Mark Gary Buchanan, M.D.
NPI 1104825637ActiveIndividual· Urology· Charleston, SC
Urology (M.D.) in Charleston, South Carolina, trained at University of Tennessee, Hsc, College of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $650,672 for 1,718 claims, against $295,077 paid for services in 2024. Medtronic, Inc. was the largest of 24 companies reporting payments in 2025, $1,605 in all, mostly food and beverage.
Overview
| NPI | 1104825637 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 18, 2005 |
| Last updated in NPPES | Feb 17, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | 019842 | 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 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 - Urology (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,006 |
|---|---|
| Services billed | 8,458 across 99 procedure codes |
| Paid by Medicare | $295,077 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,718 · 3,576 30-day fills |
|---|---|
| Patients | 563 |
| Total drug cost | $650,672 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of Tennessee, Hsc, College of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Urology |
| Telehealth | Offers telehealth |
Medical group
- Lowcountry Urology Clinics, PACharleston, SC · 14 clinicians
Hospital affiliations
- Bon Secours-St Francis Xavier HospitalCharleston, SC
- Mount Pleasant HospitalMount Pleasant, SC
- Roper HospitalCharleston, SC
- Roper St Francis Hospital-Berkeley IncSummerville, SC
Industry payments (Open Payments)
- 2025$1,605 · 59 payments from 24 companies
- 2024$781.87 · 37 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $315.79 | 10 |
| Olympus America Inc. | $219.74 | 9 |
| Janssen Biotech, Inc. | $116.49 | 4 |
| Bioprotect Medical, Inc. | $93.23 | 2 |
| Pfizer Inc. | $87.01 | 3 |
What the 2025 payments were for
- Food and Beverage$1,570 · 58 payments
- Education$35.06 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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