Jason Cowen, PA
Physician Assistant · Rancho Cucamonga, CA
Jason Cowen, PA is a physician assistant with a practice address in Rancho Cucamonga, California, and NPI 1245056688, issued on Dec 2, 2024. Check the license (California 65813, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jason Cowen
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 65813 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8805 Haven Ave Ste 100, Rancho Cucamonga, CA 91730
- Phone
- (909) 912-1750
- Enumerated
- Dec 2, 2024
- Record last updated
- Feb 11, 2025
- Medicare enrollment
- Enrolled (PECOS I20250226000641); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 8805 Haven Ave Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charly Nguyen, DPTPhysical Therapist1679339170
Verify Jason Cowen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 65813Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- San Bernardino Medical Orthopaedic Group IncRedlands, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jason Cowen among 14,451 physician assistant records in California
Jason Cowen, PA 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 2024, is newer than 87% of them.
- NPI issued2024 · 87% of these records are older, 7% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2024 · median 2018 among the 7,214 with a school on file
- Record last updated2025 · 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).
59 physician assistant records list a practice address in Rancho Cucamonga
They are 59 of the 4,579 NPPES records with a practice address in Rancho Cucamonga, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Rancho Cucamonga → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Tricia Borchers, PHYSICIAN ASSISTANTRancho Cucamonga, CA 917301407908841
- Angela Cochran, PARancho Cucamonga, CA 917301316155310
- Natalie Dao, PA-CRancho Cucamonga, CA 917301942631429
- Miechelle Delarosa, PARancho Cucamonga, CA 917301568779528
- Daniel Hestehauge, P.ARancho Cucamonga, CA 917301427485762
- David Kirshbaum, PA-CRancho Cucamonga, CA 917301801855861
- Judeth McKindley, P.A.C.Rancho Cucamonga, CA 917301346437977
- Sunyoung Park, LAC.Rancho Cucamonga, CA 917301114080801
Common questions
What is Jason Cowen, PA's NPI number?
Jason Cowen, PA's National Provider Identifier (NPI) is 1245056688, issued on Dec 2, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Jason Cowen, PA located?
The NPPES record lists a practice address at 8805 Haven Ave Ste 100, Rancho Cucamonga, CA, 91730. Phone: (909) 912-1750. Providers update this record themselves, so call before visiting.
How can I verify Jason Cowen, PA's license?
NPPES lists California license number 65813, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.