Marguerite Yao, MD
NPI 1093030264ActiveIndividual· Internal Medicine· Chapel Hill, NC
Internal Medicine (MD) in Chapel Hill, North Carolina, trained at Northwestern University Feinberg Medical School (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $448,082 for 4,853 claims, against $57,573 paid for services in 2024. Ardelyx, Inc. was the largest of 4 companies reporting payments in 2025, $149.04 in all, mostly food and beverage.
Overview
| NPI | 1093030264 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 31, 2010 |
| Last updated in NPPES | Aug 21, 2021 |
| Certified by provider | Aug 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2013-00760 | NC |
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 (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 240 |
|---|---|
| Services billed | 1,399 across 50 procedure codes |
| Paid by Medicare | $57,573 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,853 · 11,014 30-day fills |
|---|---|
| Patients | 407 |
| Total drug cost | $448,082 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Unc Physicians Network LLCKinston, NC · 998 clinicians
Hospital affiliations
- Rex HospitalRaleigh, NC
- Unc HospitalsChapel Hill, NC
Industry payments (Open Payments)
- 2025$149.04 · 7 payments from 4 companies
- 2024$30.98 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $69.43 | 3 |
| Viatris Specialty LLC | $42.52 | 2 |
| Janssen Biotech, Inc. | $20.90 | 1 |
| Genzyme Corporation | $16.19 | 1 |
What the 2025 payments were for
- Food and Beverage$149.04 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 235 internal medicine physicians in Chapel Hill · All internal medicine physicians in North Carolina