Joseph L. Halphen, PAC
Physician Assistant · Baton Rouge, LA
Joseph L. Halphen, PAC is a physician assistant with a practice address in Baton Rouge, Louisiana, and NPI 1336336668, issued on Oct 1, 2007. Check the license (Louisiana PA200130, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joseph L. Halphen
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA200130 LA
Self-reported in NPPES; status is on the state search - Practice location
- 7301 Hennessy Blvd, Baton Rouge, LA 70808
- Phone
- (225) 766-0050
- Enumerated
- Oct 1, 2007
- Record last updated
- Feb 23, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (225) 766-1499
- Medicaid ID
- 1329959 LA
- Medicare enrollment
- Enrolled (PECOS I20090216000348); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,556 in Louisiana → Look up another NPI →
Also registered at 7301 Hennessy Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tina Creekmore, M.D.Pediatric Orthopaedic Surgery Physician1942410980
- Dana Degravelle, PA-CPhysician Assistant1235159526
- Jason Ghahramani, PACPhysician Assistant1396732400
- Thomas Guidruz, DPTPhysical Therapist1063626489
Verify Joseph L. Halphen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
Search for license PA200130Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average physician assistant in 2024
1,071 Medicare Part D claims for 274 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 77 claims were for opioids.
Most prescribed
- Celecoxib243 claims
- Gabapentin141 claims
- Prednisone127 claims
- Methocarbamol90 claims
- Nabumetone87 claims
- Meloxicam78 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): 54.4 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).
Bills Medicare through one group practice
- Ochsner Clinic LLCRaceland, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph L. Halphen among 1,556 physician assistant records in Louisiana
Joseph L. Halphen, PAC is one of 1,556 physician assistant records with a practice address in Louisiana. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 9% of them.
- NPI issued2007 · 9% of these records are older, 87% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2007 · median 2018 among the 1,031 with a school on file
- Record last updated2011 · 41% 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 Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
327 physician assistant records list a practice address in Baton Rouge
They are 327 of the 12,526 NPPES records with a practice address in Baton Rouge, and 1,556 physician assistant records in Louisiana.
All 1,556 in Louisiana → Every provider in Baton Rouge → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kevin Beall, PA-CBaton Rouge, LA 708081811923337
- Katey Bergeron, PA-CBaton Rouge, LA 708081538366828
- Dana Degravelle, PA-CBaton Rouge, LA 708081235159526
- Nicole Dufrechou, PA-CBaton Rouge, LA 708081720123078
- Donna Foster, PABaton Rouge, LA 708081093717266
- Jason Ghahramani, PACBaton Rouge, LA 708081396732400
- Christa Henderson, PA-CBaton Rouge, LA 708081942270517
- Amanda Kuber, PA-CBaton Rouge, LA 708081710166715
Common questions
What is Joseph L. Halphen, PAC's NPI number?
Joseph L. Halphen, PAC's National Provider Identifier (NPI) is 1336336668, issued on Oct 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Joseph L. Halphen, PAC located?
The NPPES record lists a practice address at 7301 Hennessy Blvd, Baton Rouge, LA, 70808. Phone: (225) 766-0050. Providers update this record themselves, so call before visiting.
How can I verify Joseph L. Halphen, PAC's license?
NPPES lists Louisiana license number PA200130, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.
How much does Joseph L. Halphen, PAC prescribe under Medicare Part D?
In 2024, Joseph L. Halphen, PAC had 1,071 Medicare Part D claims for 274 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Joseph L. Halphen, PAC's MIPS final score?
The 2023 MIPS final score is 54.4 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.