David Mark Hayes, MD
NPI 1205823416ActiveIndividual· Otolaryngology· Missoula, MT
Otolaryngology (MD) in Missoula, Montana, trained at University of Colorado School of Medicine, Denver (class of 1981). 15 Medicare patients in 2024, $4,799 paid; nearly all of their 154 Part D prescriptions were generic (91%). Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $81.18 in all, mostly food and beverage.
Overview
| NPI | 1205823416 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Oct 3, 2005 |
| Last updated in NPPES | Feb 3, 2026 |
| Certified by provider | Feb 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | 5281 | MT |
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 - Otolaryngology (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 15 |
|---|---|
| Services billed | 22 across 9 procedure codes |
| Paid by Medicare | $4,799 |
Part D prescriptions in 2024
| Prescriptions (claims) | 154 · 170 30-day fills |
|---|---|
| Patients | 32 |
| Total drug cost | $736.84 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of Colorado School of Medicine, Denver |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Otolaryngology |
Industry payments (Open Payments)
- 2025$81.18 · 4 payments from 2 companies
- 2024$18.14 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $41.11 | 2 |
| Galderma Laboratories, L.P. | $40.07 | 2 |
What the 2025 payments were for
- Food and Beverage$81.18 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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