Melissa A. Callahan, CRNP
NPI 1669411393ActiveIndividual· Nurse Practitioner, Gerontology· Exton, PA
Nurse Practitioner, Gerontology (CRNP) in Exton, Pennsylvania, licensed in PA, with an NPI issued in June 2006. Part D covered 490 prescriptions written in 2024, 93% of them generic. Braeburn Inc. was the largest of 8 companies reporting payments in 2025, $47,200 in all, mostly honoraria.
Overview
| NPI | 1669411393 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNP |
| Sole proprietor | No |
| NPI issued | Jun 6, 2006 |
| Last updated in NPPES | Feb 26, 2024 |
| Certified by provider | Feb 26, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | TP006181H | PA |
| Nurse Practitioner, Adult Health | 363LA2200X | TP006182C | PA |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 490 · 503 30-day fills |
|---|---|
| Patients | 88 |
| Total drug cost | $20,625 |
| Generic share | 93% of claims |
Industry payments (Open Payments)
- 2025$47,200 · 132 payments from 8 companies
- 2024$5,977 · 47 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Braeburn Inc. | $36,881 | 97 |
| Alkermes, Inc. | $9,885 | 16 |
| Indivior Inc. | $169.42 | 8 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $93.09 | 4 |
| E.R. Squibb & Sons, L.L.C. | $55.10 | 2 |
What the 2025 payments were for
- Honoraria$26,550 · 23 payments
- Travel and Lodging$9,101 · 42 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$6,970 · 4 payments
- Food and Beverage$3,459 · 61 payments
- Consulting Fee$1,120 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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