Katherine Gagan, MD
NPI 1770148850ActiveIndividual· Family Medicine· Plymouth, NH
Family Medicine (MD) with Cora Health Services Inc and 1 other group, practicing in Plymouth, New Hampshire. Their prescriptions cost Medicare Part D more than their services did: $325,564 for 3,177 claims, against $4,145 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 10 companies reporting payments in 2025, $557.29 in all, mostly food and beverage. Lists Concord Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1770148850 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 5, 2019 |
| Last updated in NPPES | Aug 4, 2023 |
| Certified by provider | Aug 4, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 22604 | NH |
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 - Family Practice (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 107 |
|---|---|
| Services billed | 327 across 30 procedure codes |
| Paid by Medicare | $4,145 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,177 · 6,320 30-day fills |
|---|---|
| Patients | 334 |
| Total drug cost | $325,564 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Family Practice |
Medical groups
- Cora Health Services IncThe Villages, FL · 1,136 clinicians
- Mid-State Health CenterPlymouth, NH · 32 clinicians
Hospital affiliations
- Concord HospitalConcord, NH
- Concord Hospital- LaconiaLaconia, NH
- Mary Hitchcock Memorial HospitalLebanon, NH
- Speare Memorial HospitalPlymouth, NH
Other facilities
- Lakes Region Visiting Nurse AssociationHome health agency · Meredith, NH
- Pemi Baker Community HealthHome health agency · Plymouth, NH
- Quality Care Home Health & HospiceHome health agency · Center Harbor, NH
Industry payments (Open Payments)
- 2025$557.29 · 23 payments from 10 companies
- 2024$563.50 · 30 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $174.34 | 5 |
| Abbvie Inc. | $143.03 | 8 |
| Gilead Sciences, Inc. | $46.75 | 2 |
| Lilly USA, LLC | $45.03 | 2 |
| Lundbeck LLC | $29.61 | 1 |
What the 2025 payments were for
- Food and Beverage$557.29 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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