Cassandra Linnea Williams, DO
NPI 1487396511ActiveIndividual· Anesthesiology· Warrensville Heights, OH
Anesthesiology (DO) in Warrensville Heights, Ohio, licensed in OH, with an NPI issued in April 2022. Enrolled in Medicare as practitioner - anesthesiology. Merck Sharp & Dohme LLC reported $37.29 in payments in 2025, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1487396511 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Apr 9, 2022 |
| Last updated in NPPES | Jun 18, 2026 |
| Certified by provider | Jun 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 34.018773 | OH |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in Ohio, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Cassandra Williams · Home Health Agency | 1128a1 | Mar 20, 2023 | Columbus, OH |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | Possible (name) | Excluded · since Jan 3, 2023 · OH |
| 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 - Anesthesiology (OH) |
|---|
Industry payments (Open Payments)
- 2025$37.29 · 2 payments from 1 company
- 2024$31.77 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $37.29 | 2 |
What the 2025 payments were for
- Food and Beverage$37.29 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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