Mark A. Gentz, D.O.
NPI 1033153465ActiveIndividual· Internal Medicine, Infectious Disease· Midlothian, VA
Internal Medicine, Infectious Disease (D.O.) in Midlothian, Virginia, trained at R Franklin University of Med & Sci/Chicago Medical School (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $910,554 for 967 claims, against $87,375 paid for services in 2024. Abbvie Inc. was the largest of 9 companies reporting payments in 2025, $1,070 in all, mostly food and beverage.
Overview
| NPI | 1033153465 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 15, 2006 |
| Last updated in NPPES | Jan 11, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 0102201823 | VA |
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 - Infectious Disease (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 337 |
|---|---|
| Services billed | 1,284 across 21 procedure codes |
| Paid by Medicare | $87,375 |
Part D prescriptions in 2024
| Prescriptions (claims) | 967 · 1,021 30-day fills |
|---|---|
| Patients | 151 |
| Total drug cost | $910,554 |
| Generic share | 63% of claims |
Education and affiliations
| Medical school | R Franklin University of Med & Sci/Chicago Medical School |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Infectious Disease |
Medical group
- Bon Secours Medical Group Richmond Primary Care LLCTappahannock, VA · 92 clinicians
Hospital affiliations
- Bon Secours St Francis Medical CenterMidlothian, VA
- Bon Secours St Marys HospitalRichmond, VA
- Cjw Medical CenterRichmond, VA
Other facilities
- Amedisys Home HealthHome health agency · Midlothian, VA
- At Home CareHome health agency · Mechanicsvlle, VA
- Commonwealth Home CareHome health agency · Richmond, VA
- James River Home Health AgencyHome health agency · Richmond, VA
Industry payments (Open Payments)
- 2025$1,070 · 37 payments from 9 companies
- 2024$435.05 · 11 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $394.92 | 4 |
| Melinta Therapeutics, LLC | $200.64 | 8 |
| Shionogi Inc | $196.83 | 18 |
| Organogenesis Inc. | $130.85 | 1 |
| Exact Sciences Corporation | $41.34 | 2 |
What the 2025 payments were for
- Food and Beverage$872.93 · 19 payments
- Education$196.83 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Infectious Disease providers in Midlothian
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