Alexander Stempel
Physician Assistant · Madera, CA
Alexander Stempel is a physician assistant with a practice address in Madera, California, and NPI 1659764611, issued on Mar 13, 2015. Check the license (California 52363, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexander Stempel
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 52363 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1250 E Almond Ave, Madera, CA 93637
- Phone
- (559) 675-5555
- Enumerated
- Mar 13, 2015
- Record last updated
- Dec 22, 2023
- Medicare enrollment
- Enrolled (PECOS I20150513002044); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1250 E Almond Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paula Duclo, FNPFamily Nurse Practitioner1952382350
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Verify Alexander Stempel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 52363Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average physician assistant in 2024
236 Medicare Part D claims for 196 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass29 claims
- Cephalexin27 claims
- Prednisone21 claims
- Erythromycin17 claims
- Azithromycin16 claims
- Doxycycline Hyclate11 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): 73.6 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
- Sharp Rees-Stealy Medical Group IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Stempel among 14,451 physician assistant records in California
Alexander Stempel 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 2015, is newer than 41% of them.
- NPI issued2015 · 41% of these records are older, 56% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2014 · median 2018 among the 7,214 with a school on file
- Record last updated2023 · 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).
41 physician assistant records list a practice address in Madera
They are 41 of the 2,011 NPPES records with a practice address in Madera, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Madera → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Mikhail Alper, PAMadera, CA 936371588698112
- Eliezer AlvarezMadera, CA 936371023366515
- Morgan Demmers, PHYSICIAN ASSISTANTMadera, CA 936371871165696
- Douglas Howell, PA-CMadera, CA 936371003300179
- Shagufta Khan, PA-CMadera, CA 936371205101904
- Charles Mackey, PA-CMadera, CA 936371770789927
- Vishal Manhas, PA-CMadera, CA 936371871014605
- Itab NagiMadera, CA 936371699428730
Common questions
What is Alexander Stempel's NPI number?
Alexander Stempel's National Provider Identifier (NPI) is 1659764611, issued on Mar 13, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Stempel located?
The NPPES record lists a practice address at 1250 E Almond Ave, Madera, CA, 93637. Phone: (559) 675-5555. Providers update this record themselves, so call before visiting.
How can I verify Alexander Stempel's license?
NPPES lists California license number 52363, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Alexander Stempel prescribe under Medicare Part D?
In 2024, Alexander Stempel had 236 Medicare Part D claims for 196 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Alexander Stempel's MIPS final score?
The 2023 MIPS final score is 73.6 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.