Chad J. Zik, M.D.
NPI 1134509359ActiveIndividual· Internal Medicine· Annandale, VA
Internal Medicine (M.D.) in Annandale, Virginia, trained at University of Maryland School of Medicine (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $526,405 for 352 claims, against $6,092 paid for services in 2024. Chiesi USA, Inc. reported $300.00 in payments in 2025, mostly honoraria.
Overview
| NPI | 1134509359 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 3, 2015 |
| Last updated in NPPES | Mar 10, 2022 |
| Certified by provider | Mar 10, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 0101262749 | VA |
| Hospitalist | 208M00000X | 0116028024 | VA |
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 - Internal Medicine (DC); Practitioner - Internal Medicine (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 19 |
|---|---|
| Services billed | 110 across 4 procedure codes |
| Paid by Medicare | $6,092 |
Part D prescriptions in 2024
| Prescriptions (claims) | 352 · 450 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $526,405 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Inova Health Care ServicesAlexandria, VA · 1,817 clinicians
Hospital affiliation
- Inova Fairfax HospitalFalls Church, VA
Industry payments (Open Payments)
- 2025$300.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Chiesi USA, Inc. | $300.00 | 1 |
What the 2025 payments were for
- Honoraria$300.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 38 internal medicine physicians in Annandale · All internal medicine physicians in Virginia