Quick answers
- Which hospitals does Karly A. Koster work at?
- Medicare's official clinician data lists Karly A. Koster at 2 hospitals: Banner Boswell Medical Center and Banner del E. Webb Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Karly A. Koster see patients?
- Medicare's clinician data lists 1 practice location in Glendale, AZ. Call before your visit to confirm the address.
- What is Karly A. Koster's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Karly A. Koster accept Medicare assignment?
- Yes. Medicare's clinician data says Karly A. Koster 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 Karly A. Koster?
- (623) 248-2100, as listed in official Medicare / NPI Registry data.
- What is Karly A. Koster's NPI number?
- 1467313759. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Karly A. Koster works
Medicare's Facility Affiliation Data lists Karly A. Koster at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Banner Boswell Medical CenterSun City, AZ · Acute Care Hospital · CCN 030061
- Banner del E. Webb Medical CenterSun City West, AZ · Acute Care Hospital · CCN 030093
Practice locations
Addresses where Karly A. Koster is enrolled with Medicare (CMS data updated 2026-10-02).
- 7701 W Aspera Blvd, Stes 102 201 301Glendale, AZ 85308 (623) 248‑2100
Group practices
Medicare enrollment lists Karly A. Koster as a member of this group (CMS data updated 2026-10-02).
- Banner Physician Specialists Arizona LLC373 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Glendale
Clinicians with the same Medicare primary specialty in Glendale, AZ — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467313759 |
| 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