Quick answers
- Does Zacharia D. Greenlee accept Medicare assignment?
- Yes. Medicare's clinician data says Zacharia D. Greenlee accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Zacharia D. Greenlee see?
- In 2024, CMS data shows 12 Original Medicare patients and 15 services for Zacharia D. Greenlee. This counts Original Medicare only and measures volume, not quality.
- What is Zacharia D. Greenlee's NPI number?
- 1427469097. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Zacharia D. Greenlee, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 12 |
|---|---|
| Services billed to Medicare | 15 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 59 |
Hospitals where Zacharia D. Greenlee works
Medicare's Facility Affiliation Data lists Zacharia D. Greenlee at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Bristol Bay dba Kanakanak HospitalDillingham, AK · Critical Access Hospital · Emergency services: listed by Medicare · CCN 021309
- Mayers Memorial HospitalFall River Mills, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051305
Practice locations
Addresses where Zacharia D. Greenlee is enrolled with Medicare (CMS data updated October 2, 2026).
- 43658 Hwy 299Fall River Mills, CA 96028 (530) 999‑9020
- 6000 Kanakanak RdDillingham, AK 99576 (907) 842‑5201
- P O BoxDillingham, AK 99576
- PO Box, Suite 130Dillingham, AK 99576 (907) 842‑5201
Group practices
Medicare enrollment lists Zacharia D. Greenlee as a member of these groups (CMS data updated October 2, 2026).
- Bristol Bay Area Health Corporation112 clinicians in the group
- Mountain Valleys Health Centers33 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Bristol Bay Area Health Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427469097 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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