Jonathan Jeremy Obrien, PA-C
Physician Assistant · Phoenix, AZ
Jonathan Jeremy Obrien, PA-C is a physician assistant with a practice address in Phoenix, Arizona, and NPI 1639880644, issued on Dec 9, 2022. Check the license (Arizona 9959, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jonathan Jeremy Obrien
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 9959 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 635 E Baseline RD, Phoenix, AZ 85042
- Phone
- (602) 243-7277
- Enumerated
- Dec 9, 2022
- Record last updated
- Sep 28, 2023
- Medicare enrollment
- Enrolled (PECOS I20231206001338); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,666 in Arizona → Look up another NPI →
Also registered at 635 E Baseline RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Grace Aksamit, PA-CPhysician Assistant1477277226
- Donette Alexis, CLINICALPSYCHOLOGISTClinical Psychologist1437308277
- Jennie Altman, RDRegistered Dietitian1003267485
- Alice Antonescu, M.D.Pediatrics Physician1801861315
- Vesna Babanovska, MS RDNRegistered Dietitian1376065904
- Tamara Baca, RDH MPHDental Hygienist1689125122
Verify Jonathan Jeremy Obrien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 9959Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average physician assistant in 2024
2,853 Medicare Part D claims for 374 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 25 claims were for opioids.
Most prescribed
- Amlodipine Besylate188 claims
- Lisinopril186 claims
- Atorvastatin Calcium180 claims
- Losartan Potassium122 claims
- Metformin Hcl109 claims
- Levothyroxine Sodium103 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 2 group practices
- Good Health Medical PLLCGilbert, AZ
- Mountain Park Health CenterPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Jeremy Obrien among 3,666 physician assistant records in Arizona
Jonathan Jeremy Obrien, PA-C is one of 3,666 physician assistant records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 70% of them.
- NPI issued2022 · 70% of these records are older, 23% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2023 · median 2018 among the 2,207 with a school on file
- Record last updated2023 · 35% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
923 physician assistant records list a practice address in Phoenix
They are 923 of the 31,399 NPPES records with a practice address in Phoenix, and 3,666 physician assistant records in Arizona.
All 3,666 in Arizona → Every provider in Phoenix → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Grace Aksamit, PA-CPhoenix, AZ 850421477277226
- Tanner Cook, PA-CPhoenix, AZ 850421629545579
- Carli EndsleyPhoenix, AZ 850421972319671
- Malin Ferre, PA-CPhoenix, AZ 850421356041743
- Octalina Francois, PHYSICIAN ASSISTANTPhoenix, AZ 850421053958991
- Rachel Hamilton, PA-CPhoenix, AZ 850421629708565
- Erika Henderson, PA-CPhoenix, AZ 850421538823992
- Allison Manweiler, PA-CPhoenix, AZ 850421578453742
Common questions
What is Jonathan Jeremy Obrien, PA-C's NPI number?
Jonathan Jeremy Obrien, PA-C's National Provider Identifier (NPI) is 1639880644, issued on Dec 9, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Jeremy Obrien, PA-C located?
The NPPES record lists a practice address at 635 E Baseline RD, Phoenix, AZ, 85042. Phone: (602) 243-7277. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Jeremy Obrien, PA-C's license?
NPPES lists Arizona license number 9959, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Jonathan Jeremy Obrien, PA-C prescribe under Medicare Part D?
In 2024, Jonathan Jeremy Obrien, PA-C had 2,853 Medicare Part D claims for 374 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.