Keith A. Jeffrey, PA-C
Physician Assistant · Fremont, CA
Keith A. Jeffrey, PA-C is a physician assistant with a practice address in Fremont, California, and NPI 1164461745, issued on Jun 6, 2006. Check the license (California PA16317, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Keith A. Jeffrey
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA16317 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2000 Mowry Ave, Fremont, CA 94538
- Phone
- (510) 818-7200
- Enumerated
- Jun 6, 2006
- Record last updated
- Jan 4, 2022
- Fax
- (510) 742-9334
- Medicare enrollment
- Enrolled (PECOS I20061214000197); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 2000 Mowry Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nivek Amin, MDAnesthesiology Physician1518288125
- Harry Andrews, MDEmergency Medicine Physician1295865426
- Sophia Antoun, PA-CPhysician Assistant1205513645
Verify Keith A. Jeffrey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA16317Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average physician assistant in 2024
508 Medicare Part D claims for 140 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. 147 claims were for opioids.
Most prescribed
- Oxycodone Hcl116 claims
- Ondansetron Odt99 claims
- Naloxone Hcl85 claims
- Meloxicam64 claims
- Omeprazole57 claims
- Hydrocodone-Acetaminophen24 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
- Permanente Medical Group IncStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Keith A. Jeffrey among 14,451 physician assistant records in California
Keith A. Jeffrey, 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 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2001 · 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).
78 physician assistant records list a practice address in Fremont
They are 78 of the 4,749 NPPES records with a practice address in Fremont, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Fremont → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jia Afnan, PAFremont, CA 945381376763698
- Jeffrey Cooper, PA-CFremont, CA 945381639239205
- Karen Garn, P.A.Fremont, CA 945381538168067
- Tammi Groom, PA-CFremont, CA 945381952472151
- Kristi Larock, PAFremont, CA 945381255317350
- Meagan Nguyen, P.A.Fremont, CA 945381639181514
- Judith Pierre, MS, RD, CDEFremont, CA 945381932257490
- Niala Saeed, PA-CFremont, CA 945381619065968
Common questions
What is Keith A. Jeffrey, PA-C's NPI number?
Keith A. Jeffrey, PA-C's National Provider Identifier (NPI) is 1164461745, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Keith A. Jeffrey, PA-C located?
The NPPES record lists a practice address at 2000 Mowry Ave, Fremont, CA, 94538. Phone: (510) 818-7200. Providers update this record themselves, so call before visiting.
How can I verify Keith A. Jeffrey, PA-C's license?
NPPES lists California license number PA16317, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Keith A. Jeffrey, PA-C prescribe under Medicare Part D?
In 2024, Keith A. Jeffrey, PA-C had 508 Medicare Part D claims for 140 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.