A. Geoffrey Didario, MD
NPI 1336282870ActiveIndividual· Allergy & Immunology· Ardmore, PA
Allergy & Immunology (MD) in Ardmore, Pennsylvania, trained at University of Vermont College of Medicine (class of 1997). In 2024 Medicare paid $64,324 for 71 patients, and Part D covered 320 of their prescriptions, 57% of them generic. Glaxosmithkline, LLC. was the largest of 19 companies reporting payments in 2025, $2,154 in all, mostly food and beverage.
Overview
| NPI | 1336282870 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 15, 2007 |
| Last updated in NPPES | Apr 6, 2021 |
| Certified by provider | Apr 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | MD426432 | 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 - Allergy/Immunology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 71 |
|---|---|
| Services billed | 2,297 across 18 procedure codes |
| Paid by Medicare | $64,324 |
Part D prescriptions in 2024
| Prescriptions (claims) | 320 · 555 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $82,134 |
| Generic share | 57% of claims |
Education and affiliations
| Medical school | University of Vermont College of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Allergy/Immunology |
Medical group
- Main Line Allergy , L.L.P.Ardmore, PA · 5 clinicians
Industry payments (Open Payments)
- 2025$2,154 · 100 payments from 19 companies
- 2024$1,628 · 75 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $397.11 | 20 |
| Genzyme Corporation | $334.04 | 13 |
| Novartis Pharmaceuticals Corporation | $323.99 | 15 |
| Astrazeneca Pharmaceuticals LP | $182.13 | 10 |
| Genentech USA, Inc. | $151.15 | 8 |
What the 2025 payments were for
- Food and Beverage$2,140 · 99 payments
- Consulting Fee$14.60 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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