Dianna Yan, M.D.
NPI 1710928411ActiveIndividual· Obstetrics & Gynecology· Gaithersburg, MD
Obstetrics & Gynecology (M.D.) in Gaithersburg, Maryland, trained at Texas Tech University Health Science Center School of Medicine (class of 1988). 69 Medicare patients in 2024, $17,570 paid; nearly all of their 244 Part D prescriptions were generic (92%). Aerin Medical Inc. reported $90.57 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1710928411 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 10, 2006 |
| Last updated in NPPES | Jul 16, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | D43385 | MD |
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 - Obstetrics/Gynecology (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 69 |
|---|---|
| Services billed | 245 across 11 procedure codes |
| Paid by Medicare | $17,570 |
Part D prescriptions in 2024
| Prescriptions (claims) | 244 · 287 30-day fills |
|---|---|
| Patients | 79 |
| Total drug cost | $4,383 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Texas Tech University Health Science Center School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Obstetrics/Gynecology |
Industry payments (Open Payments)
- 2025$90.57 · 1 payment from 1 company
- 2024$146.26 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aerin Medical Inc. | $90.57 | 1 |
What the 2025 payments were for
- Food and Beverage$90.57 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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