Quick answers
- Which hospitals does Jay B. Baker Ii work at?
- Medicare's official clinician data lists Jay B. Baker Ii at 1 hospital: Astria Toppenish Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jay B. Baker Ii see patients?
- Medicare's clinician data lists 1 practice location in Toppenish, WA. Call before your visit to confirm the address.
- What is Jay B. Baker Ii's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Jay B. Baker Ii accept Medicare assignment?
- Yes. Medicare's clinician data says Jay B. Baker Ii 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 Jay B. Baker Ii?
- (509) 865-3105, as listed in official Medicare / NPI Registry data.
- What is Jay B. Baker Ii's NPI number?
- 1285722173. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jay B. Baker Ii works
Medicare's Facility Affiliation Data lists Jay B. Baker Ii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Astria Toppenish HospitalToppenish, WA · Acute Care Hospital · CCN 500037
Practice locations
Addresses where Jay B. Baker Ii is enrolled with Medicare (CMS data updated 2026-10-02).
- 502 W 4th AveToppenish, WA 98948 (509) 865‑3105
Group practices
Medicare enrollment lists Jay B. Baker Ii as a member of this group (CMS data updated 2026-10-02).
- Olney Emergency Group, a Professional LLC20 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Toppenish
Clinicians with the same Medicare primary specialty in Toppenish, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285722173 |
| 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