Mark D. Marilley, MD
NPI 1407852353ActiveIndividual· Internal Medicine, Gastroenterology· Stuart, FL
Internal Medicine, Gastroenterology (MD) with Baptist Health Medical Group Inc and 1 other group, practicing in Stuart, Florida. Medicare paid $4,355 for services to 24 patients in 2024. Phathom Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2025, $243.08 in all, mostly food and beverage. Lists Adventhealth Fish Memorial and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1407852353 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 24, 2005 |
| Last updated in NPPES | Jun 17, 2025 |
| Certified by provider | Jun 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | ME157995 | FL |
| Internal Medicine, Gastroenterology | 207RG0100X | DR.0067585 | CO |
| Internal Medicine, Gastroenterology | 207RG0100X | MD192722 | OR |
| Internal Medicine, Gastroenterology | 207RG0100X | 200700105 | NC |
| Internal Medicine, Gastroenterology | 207RG0100X | MD425171 | PA |
| Internal Medicine, Gastroenterology | 207RG0100X | 21764 | WV |
| Internal Medicine, Gastroenterology | 207RG0100X | 21216 | ND |
| Internal Medicine, Gastroenterology | 207RG0100X | 350085209 | GA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (FL); Practitioner - Gastroenterology (KY); Practitioner - Gastroenterology (MT); Practitioner - Gastroenterology (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 24 |
|---|---|
| Services billed | 46 across 16 procedure codes |
| Paid by Medicare | $4,355 |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Hospitalist |
Medical groups
- Baptist Health Medical Group IncMadison, IN · 2,472 clinicians
- Florida Hospital Physician Group IncTampa, FL · 979 clinicians
Hospital affiliations
- Adventhealth Fish MemorialOrange City, FL
- Adventhealth OcalaOcala, FL
- Baptist Health HardinElizabethtown, KY
- Eastern Idaho Regional Medical CenterIdaho Falls, ID
- HCA Florida Lawnwood HospitalFort Pierce, FL
Industry payments (Open Payments)
- 2025$243.08 · 2 payments from 2 companies
- 2024$97.92 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $123.11 | 1 |
| Genzyme Corporation | $119.97 | 1 |
What the 2025 payments were for
- Food and Beverage$243.08 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Stuart
- 1184951857
- 1972818714
- 1639337140
- 1255006730
- 1942498548
- 1912972647
- 1376864157
- 1669552717
- 1134449317
- 1346215712
- 1033323092
- 1679548309
All Internal Medicine, Gastroenterology providers in Florida →