Nathaniel D. Evans, D.O
NPI 1104054378ActiveIndividual· Obstetrics & Gynecology· Sierra Vista, AZ
Obstetrics & Gynecology (D.O) with Dhhs Ihs Phoenix Area, practicing in Sierra Vista, Arizona. Their prescriptions cost Medicare Part D more than their services did: $7,164 for 59 claims, against $1,140 paid for services in 2024. Pfizer Inc. reported $22.12 in payments in 2025, mostly food and beverage. Lists Whiteriver Phs Indian Hospital as a hospital affiliation.
Overview
| NPI | 1104054378 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O |
| Sole proprietor | Yes |
| NPI issued | Jun 26, 2009 |
| Last updated in NPPES | Aug 14, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 6079 | 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 - Obstetrics/Gynecology (AZ); Practitioner - Obstetrics/Gynecology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 12 |
|---|---|
| Services billed | 20 across 7 procedure codes |
| Paid by Medicare | $1,140 |
Part D prescriptions in 2024
| Prescriptions (claims) | 59 · 90 30-day fills |
|---|---|
| Patients | 22 |
| Total drug cost | $7,164 |
| Generic share | 64% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Dhhs Ihs Phoenix AreaWhiteriver, AZ · 71 clinicians
Hospital affiliation
- Whiteriver Phs Indian HospitalWhiteriver, AZ
Industry payments (Open Payments)
- 2025$22.12 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $22.12 | 1 |
What the 2025 payments were for
- Food and Beverage$22.12 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other OB-GYNs in Sierra Vista
- 1134111941
- 1013129923
- 1104184522
- 1518141555
- 1669656609
- 1720218860
- 1851312896
- 1932120870
- 1033140512
- 1861426439
- 1245279827
- 1801836119