Susan Stephanie Garcia Castillo, MD
NPI 1912493669ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Macon, GA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Thomas C Jones, M.D., P.C., practicing in Macon, Georgia. Their prescriptions cost Medicare Part D more than their services did: $1,914,333 for 3,544 claims, against $60,152 paid for services in 2024. Novo Nordisk Inc was the largest of 26 companies reporting payments in 2025, $2,170 in all, mostly food and beverage. Lists Emory Houston Hospital Warner Robins as a hospital affiliation.
Overview
| NPI | 1912493669 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 5, 2018 |
| Last updated in NPPES | Aug 16, 2023 |
| Certified by provider | Aug 16, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 93030 | GA |
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 - Endocrinology (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 328 |
|---|---|
| Services billed | 4,705 across 40 procedure codes |
| Paid by Medicare | $60,152 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,544 · 7,509 30-day fills |
|---|---|
| Patients | 500 |
| Total drug cost | $1,914,333 |
| Generic share | 37% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Endocrinology |
Medical group
- Thomas C Jones, M.D., P.C.Macon, GA · 13 clinicians
Hospital affiliation
- Emory Houston Hospital Warner RobinsWarner Robins, GA
Industry payments (Open Payments)
- 2025$2,170 · 110 payments from 26 companies
- 2024$2,291 · 98 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $476.50 | 22 |
| Novartis Pharmaceuticals Corporation | $191.39 | 14 |
| Amgen Inc. | $175.10 | 16 |
| Radius Health, Inc. | $173.04 | 3 |
| Lilly USA, LLC | $153.49 | 10 |
What the 2025 payments were for
- Food and Beverage$2,160 · 109 payments
- Education$10.02 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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