Nathalie S. May, MD
NPI 1922051515ActiveIndividual· Internal Medicine· Philadelphia, PA
Internal Medicine (MD) in Philadelphia, Pennsylvania, trained at Perelman School of Med at the University of Pennsylvania (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $81,445 for 1,197 claims, against $14,869 paid for services in 2024. Lilly USA, LLC was the largest of 3 companies reporting payments in 2025, $68.50 in all, mostly food and beverage.
Overview
| NPI | 1922051515 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 18, 2006 |
| Last updated in NPPES | May 16, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD069391L | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 85 |
|---|---|
| Services billed | 240 across 20 procedure codes |
| Paid by Medicare | $14,869 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,197 · 3,137 30-day fills |
|---|---|
| Patients | 155 |
| Total drug cost | $81,445 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | Perelman School of Med at the University of Pennsylvania |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
Medical group
- Drexel UniversityPhiladelphia, PA · 81 clinicians
Hospital affiliations
- Hospital of Univ of PennsylvaniaPhiladelphia, PA
- Penn Presbyterian Medical CenterPhiladelphia, PA
- Pennsylvania HospitalPhiladelphia, PA
Industry payments (Open Payments)
- 2025$68.50 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $28.89 | 1 |
| Glaxosmithkline, LLC. | $25.10 | 1 |
| Merck Sharp & Dohme LLC | $14.51 | 1 |
What the 2025 payments were for
- Food and Beverage$68.50 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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