Christi Ann Hayes, M.D.
NPI 1629265111ActiveIndividual· Internal Medicine, Hematology & Oncology· Lebanon, NH
Internal Medicine, Hematology & Oncology (M.D.) with Dartmouth-Hitchcock Clinic and 1 other group, practicing in Lebanon, New Hampshire. Their prescriptions cost Medicare Part D more than their services did: $3,761,979 for 741 claims, against $58,915 paid for services in 2024. Lists Catholic Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1629265111 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 27, 2007 |
| Last updated in NPPES | Jul 17, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 17166 | NH |
| Internal Medicine | 207R00000X | 257885 | NY |
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) | Enrolled Practitioner - Hematology/Oncology (NH); Practitioner - Hematology (VT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 335 |
|---|---|
| Services billed | 854 across 19 procedure codes |
| Paid by Medicare | $58,915 |
Part D prescriptions in 2024
| Prescriptions (claims) | 741 · 831 30-day fills |
|---|---|
| Patients | 119 |
| Total drug cost | $3,761,979 |
| Generic share | 57% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Dartmouth-Hitchcock ClinicLebanon, NH · 1,472 clinicians
- Mary Hitchcock Memorial HospitalManchester, NH · 1,280 clinicians
Hospital affiliations
- Catholic Medical CenterManchester, NH
- Concord HospitalConcord, NH
- Mary Hitchcock Memorial HospitalLebanon, NH
- Springfield HospitalSpringfield, VT
- Weeks Medical CenterLancaster, NH
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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