Mark Shermer, MD
NPI 1144306366ActiveIndividual· Internal Medicine, Nephrology· Memphis, TN
Internal Medicine, Nephrology (MD) with Mark Shermer, M.D.,p.C., practicing in Memphis, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $637,070 for 1,362 claims, against $186,338 paid for services in 2024. Fresenius USA Marketing, Inc. was the largest of 4 companies reporting payments in 2025, $68.32 in all, mostly food and beverage. Lists Baptist Memorial Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1144306366 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 31, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD0000029065 | TN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 449 |
|---|---|
| Services billed | 2,208 across 13 procedure codes |
| Paid by Medicare | $186,338 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,362 · 2,804 30-day fills |
|---|---|
| Patients | 232 |
| Total drug cost | $637,070 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Mark Shermer, M.D.,p.C.Memphis, TN · 3 clinicians
Hospital affiliations
- Baptist Memorial HospitalMemphis, TN
- Methodist Healthcare - Olive Branch HospitalOlive Branch, MS
- Methodist Hospitals of MemphisMemphis, TN
- Saint Francis Bartlett Medical CenterBartlett, TN
- St Francis HospitalMemphis, TN
Other facilities
- Fkc Community DialysisDialysis facility · Memphis, TN
- Fmc BartlettDialysis facility · Memphis, TN
- Fmc Central MemphisDialysis facility · Memphis, TN
- Fmc East MemphisDialysis facility · Memphis, TN
Industry payments (Open Payments)
- 2025$68.32 · 5 payments from 4 companies
- 2024$130.81 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Fresenius USA Marketing, Inc. | $24.79 | 1 |
| Cormedix Inc. | $21.19 | 1 |
| Otsuka America Pharmaceutical, Inc. | $18.30 | 1 |
| Travere Therapeutics, Inc. | $4.04 | 2 |
What the 2025 payments were for
- Food and Beverage$64.28 · 3 payments
- Education$4.04 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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