Zacharia David Greenlee, PA-C
NPI 1427469097ActiveIndividual· Physician Assistant· Walnut Creek, CA
Physician Assistant (PA-C) with Bristol Bay Area Health Corporation and 1 other group, practicing in Walnut Creek, California. Their prescriptions cost Medicare Part D more than their services did: $3,669 for 187 claims, against $1,487 paid for services in 2024. Medtronic, Inc. was the largest of 3 companies reporting payments in 2024, $163.19 in all, mostly food and beverage. Lists Bristol Bay DBA Kanakanak Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1427469097 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | May 16, 2014 |
| Last updated in NPPES | May 16, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 51592 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (AK); Practitioner - Physician Assistant (CA); Practitioner - Physician Assistant (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 12 |
|---|---|
| Services billed | 15 across 14 procedure codes |
| Paid by Medicare | $1,487 |
Part D prescriptions in 2024
| Prescriptions (claims) | 187 · 236 30-day fills |
|---|---|
| Patients | 89 |
| Total drug cost | $3,669 |
| Generic share | 97% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- Bristol Bay Area Health CorporationDillingham, AK · 112 clinicians
- Mountain Valleys Health CentersFall River Mills, CA · 33 clinicians
Hospital affiliations
- Bristol Bay DBA Kanakanak HospitalDillingham, AK
- Mayers Memorial HospitalFall River Mills, CA
Industry payments (Open Payments)
- 2024$163.19 · 5 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $93.55 | 1 |
| Novo Nordisk Inc | $55.64 | 3 |
| Lilly USA, LLC | $14.00 | 1 |
What the 2024 payments were for
- Food and Beverage$163.19 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 95 physician assistants in Walnut Creek · All physician assistants in California