Mark Frederic Williams, M.D.
NPI 1104820828ActiveIndividual· Otolaryngology· Lutherville, MD
Otolaryngology (M.D.) in Lutherville, Maryland, trained at Medical College of Georgia School of Medicine (class of 1988). 613 Medicare patients in 2024, $174,562 paid; nearly all of their 380 Part D prescriptions were generic (96%).
Overview
| NPI | 1104820828 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 9, 2005 |
| Last updated in NPPES | Apr 8, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | D0043030 | 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 - Otolaryngology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 613 |
|---|---|
| Services billed | 2,572 across 33 procedure codes |
| Paid by Medicare | $174,562 |
Part D prescriptions in 2024
| Prescriptions (claims) | 380 · 535 30-day fills |
|---|---|
| Patients | 165 |
| Total drug cost | $9,453 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Medical College of Georgia School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Otolaryngology |
| Telehealth | Offers telehealth |
Medical group
- Greater Baltimore Medical CenterTowson, MD · 354 clinicians
Hospital affiliation
- Sentara Rmh Medical CenterHarrisonburg, VA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other otolaryngologists in Lutherville
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