Elizabeth J. Welch Marsh, MD
NPI 1619974680ActiveIndividual· Anesthesiology· Manchester, NH
Anesthesiology (MD) in Manchester, New Hampshire, trained at University of Vermont College of Medicine (class of 2001). Medicare paid $32,128 for services to 318 patients in 2024. Ardelyx, Inc. was the largest of 2 companies reporting payments in 2025, $185.69 in all, mostly food and beverage.
Overview
| NPI | 1619974680 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 5, 2005 |
| Last updated in NPPES | Aug 17, 2025 |
| Certified by provider | Aug 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 12925 | NH |
| Anesthesiology | 207L00000X | 286869 | MA |
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 | 318 |
|---|---|
| Services billed | 327 across 38 procedure codes |
| Paid by Medicare | $32,128 |
Education and affiliations
| Medical school | University of Vermont College of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Anesthesiology |
Medical groups
- Dartmouth-Hitchcock ClinicLebanon, NH · 1,472 clinicians
- Associated Physicians of Harvard Medical Faculty Physicians at Beth IsMilton, MA · 565 clinicians
- Mass General Brigham Medical Group Western Massachusetts IncNorthampton, MA · 291 clinicians
Hospital affiliations
- Anna Jaques HospitalNewburyport, MA
- Cooley Dickinson Hospital Inc,theNorthampton, MA
Industry payments (Open Payments)
- 2025$185.69 · 8 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $160.94 | 7 |
| Leo Pharma Inc. | $24.75 | 1 |
What the 2025 payments were for
- Food and Beverage$185.69 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 41 anesthesiologists in Manchester · All anesthesiologists in New Hampshire