Marc David London, M.D.
NPI 1720140767ActiveIndividual· Psychiatry & Neurology, Neurology· West Nyack, NY
Psychiatry & Neurology, Neurology (M.D.) in West Nyack, New York, trained at Northwestern University Feinberg Medical School (class of 1982). Their prescriptions cost Medicare Part D more than their services did: $241,858 for 1,907 claims, against $150,417 paid for services in 2024. Abbvie Inc. was the largest of 24 companies reporting payments in 2025, $2,680 in all, mostly food and beverage.
Overview
| NPI | 1720140767 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 15, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 154602 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 705 |
|---|---|
| Services billed | 1,661 across 19 procedure codes |
| Paid by Medicare | $150,417 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,907 · 3,056 30-day fills |
|---|---|
| Patients | 433 |
| Total drug cost | $241,858 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Medical group
- White Plains Medical Diagnostic Services, PCNew City, NY · 93 clinicians
Hospital affiliations
- Helen Hayes HospitalWest Haverstraw, NY
- Nyack HospitalNyack, NY
Industry payments (Open Payments)
- 2025$2,680 · 132 payments from 24 companies
- 2024$2,879 · 157 payments from 25 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $1,059 | 54 |
| Pfizer Inc. | $236.74 | 16 |
| Ucb, Inc. | $208.54 | 13 |
| Argenx US, Inc. | $155.06 | 5 |
| Lundbeck LLC | $140.73 | 5 |
What the 2025 payments were for
- Food and Beverage$2,680 · 132 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Psychiatry & Neurology, Neurology providers in New York →