Cassandra Anandappa Tamayo, DO
NPI 1326578089ActiveIndividual· Family Medicine· Grove City, OH
Family Medicine (DO) in Grove City, Ohio, trained at Midwestern University, Chicago College of Osteopathic Med (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $502,788 for 4,863 claims, against $22,901 paid for services in 2024. Dexcom, Inc. was the largest of 16 companies reporting payments in 2025, $552.65 in all, mostly food and beverage.
Overview
| NPI | 1326578089 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 15, 2017 |
| Last updated in NPPES | Jul 27, 2020 |
| Certified by provider | Jul 27, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 34.014696 | OH |
| Student in an Organized Health Care Education/Training Program | 390200000X | 125071162 | IL |
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 - Family Practice (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 77 |
|---|---|
| Services billed | 407 across 36 procedure codes |
| Paid by Medicare | $22,901 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,863 · 11,216 30-day fills |
|---|---|
| Patients | 345 |
| Total drug cost | $502,788 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Midwestern University, Chicago College of Osteopathic Med |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Family Practice |
Medical group
- Mount Carmel Healthproviders IncGrove City, OH · 142 clinicians
Hospital affiliations
- Mount Carmel East & WestColumbus, OH
- Mount Carmel St Ann'sWesterville, OH
Industry payments (Open Payments)
- 2025$552.65 · 29 payments from 16 companies
- 2024$461.33 · 24 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $71.65 | 3 |
| Abbvie Inc. | $66.99 | 4 |
| Astrazeneca Pharmaceuticals LP | $66.36 | 4 |
| Exact Sciences Corporation | $51.07 | 2 |
| Lilly USA, LLC | $34.77 | 2 |
What the 2025 payments were for
- Food and Beverage$552.65 · 29 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 67 family medicine physicians in Grove City · All family medicine physicians in Ohio