John B. Chastain, MD
NPI 1801915715ActiveIndividual· Otolaryngology· Tucson, AZ
Otolaryngology (MD) in Tucson, Arizona, trained at Medical College of Georgia School of Medicine (class of 2002). 763 Medicare patients in 2024, $145,910 paid; nearly all of their 1,158 Part D prescriptions were generic (95%). Aerin Medical Inc. was the largest of 10 companies reporting payments in 2025, $2,217 in all, mostly travel and lodging.
Overview
| NPI | 1801915715 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 29, 2007 |
| Last updated in NPPES | Aug 12, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | 51562 | AZ |
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 (AZ); Practitioner - Otolaryngology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 763 |
|---|---|
| Services billed | 2,586 across 76 procedure codes |
| Paid by Medicare | $145,910 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,158 · 1,654 30-day fills |
|---|---|
| Patients | 452 |
| Total drug cost | $85,314 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Medical College of Georgia School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Otolaryngology |
Medical groups
- San Carlos Apache Healthcare CorporationPeridot, AZ · 148 clinicians
- Neurological Associates of TucsonTucson, AZ · 61 clinicians
Hospital affiliations
- Northwest Medical CenterTucson, AZ
- Oro Valley HospitalOro Valley, AZ
- San Carlos Apache Healthcare CorporationPeridot, AZ
- Tucson Medical CenterTucson, AZ
Industry payments (Open Payments)
- 2025$2,217 · 39 payments from 10 companies
- 2024$371.90 · 13 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aerin Medical Inc. | $1,819 | 17 |
| Glaxosmithkline, LLC. | $156.25 | 9 |
| Genzyme Corporation | $102.80 | 5 |
| Regeneron Healthcare Solutions, Inc. | $35.39 | 2 |
| Merck Sharp & Dohme LLC | $22.69 | 1 |
What the 2025 payments were for
- Travel and Lodging$1,116 · 4 payments
- Food and Beverage$1,100 · 35 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 otolaryngologists in Tucson · All otolaryngologists in Arizona