Jason Kopstein
Physician Assistant · Agoura Hills, CA
Jason Kopstein is a physician assistant with a practice address in Agoura Hills, California, and NPI 1871143834, issued on Sep 11, 2019. Check the license (California PA58749, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jason Kopstein
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA58749 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5825 Kanan RD Ste B, Agoura Hills, CA 91301
- Phone
- (818) 483-0775
- Enumerated
- Sep 11, 2019
- Record last updated
- Feb 15, 2022
- Medicare enrollment
- Enrolled (PECOS I20230630001614); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Jason Kopstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA58749Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average physician assistant in 2024
90 Medicare Part D claims for 75 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin16 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 44.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Scl Health Medical Group - Billings LLCBillings, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jason Kopstein among 14,451 physician assistant records in California
Jason Kopstein 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 2019, is newer than 56% of them.
- NPI issued2019 · 56% of these records are older, 38% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2020 · median 2018 among the 7,214 with a school on file
- Record last updated2022 · 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).
9 physician assistant records list a practice address in Agoura Hills
They are 9 of the 541 NPPES records with a practice address in Agoura Hills, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Agoura Hills → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Hanna Boparai, PA-CAgoura Hills, CA 913011083377006
- Jackson Fraser, PAAgoura Hills, CA 913011841540721
- Richard Gregory, MPSA, PA-CAgoura Hills, CA 913011649496274
- Jane Hammond, PA-CAgoura Hills, CA 913011972614782
- Donna NewmanCalabasas, CA 913011841825007
- Tana Richter, P.A.-CAgoura Hills, CA 913011043427420
- Marie-Claire Schillinger, PA-CAgoura Hills, CA 913011962184127
- Raquel SharafAgoura Hills, CA 913011598580342
Common questions
What is Jason Kopstein's NPI number?
Jason Kopstein's National Provider Identifier (NPI) is 1871143834, issued on Sep 11, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Jason Kopstein located?
The NPPES record lists a practice address at 5825 Kanan RD Ste B, Agoura Hills, CA, 91301. Phone: (818) 483-0775. Providers update this record themselves, so call before visiting.
How can I verify Jason Kopstein's license?
NPPES lists California license number PA58749, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Jason Kopstein prescribe under Medicare Part D?
In 2024, Jason Kopstein had 90 Medicare Part D claims for 75 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Jason Kopstein's MIPS final score?
The 2023 MIPS final score is 44.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.