Mark P. Gremillion, OT
Occupational Therapist · Jennings, LA
Mark P. Gremillion, OT is an occupational therapist with a practice address in Jennings, Louisiana, and NPI 1134284557, issued on Dec 26, 2006. Check the license (Louisiana Z10533, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark P. Gremillion
- Credential
- OT
- Primary taxonomy
- Occupational Therapist 225X00000X
- License number
- Z10533 LA
Self-reported in NPPES; status is on the state search - Practice location
- 2002 Johnson St Ste 100, Jennings, LA 70546
- Phone
- (337) 824-4547
- Enumerated
- Dec 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (337) 824-4548
- Medicare enrollment
- Enrolled (PECOS I20081024000131); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 1,322 in Louisiana → Look up another NPI →
Also registered at 2002 Johnson St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natalie Camel, MCD, CCC-SLPSpeech-Language Pathologist1629657705
- Johnathan Daigle, PT, DPTPhysical Therapist1134059066
- Sidney Dartez, PT, DPTPhysical Therapist1013713692
- James Dorotics, LATAthletic Trainer1487212163
- Olivia Granger, COTAOccupational Therapy Assistant1912642950
- Douglas Greenman, PT, DPTPhysical Therapist1164935318
Verify Mark P. Gremillion in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
Search for license Z10533Check 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): 100 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 2 group practices
- Lemoine Therapy Services OF Cenla IncMansura, LA
- Therapy Center OF Jefferson Davis Parish, IncJennings, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark P. Gremillion among 1,322 occupational therapist records in Louisiana
Mark P. Gremillion, OT is one of 1,322 occupational therapist records with a practice address in Louisiana. 13% 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 under 1% of them.
- NPI issued2006 · under 1% of these records are older, 92% newer
- In a Medicare fileYes · 13% of these records are
- In the CMS Doctors and Clinicians fileYes · 15% of these records are
- Graduated1987 · median 2014 among the 199 with a school on file
- Record last updated2007 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 occupational therapist records list a practice address in Jennings
They are 18 of the 311 NPPES records with a practice address in Jennings, and 1,322 occupational therapist records in Louisiana.
All 1,322 in Louisiana → Every provider in Jennings → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- Marilyn Arabie, LOTRJennings, LA 705461477599181
- Victoria Baudoin, OTJennings, LA 705461255606935
- Delanie Carboni, OTJennings, LA 705461558544254
- Steven Coon, OTJennings, LA 705461184779902
- Baxter Deal, MPT, LOTRJennings, LA 705461679689566
- Danielle Keyser, OTRJennings, LA 705461053593376
- Mandy Persick, OTJennings, LA 705461538416524
- Anna Petry, MOT, OTR / LJennings, LA 705461811293517
Common questions
What is Mark P. Gremillion, OT's NPI number?
Mark P. Gremillion, OT's National Provider Identifier (NPI) is 1134284557, issued on Dec 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark P. Gremillion, OT located?
The NPPES record lists a practice address at 2002 Johnson St Ste 100, Jennings, LA, 70546. Phone: (337) 824-4547. Providers update this record themselves, so call before visiting.
How can I verify Mark P. Gremillion, OT's license?
NPPES lists Louisiana license number Z10533, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.
What is Mark P. Gremillion, OT's MIPS final score?
The 2023 MIPS final score is 100 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.