Nathan John Ham, D.O.
NPI 1598031320ActiveIndividual· Emergency Medicine· Irving, TX
Emergency Medicine (D.O.) in Irving, Texas, trained at Kansas City College of Medicine and Surgery (class of 2011). 194 Medicare patients in 2024, $27,316 paid; nearly all of their 236 Part D prescriptions were generic (92%). Stryker Corporation was the largest of 2 companies reporting payments in 2025, $258.00 in all, mostly food and beverage.
Overview
| NPI | 1598031320 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Mar 27, 2012 |
| Last updated in NPPES | Jun 15, 2022 |
| Certified by provider | Jun 15, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | Q4595 | TX |
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 - Emergency Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 194 |
|---|---|
| Services billed | 309 across 18 procedure codes |
| Paid by Medicare | $27,316 |
Part D prescriptions in 2024
| Prescriptions (claims) | 236 · 240 30-day fills |
|---|---|
| Patients | 125 |
| Total drug cost | $2,014 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Kansas City College of Medicine and Surgery |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Emergency Medicine |
Medical group
- Emcare Rsn Emergency Physicians PLLCCelina, TX · 15 clinicians
Hospital affiliations
- Methodist Celina Medical CenterCelina, TX
- Methodist Richardson Medical CenterRichardson, TX
Industry payments (Open Payments)
- 2025$258.00 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $170.50 | 1 |
| Csl Behring | $87.50 | 1 |
What the 2025 payments were for
- Food and Beverage$258.00 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 emergency medicine physicians in Irving · All emergency medicine physicians in Texas