Landon Joseph Massoth, M.D.
NPI 1497169734ActiveIndividual· Otolaryngology· Tulsa, OK
Otolaryngology (M.D.) with Eastern Oklahoma Ear Nose and Throat Inc, practicing in Tulsa, Oklahoma. 129 Medicare patients in 2024, $80,184 paid; nearly all of their 253 Part D prescriptions were generic (98%). Genzyme Corporation was the largest of 12 companies reporting payments in 2025, $851.42 in all, mostly food and beverage. Lists Saint Francis Hospital South, LLC and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1497169734 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 15, 2014 |
| Last updated in NPPES | Jul 9, 2020 |
| Certified by provider | Jul 9, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | 30729 | OK |
| Otolaryngology | 207Y00000X | MD60927106 | WA |
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 - Otolaryngology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 129 |
|---|---|
| Services billed | 665 across 44 procedure codes |
| Paid by Medicare | $80,184 |
Part D prescriptions in 2024
| Prescriptions (claims) | 253 · 320 30-day fills |
|---|---|
| Patients | 89 |
| Total drug cost | $6,741 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Otolaryngology |
Medical group
- Eastern Oklahoma Ear Nose and Throat IncTulsa, OK · 22 clinicians
Hospital affiliations
- Saint Francis Hospital South, LLCTulsa, OK
- Saint Francis Hospital Vinita, IncVinita, OK
- Saint Francis Hospital, IncTulsa, OK
- Tulsa Spine & Specialty HospitalTulsa, OK
Industry payments (Open Payments)
- 2025$851.42 · 32 payments from 12 companies
- 2024$444.92 · 21 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $213.15 | 11 |
| Neurent Medical Limited | $162.09 | 1 |
| Glaxosmithkline, LLC. | $136.56 | 8 |
| Sanofi-Aventis U.S. LLC | $99.00 | 1 |
| Regeneron Healthcare Solutions, Inc. | $48.40 | 2 |
What the 2025 payments were for
- Food and Beverage$718.42 · 30 payments
- Education$133.00 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 38 otolaryngologists in Tulsa · All otolaryngologists in Oklahoma