John M. Riddell, MD
NPI 1174593073ActiveIndividual· Anesthesiology· Concord, NH
Anesthesiology (MD) in Concord, New Hampshire, trained at Medical College of Wisconsin (class of 1999). Medicare paid $15,083 for services to 138 patients in 2024. Takeda Pharmaceuticals U.S.A., Inc. reported $91.24 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1174593073 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 24, 2006 |
| Last updated in NPPES | Dec 31, 2023 |
| Certified by provider | Dec 31, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 14640 | NH |
| Anesthesiology | 207L00000X | 228118 | NY |
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 - Anesthesiology (MA); Practitioner - Anesthesiology (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 138 |
|---|---|
| Services billed | 139 across 19 procedure codes |
| Paid by Medicare | $15,083 |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Anesthesiology |
Medical groups
- Dartmouth-Hitchcock ClinicLebanon, NH · 1,472 clinicians
- Anesthesia Associates of New England PCDerry, NH · 15 clinicians
- Emerson Endoscopy and Digestive Health Center, LLCConcord, MA · 12 clinicians
Hospital affiliation
- Parkland Medical CenterDerry, NH
Industry payments (Open Payments)
- 2025$91.24 · 3 payments from 1 company
- 2024$232.67 · 10 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $91.24 | 3 |
What the 2025 payments were for
- Food and Beverage$91.24 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other anesthesiologists in Concord
- 1114138880
- 1215111398
- 1265538102
- 1356447254
- 1366769960
- 1487603791
- 1639275480
- 1720159213
- 1801215629
- 1942315957
- 1720184633
- 1023463411
All 41 anesthesiologists in Concord · All anesthesiologists in New Hampshire