Karen Chu, MD
NPI 1053436899ActiveIndividual· Obstetrics & Gynecology· San Francisco, CA
Obstetrics & Gynecology (MD) in San Francisco, California, trained at State University of New York Downstate Medical Center (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $29,106 for 172 claims, against $9,454 paid for services in 2024. Astellas Pharma US Inc was the largest of 10 companies reporting payments in 2025, $307.57 in all, mostly food and beverage.
Overview
| NPI | 1053436899 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 20, 2007 |
| Last updated in NPPES | Apr 9, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | A84215 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 50 |
|---|---|
| Services billed | 110 across 13 procedure codes |
| Paid by Medicare | $9,454 |
Part D prescriptions in 2024
| Prescriptions (claims) | 172 · 355 30-day fills |
|---|---|
| Patients | 81 |
| Total drug cost | $29,106 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | State University of New York Downstate Medical Center |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Regents Univ of California UCSFSan Francisco, CA · 283 clinicians
Hospital affiliation
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA
Industry payments (Open Payments)
- 2025$307.57 · 13 payments from 10 companies
- 2024$269.22 · 11 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $80.59 | 3 |
| Millicent US Inc | $38.35 | 2 |
| Coopersurgical, Inc. | $30.56 | 1 |
| Shield Therapeutics Inc | $26.98 | 1 |
| Vertex Pharmaceuticals Incorporated | $26.72 | 1 |
What the 2025 payments were for
- Food and Beverage$307.57 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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