Joseph T. McCormick, PA-C
Physician Assistant · Antioch, CA
Joseph T. McCormick, PA-C is a physician assistant with a practice address in Antioch, California, and NPI 1326347733, issued on Mar 24, 2011. Check the license (California PA21583, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joseph T. McCormick
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA21583 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3901 Lone Tree Way, Antioch, CA 94509
- Phone
- (925) 779-7200
- Enumerated
- Mar 24, 2011
- Record last updated
- Jan 13, 2022
- Medicare enrollment
- Enrolled (PECOS I20110818000234); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 3901 Lone Tree Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph T. McCormick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA21583Check 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
494 Medicare Part D claims for 205 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate136 claims
- Azelastine Hcl67 claims
- Famotidine48 claims
- Ipratropium Bromide43 claims
- Ofloxacin30 claims
- Pantoprazole Sodium30 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 IncRichmond, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph T. McCormick among 14,451 physician assistant records in California
Joseph T. McCormick, 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 2011, is newer than 30% of them.
- NPI issued2011 · 30% of these records are older, 67% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2011 · 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).
27 physician assistant records list a practice address in Antioch
They are 27 of the 2,184 NPPES records with a practice address in Antioch, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Antioch → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Anthony Ambrosino, P.A.Antioch, CA 945091558733451
- Rachel Baker, P.A.-CAntioch, CA 945091922271238
- Reynaldo Bulaon, P.A-CAntioch, CA 945091659396760
- Nicole Byars, P.A-CAntioch, CA 945091215052113
- Emily Choi, PA-CAntioch, CA 945091861944571
- Elizabeth Dacosta, P.A.-CAntioch, CA 945091861665739
- Michael Garcia, PA-CAntioch, CA 945091740567627
- Kathryn Hook, PA-CAntioch, CA 945091528450343
Common questions
What is Joseph T. McCormick, PA-C's NPI number?
Joseph T. McCormick, PA-C's National Provider Identifier (NPI) is 1326347733, issued on Mar 24, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Joseph T. McCormick, PA-C located?
The NPPES record lists a practice address at 3901 Lone Tree Way, Antioch, CA, 94509. Phone: (925) 779-7200. Providers update this record themselves, so call before visiting.
How can I verify Joseph T. McCormick, PA-C's license?
NPPES lists California license number PA21583, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Joseph T. McCormick, PA-C prescribe under Medicare Part D?
In 2024, Joseph T. McCormick, PA-C had 494 Medicare Part D claims for 205 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.