Mark Lawrence Welch, M.D.
NPI 1619943644ActiveIndividual· Dermatology, MOHS-Micrographic Surgery· Bethesda, MD
Dermatology, MOHS-Micrographic Surgery (M.D.) in Bethesda, Maryland, trained at New York Medical College (class of 1986). Mostly services rather than prescriptions: Medicare paid $507,588 for 486 patients in 2024, with only 34 Part D claims. Ucb, Inc. reported $441.52 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1619943644 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 28, 2006 |
| Last updated in NPPES | Aug 8, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology, MOHS-Micrographic Surgery Primary | 207ND0101X | D51120 | MD |
| Dermatology, MOHS-Micrographic Surgery | 207ND0101X | 101058507 | 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 - Micrographic Dermatologic Surgery (Mds) (DC); Practitioner - Micrographic Dermatologic Surgery (Mds) (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 486 |
|---|---|
| Services billed | 1,533 across 77 procedure codes |
| Paid by Medicare | $507,588 |
Part D prescriptions in 2024
| Prescriptions (claims) | 34 · 35 30-day fills |
|---|---|
| Patients | 32 |
| Total drug cost | $582.96 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Micrographic Dermatologic Surgery (Mds) |
| Secondary specialties | Dermatology |
Medical group
- Anne Arundel Dermatology PAGlen Burnie, MD · 127 clinicians
Industry payments (Open Payments)
- 2025$441.52 · 4 payments from 1 company
- 2024$52.49 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ucb, Inc. | $441.52 | 4 |
What the 2025 payments were for
- Food and Beverage$441.52 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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