053, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does David Wright Kowallis, P.A. prescribe under Medicare Part D?

In 2024, David Wright Kowallis, P.A. had 215 Medicare Part D claims for 71 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.