Quick answers
- Which hospitals does David Greentree work at?
- Medicare's official clinician data lists David Greentree at 1 hospital: Mercy Medical Center Redding. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David Greentree see patients?
- Medicare's clinician data lists 1 practice location in Redding, CA. Call before your visit to confirm the address.
- What is David Greentree's specialty?
- Medicare lists Thoracic Surgery as the primary specialty.
- Does David Greentree accept Medicare assignment?
- Yes. Medicare's clinician data says David Greentree 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 David Greentree?
- (530) 225-7779, as listed in official Medicare / NPI Registry data.
- What is David Greentree's NPI number?
- 1972208023. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David Greentree works
Medicare's Facility Affiliation Data lists David Greentree at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Medical Center ReddingRedding, CA · Acute Care Hospital · CCN 050280
Practice locations
Addresses where David Greentree is enrolled with Medicare (CMS data updated 2026-10-02).
- 2175 Rosaline AveRedding, CA 96001 (530) 225‑7779
Group practices
Medicare enrollment lists David Greentree as a member of this group (CMS data updated 2026-10-02).
- Dignity Health86 clinicians in the group
Specialties
- Thoracic Surgeryprimary
Other thoracic surgeons in Redding
Clinicians with the same Medicare primary specialty in Redding, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Alberta, Faculty Of Medicine |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972208023 |
| 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