Joe Bret Hamm, PA-C
Physician Assistant · San Diego, CA
Joe Bret Hamm, PA-C is a physician assistant with a practice address in San Diego, California, and NPI 1588839393, issued on Apr 23, 2008. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joe Bret Hamm
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 13548 TX
Self-reported in NPPES; status is on the state search - Practice location
- 34800 Bob Wilson Dr, San Diego, CA 92134
- Phone
- (619) 524-9356
- Enumerated
- Apr 23, 2008
- Record last updated
- Jul 25, 2024
- Fax
- (619) 524-9207
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 34800 Bob Wilson Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joe Bret Hamm in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average physician assistant in 2024
150 Medicare Part D claims for 109 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Cephalexin30 claims
- Ibuprofen22 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): 89.6 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).
Joe Bret Hamm among 14,451 physician assistant records in California
Joe Bret Hamm, 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 2008, is newer than 22% of them.
- NPI issued2008 · 22% of these records are older, 75% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2024 · 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).
747 physician assistant records list a practice address in San Diego
They are 747 of the 52,937 NPPES records with a practice address in San Diego, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in San Diego → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Robert Ambach, P.A.San Diego, CA 921341437122686
- Kishla Askins, PA-CSan Diego, CA 921341659428621
- Joseph Buckner, PA-CSan Diego, CA 921341215909205
- Anna Concepcion, PA-CSan Diego, CA 921341386704823
- Vicki EnglishSan Diego, CA 921341962558627
- Alana Jorge, P.A.San Diego, CA 921341285739029
- Melissa Liwanag, PA-CSan Diego, CA 921341790937787
- Steven Noakes, PA-CSan Diego, CA 921341962603993
Common questions
What is Joe Bret Hamm, PA-C's NPI number?
Joe Bret Hamm, PA-C's National Provider Identifier (NPI) is 1588839393, issued on Apr 23, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Joe Bret Hamm, PA-C located?
The NPPES record lists a practice address at 34800 Bob Wilson Dr, San Diego, CA, 92134. Phone: (619) 524-9356. Providers update this record themselves, so call before visiting.
How can I verify Joe Bret Hamm, PA-C's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Joe Bret Hamm, PA-C prescribe under Medicare Part D?
In 2024, Joe Bret Hamm, PA-C had 150 Medicare Part D claims for 109 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Joe Bret Hamm, PA-C's MIPS final score?
The 2023 MIPS final score is 89.6 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.