Zachary Celestino Diiulio, M.D.
NPI 1194187518ActiveIndividual· Internal Medicine· Yakima, WA
Internal Medicine (M.D.) in Yakima, Washington, trained at Medical College of Georgia School of Medicine (class of 2016). In 2024 Medicare paid $84,500 for 218 patients, and Part D covered 364 of their prescriptions, 86% of them generic.
Overview
| NPI | 1194187518 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Mar 24, 2016 |
| Last updated in NPPES | Jul 25, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 60904809 | WA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 218 |
|---|---|
| Services billed | 882 across 8 procedure codes |
| Paid by Medicare | $84,500 |
Part D prescriptions in 2024
| Prescriptions (claims) | 364 · 464 30-day fills |
|---|---|
| Patients | 141 |
| Total drug cost | $22,710 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Medical College of Georgia School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Internal Medicine |
Medical group
- Overlake Medical Clinics LLCBellevue, WA · 425 clinicians
Hospital affiliation
- Overlake Hospital Medical Center & ClinicsBellevue, WA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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