Summer Lyn Marcellus
Occupational Therapist · Gulfport, MS
Summer Lyn Marcellus is an occupational therapist with a practice address in Gulfport, Mississippi, and NPI 1154888592, issued on Feb 21, 2019. Check the license (Mississippi OT3621, as entered in NPPES) with the Mississippi board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Summer Lyn Marcellus
- Primary taxonomy
- Occupational Therapist 225X00000X
- License number
- OT3621 MS
Self-reported in NPPES; status is on the state search - Practice location
- 12261 Highway 49 Ste 1, Gulfport, MS 39503
- Phone
- (228) 265-7185
- Enumerated
- Feb 21, 2019
- Record last updated
- Feb 21, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (833) 219-5405
- Medicare enrollment
- Enrolled (PECOS I20190404002673); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 951 in Mississippi → Look up another NPI →
Also registered at 12261 Highway 49 Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Courtenay, MPTPhysical Therapist1124518444
- Deanna Garrard, PTPhysical Therapist1336714534
- Madison Lundy, DPTPhysical Therapist1144155953
- Raven Necaise, PT, DPTPhysical Therapist1124892583
- Georgia SalloumOccupational Therapist1255010252
- Maggie Smith, DPTPhysical Therapist1265903488
Verify Summer Lyn Marcellus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Mississippi board licenses this profession
Search for license OT3621Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Exceed Physical Therapy, LLCGulfport, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Summer Lyn Marcellus among 951 occupational therapist records in Mississippi
Summer Lyn Marcellus is one of 951 occupational therapist records with a practice address in Mississippi. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 66% of them.
- NPI issued2019 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 17% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2018 · median 2016 among the 179 with a school on file
- Record last updated2019 · 64% 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 Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 occupational therapist records list a practice address in Gulfport
They are 31 of the 2,030 NPPES records with a practice address in Gulfport, and 951 occupational therapist records in Mississippi.
All 951 in Mississippi → Every provider in Gulfport → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- Christine Ackerman, OTGulfport, MS 395031033415906
- Cory Brainard, OTGulfport, MS 395031144349135
- Courtney Broome, OTGulfport, MS 395031407014137
- Caitlyn Burgess, OTGulfport, MS 395031114448594
- Christina Cuevas, OTR/LGulfport, MS 395031811151319
- Sheryl Egan-Olaivar, OTGulfport, MS 395031962697458
- Catlin Green, OT/LGulfport, MS 395031598035867
- Lucia Jackson, LOT, CHTGulfport, MS 395031932579380
Common questions
What is Summer Lyn Marcellus's NPI number?
Summer Lyn Marcellus's National Provider Identifier (NPI) is 1154888592, issued on Feb 21, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Summer Lyn Marcellus located?
The NPPES record lists a practice address at 12261 Highway 49 Ste 1, Gulfport, MS, 39503. Phone: (228) 265-7185. Providers update this record themselves, so call before visiting.
How can I verify Summer Lyn Marcellus's license?
NPPES lists Mississippi license number OT3621, as entered by the provider. Search the Mississippi board that licenses this profession; the NPPES record confirms identity 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.