Vivian Y. Pao, MD
NPI 1265604870ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Timonium, MD
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Timonium, Maryland, trained at Washington University School of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $541,743 for 1,483 claims, against $278,653 paid for services in 2024. Corcept Therapeutics was the largest of 20 companies reporting payments in 2025, $663.64 in all, mostly food and beverage.
Overview
| NPI | 1265604870 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 24, 2008 |
| Last updated in NPPES | May 9, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | D68920 | MD |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | A85813 | CA |
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 - Endocrinology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 543 |
|---|---|
| Services billed | 10,539 across 24 procedure codes |
| Paid by Medicare | $278,653 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,483 · 3,980 30-day fills |
|---|---|
| Patients | 271 |
| Total drug cost | $541,743 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | Washington University School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Privia Medical Group, LLCFairfax, VA · 1,533 clinicians
Hospital affiliations
- Greater Baltimore Medical CenterBaltimore, MD
- University of MD St Joseph Medical CenterTowson, MD
Industry payments (Open Payments)
- 2025$663.64 · 31 payments from 20 companies
- 2024$695.65 · 31 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $92.53 | 4 |
| Abbvie Inc. | $54.25 | 3 |
| Insulet Corporation | $49.01 | 2 |
| Alexion Pharmaceuticals, Inc. | $45.96 | 2 |
| Cequr Corporation | $43.73 | 2 |
What the 2025 payments were for
- Food and Beverage$663.64 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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