Deborah Horwitz, MD
NPI 1770520785ActiveIndividual· Internal Medicine· Bethesda, MD
Internal Medicine (MD) in Bethesda, Maryland, trained at Temple University School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $556,243 for 5,631 claims, against $218,537 paid for services in 2024. Pfizer Inc. was the largest of 2 companies reporting payments in 2025, $103.45 in all, mostly food and beverage.
Overview
| NPI | 1770520785 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 31, 2006 |
| Last updated in NPPES | Sep 22, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD35082 | DC |
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 - Internal Medicine (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 586 |
|---|---|
| Services billed | 2,948 across 47 procedure codes |
| Paid by Medicare | $218,537 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,631 · 15,149 30-day fills |
|---|---|
| Patients | 629 |
| Total drug cost | $556,243 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Temple University School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Medstar Medical Group II LLCWashington, DC · 3,767 clinicians
- Suburban/Nrh Medical Rehabilitation IncBethesda, MD · 941 clinicians
Hospital affiliations
- Medstar Georgetown University HospitalWashington, DC
- Sibley Memorial HospitalWashington, DC
Other facilities
- Adventist Home Health Services, Inc.Home health agency · Silver Spring, MD
- Amedisys Home Health CareHome health agency · Largo, MD
- Home CallHome health agency · Frederick, MD
- Medstar Health Home CareHome health agency · Hyattsville, MD
- Potomac Home Health CareHome health agency · Bethesda, MD
Industry payments (Open Payments)
- 2025$103.45 · 2 payments from 2 companies
- 2024$49.13 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $81.27 | 1 |
| Lilly USA, LLC | $22.18 | 1 |
What the 2025 payments were for
- Food and Beverage$103.45 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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