Miles Rudyard Maassen, DO
NPI 1598320483ActiveIndividual· Emergency Medicine· Houston, TX
Emergency Medicine (DO) in Houston, Texas, trained at Arizona College of Osteopathic Medicine Mid Western University (class of 2019). 269 Medicare patients in 2024, $33,086 paid; nearly all of their 89 Part D prescriptions were generic (96%).
Overview
| NPI | 1598320483 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 6, 2019 |
| Last updated in NPPES | Oct 11, 2022 |
| Certified by provider | Oct 11, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 20A19760 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 269 |
|---|---|
| Services billed | 369 across 29 procedure codes |
| Paid by Medicare | $33,086 |
Part D prescriptions in 2024
| Prescriptions (claims) | 89 · 89 30-day fills |
|---|---|
| Patients | 66 |
| Total drug cost | $873.38 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Arizona College of Osteopathic Medicine Mid Western University |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Emergency Medicine |
Medical groups
- Seaside Emergency AssociatesVentura, CA · 18 clinicians
- Ojai Emergency Physicians CorporationOjai, CA · 14 clinicians
Hospital affiliations
- Community Memorial Hospital - OjaiOjai, CA
- Ventura County Medical CenterVentura, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 953 emergency medicine physicians in Houston · All emergency medicine physicians in Texas