Jonathan O'Brien, PA-C
Physician Assistant · North Highlands, CA
Jonathan O'Brien, PA-C is a physician assistant with a practice address in North Highlands, California, and NPI 1851872378, issued on Aug 23, 2018. Check the license (California 57662, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jonathan O'Brien
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 57662 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4815 Watt Ave, North Highlands, CA 95660
- Phone
- (916) 454-2345
- Enumerated
- Aug 23, 2018
- Record last updated
- May 27, 2022
- Medicare enrollment
- Enrolled (PECOS I20200330002114); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 4815 Watt Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jonathan O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 57662Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% more Medicare Part D claims than the average physician assistant in 2024
1,598 Medicare Part D claims for 124 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Duloxetine Hcl129 claims
- Quetiapine Fumarate95 claims
- Trazodone Hcl95 claims
- Mirtazapine88 claims
- Sertraline Hcl72 claims
- Aripiprazole71 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
- Elica Health CentersSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan O'Brien among 14,451 physician assistant records in California
Jonathan O'Brien, 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 2018, is newer than 52% of them.
- NPI issued2018 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2018 · 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).
8 physician assistant records list a practice address in North Highlands
They are 8 of the 242 NPPES records with a practice address in North Highlands, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in North Highlands → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Isabel Elias, PA-CNorth Highlands, CA 956601649596008
- Breiah Estes, PA-CNorth Highlands, CA 956601558183004
- Patrice Farquharson, PA-CNorth Highlands, CA 956601275373409
- Diana Hoang, PA-CNorth Highlands, CA 956601750039699
- Lamont Hunter, P.A.North Highlands, CA 956601205941853
- Margarita VincentNorth Highlands, CA 956601902440399
- Wa Vue, PA-CNorth Highlands, CA 956601326413675
- Gary Hamm, PA-CRoseville, CA 956611861430050
Common questions
What is Jonathan O'Brien, PA-C's NPI number?
Jonathan O'Brien, PA-C's National Provider Identifier (NPI) is 1851872378, issued on Aug 23, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan O'Brien, PA-C located?
The NPPES record lists a practice address at 4815 Watt Ave, North Highlands, CA, 95660. Phone: (916) 454-2345. Providers update this record themselves, so call before visiting.
How can I verify Jonathan O'Brien, PA-C's license?
NPPES lists California license number 57662, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Jonathan O'Brien, PA-C prescribe under Medicare Part D?
In 2024, Jonathan O'Brien, PA-C had 1,598 Medicare Part D claims for 124 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.