Ann Frekko Raffo, MD
NPI 1497752224ActiveIndividual· Internal Medicine· Gaithersburg, MD
Internal Medicine (MD) in Gaithersburg, Maryland, trained at Georgetown University School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $176,142 for 1,570 claims, against $75,160 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 12 companies reporting payments in 2025, $277.02 in all, mostly food and beverage.
Overview
| NPI | 1497752224 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 7, 2005 |
| Last updated in NPPES | Jul 31, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D0059579 | 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 (DC); Practitioner - Internal Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 152 |
|---|---|
| Services billed | 1,264 across 39 procedure codes |
| Paid by Medicare | $75,160 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,570 · 3,894 30-day fills |
|---|---|
| Patients | 142 |
| Total drug cost | $176,142 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Suburban/Nrh Medical Rehabilitation IncBethesda, MD · 941 clinicians
- Privia Care Center LLCArnold, MD · 287 clinicians
Industry payments (Open Payments)
- 2025$277.02 · 13 payments from 12 companies
- 2024$284.22 · 13 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $39.78 | 2 |
| Astrazeneca Pharmaceuticals LP | $27.86 | 1 |
| Astellas Pharma US Inc | $26.42 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $24.92 | 1 |
| Novartis Pharmaceuticals Corporation | $24.61 | 1 |
What the 2025 payments were for
- Food and Beverage$277.02 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 81 internal medicine physicians in Gaithersburg · All internal medicine physicians in Maryland