Alexis J. Stader, PA
Physician Assistant · Mission Hills, CA
Alexis J. Stader, PA is a physician assistant with a practice address in Mission Hills, California, and NPI 1891383931, issued on Jan 5, 2021. Check the license (California PA58925, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexis J. Stader
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA58925 CA
58925 CA
50.006568RX OH
Self-reported in NPPES; status is on the state search - Practice location
- 11333 N Sepulveda Blvd, Mission Hills, CA 91345
- Phone
- (818) 869-7200
- Enumerated
- Jan 5, 2021
- Record last updated
- Jul 24, 2024
- Medicare enrollment
- Enrolled (PECOS I20210728002795); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 11333 N Sepulveda Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Artur Alaverdyan, M.D.Internal Medicine Physician1982135208
- Gilberto Bultron, M.D.Pediatrics Physician1972705259
- Yiling Chen, PAPhysician Assistant1215429733
- Danyl Fakhrutdinov, PA-CPhysician Assistant1699318014
- Paniz Heidari, D.O.Obstetrics & Gynecology Physician1821435637
- Robin Klein, D.O.Emergency Medicine Physician1538303292
Verify Alexis J. Stader in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA58925Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average physician assistant in 2024
502 Medicare Part D claims for 352 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Doxycycline Hyclate55 claims
- Cephalexin43 claims
- Methylprednisolone41 claims
- Amoxicillin-Clavulanate Potass39 claims
- Cefdinir38 claims
- Azithromycin31 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): 84 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
- Providence Facey Medical FoundationMission Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexis J. Stader among 14,451 physician assistant records in California
Alexis J. Stader, 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 2021, is newer than 67% of them.
- NPI issued2021 · 67% of these records are older, 27% 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 updated2024 · 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).
25 physician assistant records list a practice address in Mission Hills
They are 25 of the 731 NPPES records with a practice address in Mission Hills, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Mission Hills → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Marian Ammari, P.A. CMission Hills, CA 913451821313875
- Yiling Chen, PAMission Hills, CA 913451215429733
- Pierce CorcoranMission Hills, CA 913451205319092
- Catherine Czubiak, PA-CMission Hills, CA 913451578884136
- Francisco De La Parra, P.A.-CMission Hills, CA 913451629472196
- Lisa Hayakawa, PA-CMission Hills, CA 913451023455706
- Joel Hernandez, PA-CMission Hills, CA 913451467813162
- Jennifer Kulesza, PAMission Hills, CA 913451801251087
Common questions
What is Alexis J. Stader, PA's NPI number?
Alexis J. Stader, PA's National Provider Identifier (NPI) is 1891383931, issued on Jan 5, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Alexis J. Stader, PA located?
The NPPES record lists a practice address at 11333 N Sepulveda Blvd, Mission Hills, CA, 91345. Phone: (818) 869-7200. Providers update this record themselves, so call before visiting.
How can I verify Alexis J. Stader, PA's license?
NPPES lists California license number PA58925, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Alexis J. Stader, PA prescribe under Medicare Part D?
In 2024, Alexis J. Stader, PA had 502 Medicare Part D claims for 352 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Alexis J. Stader, PA's MIPS final score?
The 2023 MIPS final score is 84 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.