John R. Simmons, M.D.
Anatomic Pathology & Clinical Pathology Physician · Baton Rouge, LA
John R. Simmons, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Baton Rouge, Louisiana, and NPI 1982664397, issued on Mar 28, 2006. Check the license (Louisiana MD.14896R, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John R. Simmons
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- MD.14896R LA
Self-reported in NPPES; status is on the state search - Practice location
- 5339 Odonavan, Baton Rouge, LA 70808
- Phone
- (225) 766-4999
- Enumerated
- Mar 28, 2006
- Record last updated
- Aug 13, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (225) 767-4702
- Medicaid ID
- 1148181 LA
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 224 in Louisiana → Look up another NPI →
Also registered at 5339 Odonavan
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David BoudreauxAnatomic Pathology & Clinical Pathology Physician1982664371
- Deborah CavalierAnatomic Pathology & Clinical Pathology Physician1558321984
- Edgar Cooper, M.DAnatomic Pathology & Clinical Pathology Physician1629039946
- Richard Graham, M.D.Anatomic Pathology & Clinical Pathology Physician1356302681
- Anthony Harton, M.D.Anatomic Pathology & Clinical Pathology Physician1699735688
- Alan Hulett, PHDAnatomic Pathology & Clinical Pathology Physician1669432654
Verify John R. Simmons in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license MD.14896RCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 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).
John R. Simmons among 224 anatomic pathology & clinical pathology physician records in Louisiana
John R. Simmons, M.D. is one of 224 anatomic pathology & clinical pathology physician records with a practice address in Louisiana. 69% 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 19% of them.
- NPI issued2006 · 19% of these records are older, 50% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2015 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Louisiana
There are 224 anatomic pathology & clinical pathology physician records in Louisiana.
All 224 in Louisiana → Every provider in Baton Rouge → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- David BoudreauxBaton Rouge, LA 708081982664371
- Deborah CavalierBaton Rouge, LA 708081558321984
- Edgar Cooper, M.DBaton Rouge, LA 708081629039946
- Zarius Drummond, MDBaton Rouge, LA 708081093733412
- Richard Graham, M.D.Baton Rouge, LA 708081356302681
- Anthony Harton, M.D.Baton Rouge, LA 708081699735688
- Alan Hulett, PHDBaton Rouge, LA 708081669432654
- Jennifer Jastram-Belcher, MDBaton Rouge, LA 708081134268170
Common questions
What is John R. Simmons, M.D.'s NPI number?
John R. Simmons, M.D.'s National Provider Identifier (NPI) is 1982664397, issued on Mar 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John R. Simmons, M.D. located?
The NPPES record lists a practice address at 5339 Odonavan, Baton Rouge, LA, 70808. Phone: (225) 766-4999. Providers update this record themselves, so call before visiting.
How can I verify John R. Simmons, M.D.'s license?
NPPES lists Louisiana license number MD.14896R, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is John R. Simmons, M.D.'s MIPS final score?
The 2023 MIPS final score is 74.5 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.