Brittany Giammalvo, RPA-C
NPI 1033426200ActiveIndividual· Physician Assistant· Old Saybrook, CT
Physician Assistant (RPA-C) with Saybrook Dermatology LLC, practicing in Old Saybrook, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $114,066 for 771 claims, against $57,458 paid for services in 2024. Janssen Biotech, Inc. reported $143.80 in payments in 2025, mostly education. Lists Middlesex Hospital as a hospital affiliation.
Overview
| NPI | 1033426200 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RPA-C |
| Sole proprietor | No |
| NPI issued | Sep 8, 2010 |
| Last updated in NPPES | May 27, 2020 |
| Certified by provider | May 27, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 4808 | CT |
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 - Physician Assistant (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 290 |
|---|---|
| Services billed | 1,154 across 23 procedure codes |
| Paid by Medicare | $57,458 |
Part D prescriptions in 2024
| Prescriptions (claims) | 771 · 905 30-day fills |
|---|---|
| Patients | 338 |
| Total drug cost | $114,066 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Saybrook Dermatology LLCOld Saybrook, CT · 5 clinicians
Hospital affiliation
- Middlesex HospitalMiddletown, CT
Industry payments (Open Payments)
- 2025$143.80 · 6 payments from 1 company
- 2024$205.39 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $143.80 | 6 |
What the 2025 payments were for
- Education$99.00 · 1 payment
- Food and Beverage$44.80 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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