Charlene Zhiyi Chao, MD
NPI 1396756219ActiveIndividual· Surgery· Brooklyn, NY
Surgery (MD) in Brooklyn, New York, trained at State University of New York Downstate Medical Center (class of 2001). 23 Medicare patients in 2024, $8,000 paid; nearly all of their 251 Part D prescriptions were generic (98%). Advanced Oxygen Therapy Inc. reported $291.38 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1396756219 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 10, 2006 |
| Last updated in NPPES | Dec 23, 2024 |
| Certified by provider | Dec 19, 2024 |
| Reactivated | Aug 24, 2006 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 243672 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 23 |
|---|---|
| Services billed | 63 across 17 procedure codes |
| Paid by Medicare | $8,000 |
Part D prescriptions in 2024
| Prescriptions (claims) | 251 · 255 30-day fills |
|---|---|
| Patients | 165 |
| Total drug cost | $1,412 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | State University of New York Downstate Medical Center |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | General Surgery |
Medical group
- Maimonides Medical Center General Surgery FppBrooklyn, NY · 13 clinicians
Hospital affiliations
- Maimonides Medical CenterBrooklyn, NY
- New York Community Hospital of Brooklyn, Inc.Brooklyn, NY
Industry payments (Open Payments)
- 2025$291.38 · 6 payments from 1 company
- 2024$277.95 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Advanced Oxygen Therapy Inc. | $291.38 | 6 |
What the 2025 payments were for
- Food and Beverage$291.38 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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