Quick answers
- Which hospitals does Nicholas S. Holtan work at?
- Medicare's official clinician data lists Nicholas S. Holtan at 2 hospitals: Providence Centralia Hospital and Providence St Peter Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nicholas S. Holtan see patients?
- Medicare's clinician data lists 1 practice location in Centralia, WA. Call before your visit to confirm the address.
- What is Nicholas S. Holtan's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Nicholas S. Holtan accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas S. Holtan 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 Nicholas S. Holtan?
- (360) 736-2803, as listed in official Medicare / NPI Registry data.
- What is Nicholas S. Holtan's NPI number?
- 1609187103. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nicholas S. Holtan works
Medicare's Facility Affiliation Data lists Nicholas S. Holtan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Centralia HospitalCentralia, WA · Acute Care Hospital · CCN 500019
- Providence St Peter HospitalOlympia, WA · Acute Care Hospital · CCN 500024
Practice locations
Addresses where Nicholas S. Holtan is enrolled with Medicare (CMS data updated 2026-10-02).
- 914 S Scheuber RdCentralia, WA 98531 (360) 736‑2803
Group practices
Medicare enrollment lists Nicholas S. Holtan as a member of this group (CMS data updated 2026-10-02).
- Providence Health and Services Washington475 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Centralia
Clinicians with the same Medicare primary specialty in Centralia, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Arizona College Of Medicine |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609187103 |
| 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