Robert Vissing, MD
NPI 1457352395ActiveIndividual· Internal Medicine· Towson, MD
Internal Medicine (MD) in Towson, Maryland, trained at University of Maryland School of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $1,091,063 for 12,098 claims, against $285,044 paid for services in 2024. Corcept Therapeutics was the largest of 8 companies reporting payments in 2025, $606.26 in all, mostly food and beverage.
Overview
| NPI | 1457352395 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 2, 2005 |
| Last updated in NPPES | Nov 30, 2020 |
| Certified by provider | Nov 30, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D33897 | MD |
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 - Internal Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,043 |
|---|---|
| Services billed | 4,393 across 54 procedure codes |
| Paid by Medicare | $285,044 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,098 · 27,398 30-day fills |
|---|---|
| Patients | 974 |
| Total drug cost | $1,091,063 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Clinical Associates P APikesville, MD · 37 clinicians
Hospital affiliations
- Greater Baltimore Medical CenterBaltimore, MD
- Johns Hopkins Hospital, theBaltimore, MD
- Medstar Good Samaritan HospitalBaltimore, MD
- University of MD St Joseph Medical CenterTowson, MD
Other facilities
- Homecare Maryland, LLCHome health agency · Owings Mills, MD
- Medstar Health Home CareHome health agency · Baltimore, MD
- Stella Maris, Inc.Home health agency · Timonium, MD
Industry payments (Open Payments)
- 2025$606.26 · 8 payments from 8 companies
- 2024$715.00 · 8 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $124.98 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $120.59 | 1 |
| Astrazeneca Pharmaceuticals LP | $113.54 | 1 |
| Inspire Medical Systems, Inc. | $101.40 | 1 |
| Lilly USA, LLC | $96.66 | 1 |
What the 2025 payments were for
- Food and Beverage$606.26 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 170 internal medicine physicians in Towson · All internal medicine physicians in Maryland