Quick answers
- Which hospitals does Gary M. Greenberg work at?
- Medicare's official clinician data lists Gary M. Greenberg at 3 hospitals: Kaiser Foundation Hospital Westside, Kaiser Sunnyside Medical Center and Providence Seaside Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gary M. Greenberg see patients?
- Medicare's clinician data lists 1 practice location in Hillsboro, OR. Call before your visit to confirm the address.
- What is Gary M. Greenberg's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Cardiac Electrophysiology and Internal Medicine.
- Does Gary M. Greenberg accept Medicare assignment?
- Yes. Medicare's clinician data says Gary M. Greenberg 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 M. Greenberg?
- (800) 813-2000, as listed in official Medicare / NPI Registry data.
- What is Gary M. Greenberg's NPI number?
- 1720070683. 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 M. Greenberg works
Medicare's Facility Affiliation Data lists Gary M. Greenberg at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital WestsideHillsboro, OR · Acute Care Hospital · CCN 380103
- Kaiser Sunnyside Medical CenterClackamas, OR · Acute Care Hospital · CCN 380091
- Providence Seaside HospitalSeaside, OR · Critical Access Hospital · CCN 381303
Practice locations
Addresses where Gary M. Greenberg is enrolled with Medicare (CMS data updated 2026-10-02).
- 2875 NE Stucki AveHillsboro, OR 97124 (800) 813‑2000
Group practices
Medicare enrollment lists Gary M. Greenberg as a member of this group (CMS data updated 2026-10-02).
- Kaiser Foundation Health Plan of the Northwest1,807 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Oregon →
Other cardiologists in Oregon
Clinicians with the same Medicare primary specialty in Oregon — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720070683 |
| 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