Quick answers
- Which hospitals does Gary J. Gretch work at?
- Medicare's official clinician data lists Gary J. Gretch at 5 hospitals: Jefferson Healthcare, Olympic Medical Center, St Anthony Hospital, St Joseph Medical Center and St Michael Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gary J. Gretch see patients?
- Medicare's clinician data lists 3 practice locations, including Silverdale, WA, Glenview, IL and Bremerton, WA. Call before your visit to confirm the address.
- What is Gary J. Gretch's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Gary J. Gretch accept Medicare assignment?
- Yes. Medicare's clinician data says Gary J. Gretch 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 Gary J. Gretch?
- (564) 240-1000, as listed in official Medicare / NPI Registry data.
- What is Gary J. Gretch's NPI number?
- 1053392597. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gary J. Gretch works
Medicare's Facility Affiliation Data lists Gary J. Gretch at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Jefferson HealthcarePort Townsend, WA · Critical Access Hospital · CCN 501323
- Olympic Medical CenterPort Angeles, WA · Acute Care Hospital · CCN 500072
- St Anthony HospitalGig Harbor, WA · Acute Care Hospital · CCN 500151
- St Joseph Medical CenterTacoma, WA · Acute Care Hospital · CCN 500108
- St Michael Medical CenterSilverdale, WA · Acute Care Hospital · CCN 500039
Practice locations
Addresses where Gary J. Gretch is enrolled with Medicare (CMS data updated 2026-10-02).
- 1800 NW Myhre RdSilverdale, WA 98383 (564) 240‑1000
- 2600 Compass RdGlenview, IL 60026
- 2620 Wheaton WayBremerton, WA 98310 (360) 377‑3923
Group practices
Medicare enrollment lists Gary J. Gretch as a member of these groups (CMS data updated 2026-10-02).
- Select Rehabilitation, LLC2,046 clinicians in the group
- Franciscan Medical Group1,421 clinicians in the group
- Select Outpatient Services Inc805 clinicians in the group
- Olympic Internal Medicine, Inc., P.S.4 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Silverdale
Clinicians with the same Medicare primary specialty in Silverdale, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1053392597 |
| 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