Cassidy Bennett Sullivan, M.D.
NPI 1821483900ActiveIndividual· Obstetrics & Gynecology· Long Beach, CA
Obstetrics & Gynecology (M.D.) with Memorialcare Medical Foundation, practicing in Long Beach, California. Mostly services rather than prescriptions: Medicare paid $2,781 for 25 patients in 2024, with only 35 Part D claims. Abbvie Inc. was the largest of 7 companies reporting payments in 2025, $436.05 in all, mostly food and beverage. Lists Memorialcare Long Beach Medical Center as a hospital affiliation.
Overview
| NPI | 1821483900 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 5, 2015 |
| Last updated in NPPES | Aug 15, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | A163333 | 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 | 25 |
|---|---|
| Services billed | 44 across 14 procedure codes |
| Paid by Medicare | $2,781 |
Part D prescriptions in 2024
| Prescriptions (claims) | 35 · 78 30-day fills |
|---|---|
| Patients | 17 |
| Total drug cost | $3,673 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Memorialcare Medical FoundationLong Beach, CA · 566 clinicians
Hospital affiliation
- Memorialcare Long Beach Medical CenterLong Beach, CA
Industry payments (Open Payments)
- 2025$436.05 · 19 payments from 7 companies
- 2024$490.69 · 18 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $146.21 | 8 |
| Mayne Pharma Commercial LLC | $125.72 | 4 |
| Sage Therapeutics, LLC | $45.43 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $38.92 | 2 |
| Sumitomo Pharma America, Inc. | $31.93 | 1 |
What the 2025 payments were for
- Food and Beverage$436.05 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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