Jennifer Phemister, M.D.
NPI 1598008542ActiveIndividual· Internal Medicine, Gastroenterology· Maryville, TN
Internal Medicine, Gastroenterology (M.D.) in Maryville, Tennessee, trained at East Tennessee State University Quillen College of Medicine (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $86,384 for 141 claims, against $46,558 paid for services in 2024. Janssen Biotech, Inc. was the largest of 7 companies reporting payments in 2025, $282.94 in all, mostly food and beverage.
Overview
| NPI | 1598008542 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 28, 2013 |
| Last updated in NPPES | Aug 7, 2024 |
| Certified by provider | Aug 7, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 52396 | TN |
| Internal Medicine, Gastroenterology | 207RG0100X | 40908 | SC |
| Hospitalist | 208M00000X | MD0000052396 | TN |
| Internal Medicine | 207R00000X | 52396 | TN |
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 (MN); Practitioner - Gastroenterology (OH); Practitioner - Gastroenterology (OK); Practitioner - Gastroenterology (SC); Practitioner - Gastroenterology (TN); Practitioner - Internal Medicine (TN); Practitioner - Hospitalist (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 223 |
|---|---|
| Services billed | 513 across 37 procedure codes |
| Paid by Medicare | $46,558 |
Part D prescriptions in 2024
| Prescriptions (claims) | 141 · 209 30-day fills |
|---|---|
| Patients | 74 |
| Total drug cost | $86,384 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | East Tennessee State University Quillen College of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Gastroenterology |
Medical groups
- Partners Physician GroupAkron, OH · 413 clinicians
- McLeod Regional Medical Center of the Pee Dee IncMyrtle Beach, SC · 406 clinicians
- St. Luke's Hospital of DuluthDuluth, MN · 405 clinicians
Hospital affiliations
- Akron General Medical CenterAkron, OH
- McLeod Regional Medical Center-Pee DeeFlorence, SC
- Medina HospitalMedina, OH
- St Lukes HospitalDuluth, MN
Industry payments (Open Payments)
- 2025$282.94 · 16 payments from 7 companies
- 2024$495.09 · 28 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $138.05 | 9 |
| Neuraxis, Inc. | $35.82 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $35.64 | 2 |
| Aimmune Therapeutics, Inc. | $22.15 | 1 |
| Intercept Pharmaceuticals, Inc. | $21.49 | 1 |
What the 2025 payments were for
- Food and Beverage$282.94 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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