Richard Gregory, MPSA, PA-C
Physician Assistant · Agoura Hills, CA
Richard Gregory, MPSA, PA-C is a physician assistant with a practice address in Agoura Hills, California, and NPI 1649496274, issued on Apr 18, 2007. Check the license (California 15519, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Richard Gregory
- Credential
- MPSA, PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 15519 CA
Self-reported in NPPES; status is on the state search - Practice location
- 29039 Hollow Oak CT, Agoura Hills, CA 91301
- Phone
- (818) 438-7882
- Enumerated
- Apr 18, 2007
- Record last updated
- Jan 16, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090223000559); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Richard Gregory in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 15519Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average physician assistant in 2024
568 Medicare Part D claims for 450 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Albuterol Sulfate Hfa83 claims
- Cephalexin48 claims
- Nitrofurantoin Mono-Macro48 claims
- Amoxicillin-Clavulanate Potass38 claims
- Amoxicillin35 claims
- Triamcinolone Acetonide32 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.
Bills Medicare through one group practice
- Exer Medical CorporationWestlake Village, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard Gregory among 14,451 physician assistant records in California
Richard Gregory, MPSA, 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 2007, is newer than 13% of them.
- NPI issued2007 · 13% of these records are older, 78% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2000 · median 2018 among the 7,214 with a school on file
- Record last updated2020 · 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
- Jane Hammond, PA-CAgoura Hills, CA 913011972614782
- Jason KopsteinAgoura Hills, CA 913011871143834
- 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 Richard Gregory, MPSA, PA-C's NPI number?
Richard Gregory, MPSA, PA-C's National Provider Identifier (NPI) is 1649496274, issued on Apr 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Richard Gregory, MPSA, PA-C located?
The NPPES record lists a practice address at 29039 Hollow Oak CT, Agoura Hills, CA, 91301. Phone: (818) 438-7882. Providers update this record themselves, so call before visiting.
How can I verify Richard Gregory, MPSA, PA-C's license?
NPPES lists California license number 15519, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Richard Gregory, MPSA, PA-C prescribe under Medicare Part D?
In 2024, Richard Gregory, MPSA, PA-C had 568 Medicare Part D claims for 450 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.