Shirley M. Chan
NPI 1609830348ActiveIndividual· Obstetrics & Gynecology· Glendale, CA
Obstetrics & Gynecology in Glendale, California, licensed in CA, with an NPI issued in April 2006. Their prescriptions cost Medicare Part D more than their services did: $6,156 for 57 claims, against $886.69 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 7 companies reporting payments in 2025, $415.94 in all, mostly food and beverage.
Overview
| NPI | 1609830348 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Apr 12, 2006 |
| Last updated in NPPES | Jun 27, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | G58168 | 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 | 11 |
|---|---|
| Services billed | 13 across 3 procedure codes |
| Paid by Medicare | $886.69 |
Part D prescriptions in 2024
| Prescriptions (claims) | 57 · 118 30-day fills |
|---|---|
| Patients | 14 |
| Total drug cost | $6,156 |
| Generic share | 81% of claims |
Industry payments (Open Payments)
- 2025$415.94 · 13 payments from 7 companies
- 2024$140.23 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $158.13 | 2 |
| Mayne Pharma Commercial LLC | $85.31 | 4 |
| Supernus Pharmaceuticals, Inc. | $54.58 | 2 |
| Sage Therapeutics, LLC | $54.58 | 2 |
| Pfizer Inc. | $25.34 | 1 |
What the 2025 payments were for
- Food and Beverage$415.94 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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