David Markus Diamant, MD
NPI 1003221623ActiveIndividual· Family Medicine· Greenville, SC
Family Medicine (MD) with Prisma Health University Medical Group, practicing in Greenville, South Carolina. Their prescriptions cost Medicare Part D more than their services did: $670,504 for 6,266 claims, against $111,944 paid for services in 2024. Pfizer Inc. was the largest of 14 companies reporting payments in 2025, $1,101 in all, mostly food and beverage. Lists Prisma Health Patewood Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1003221623 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 23, 2014 |
| Last updated in NPPES | Jun 7, 2021 |
| Certified by provider | Jun 7, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 36855 | SC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 228 |
|---|---|
| Services billed | 2,119 across 43 procedure codes |
| Paid by Medicare | $111,944 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,266 · 14,639 30-day fills |
|---|---|
| Patients | 456 |
| Total drug cost | $670,504 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Prisma Health University Medical GroupGreenville, SC · 2,493 clinicians
Hospital affiliations
- Prisma Health Patewood HospitalGreenville, SC
- Prisma Health Baptist Easley HospitalEasley, SC
- Prisma Health Greenville Memorial HospitalGreenville, SC
- Prisma Health Greer Memorial HospitalSpartanburg, SC
- St Francis-DowntownGreenville, SC
Other facilities
- Interim Healthcare of the UpstateHome health agency · Greenville, SC
- Prisma Health North Greenville LtachLong-term care hospital · Travelers Rest, SC
Industry payments (Open Payments)
- 2025$1,101 · 64 payments from 14 companies
- 2024$1,306 · 83 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $166.21 | 10 |
| Novo Nordisk Inc | $158.95 | 10 |
| Astrazeneca Pharmaceuticals LP | $136.97 | 10 |
| Abbott Laboratories | $104.15 | 5 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $82.61 | 5 |
What the 2025 payments were for
- Food and Beverage$1,101 · 64 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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