Quick answers
- Which hospitals does Eugen Ivan work at?
- Medicare's official clinician data lists Eugen Ivan at 4 hospitals: Duncan Regional Hospital, Inc, Jackson County Memorial Hospital Authority, Lawton Indian Hospital and Memorial Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Eugen Ivan see patients?
- Medicare's clinician data lists 2 practice locations, including Lawton, OK. Call before your visit to confirm the address.
- What is Eugen Ivan's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Eugen Ivan accept Medicare assignment?
- Yes. Medicare's clinician data says Eugen Ivan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Eugen Ivan?
- (580) 250-4278, as listed in official Medicare / NPI Registry data.
- What is Eugen Ivan's NPI number?
- 1790735389. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Eugen Ivan works
Medicare's Facility Affiliation Data lists Eugen Ivan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Duncan Regional Hospital, IncDuncan, OK · Acute Care Hospital · CCN 370023
- Jackson County Memorial Hospital AuthorityAltus, OK · Acute Care Hospital · CCN 370022
- Lawton Indian HospitalLawton, OK · Acute Care Hospital · CCN 370170
- Memorial HealthLawton, OK · Acute Care Hospital · CCN 370056
Practice locations
Addresses where Eugen Ivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 3106 NW Arlington Ave, County Memorial HospitalLawton, OK 73505 (580) 250‑4278
- 3401 W Gore Blvd, Heart and VascularLawton, OK 73505 (580) 483‑5207
Group practices
Medicare enrollment lists Eugen Ivan as a member of these groups (CMS data updated 2026-10-02).
- Comanche County Hospital Authority51 clinicians in the group
- Comanche County Hospital Authority10 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Oklahoma →
Other cardiologists in Lawton
Clinicians with the same Medicare primary specialty in Lawton, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790735389 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians