Melissa M. Mahon, CRNA/ARNP
NPI 1003047820ActiveIndividual· Nurse Anesthetist, Certified Registered· Bloomfield, IA
Nurse Anesthetist, Certified Registered (CRNA/ARNP) with Medstream Anesthesia PLLC, practicing in Bloomfield, Iowa. Medicare paid $4,904 for services to 32 patients in 2024. Merck Sharp & Dohme LLC was the largest of 2 companies reporting payments in 2025, $35.82 in all, mostly food and beverage. Lists Henry County Health Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1003047820 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNA/ARNP |
| Sole proprietor | No |
| NPI issued | Jul 28, 2009 |
| Last updated in NPPES | Feb 9, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | D-129549 | IA |
| Nurse Anesthetist, Certified Registered | 367500000X | ARNP9207011 | FL |
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 - Certified Registered Nurse Anesthetist (CRNA) (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 32 |
|---|---|
| Services billed | 40 across 22 procedure codes |
| Paid by Medicare | $4,904 |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical group
- Medstream Anesthesia PLLCOttumwa, IA · 573 clinicians
Hospital affiliations
- Henry County Health CenterMount Pleasant, IA
- Ottumwa Regional Health CenterOttumwa, IA
- Southeast Iowa Regional Medical CenterWest Burlington, IA
Industry payments (Open Payments)
- 2025$35.82 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $19.32 | 1 |
| Depuy Synthes Sales Inc. | $16.50 | 1 |
What the 2025 payments were for
- Food and Beverage$35.82 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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