Quick answers
- Which hospitals does Irina Cassimatis work at?
- Medicare's official clinician data lists Irina Cassimatis at 1 hospital: OHSU Hospital and Clinics. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Irina Cassimatis see patients?
- Medicare's clinician data lists 2 practice locations, including The Dalles, OR and Vancouver, WA. Call before your visit to confirm the address.
- What is Irina Cassimatis's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Irina Cassimatis accept Medicare assignment?
- Yes. Medicare's clinician data says Irina Cassimatis 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 Irina Cassimatis?
- (541) 296-5657, as listed in official Medicare / NPI Registry data.
- What is Irina Cassimatis's NPI number?
- 1194119172. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Irina Cassimatis works
Medicare's Facility Affiliation Data lists Irina Cassimatis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · CCN 380009
Practice locations
Addresses where Irina Cassimatis is enrolled with Medicare (CMS data updated 2026-10-02).
- 1810 E 19th St, Suite 209The Dalles, OR 97058 (541) 296‑5657
- 505 NE 87th Ave, Suite 160Vancouver, WA 98664 (360) 514‑1060
Group practices
Medicare enrollment lists Irina Cassimatis as a member of these groups (CMS data updated 2026-10-02).
- University Professional Services1,724 clinicians in the group
- PeaceHealth249 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in The Dalles
Clinicians with the same Medicare primary specialty in The Dalles, OR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Nebraska College Of Medicine |
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1194119172 |
| 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