Quick answers
- Where does Zareth Irwin see patients?
- Medicare's clinician data lists 2 practice locations, including Houston, TX and West Linn, OR. Call before your visit to confirm the address.
- What is Zareth Irwin's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Zareth Irwin accept Medicare assignment?
- Medicare's clinician data says Zareth Irwin may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Zareth Irwin's NPI number?
- 1912031139. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Zareth Irwin is enrolled with Medicare (CMS data updated 2026-10-02).
- 10021 Main St, Suite B4Houston, TX 77025
- 1665 Edgewater CtWest Linn, OR 97068
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Oregon Health Sciences University School Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1912031139 |
| 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
- 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