Daniel Castro, MD
NPI 1821002700ActiveIndividual· Internal Medicine· Morristown, TN
Internal Medicine (MD) in Morristown, Tennessee, licensed in TN, with an NPI issued in July 2006. Their prescriptions cost Medicare Part D more than their services did: $900,463 for 1,880 claims, against $16,089 paid for services in 2024. Novo Nordisk Inc was the largest of 10 companies reporting payments in 2025, $319.43 in all, mostly food and beverage.
Overview
| NPI | 1821002700 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 28, 2006 |
| Last updated in NPPES | Oct 10, 2023 |
| Certified by provider | Oct 10, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD0000056844 | TN |
| Internal Medicine, Geriatric Medicine | 207RG0300X | MD0000056844 | TN |
| Hospitalist | 208M00000X | MD0000056844 | TN |
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 - Internal Medicine (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 43 |
|---|---|
| Services billed | 333 across 9 procedure codes |
| Paid by Medicare | $16,089 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,880 · 3,669 30-day fills |
|---|---|
| Patients | 280 |
| Total drug cost | $900,463 |
| Generic share | 45% of claims |
Industry payments (Open Payments)
- 2025$319.43 · 18 payments from 10 companies
- 2024$204.07 · 10 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $59.56 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $59.52 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $49.39 | 3 |
| Sequel Med Tech, LLC | $35.25 | 2 |
| Beta Bionics, Inc. | $24.19 | 1 |
What the 2025 payments were for
- Food and Beverage$319.43 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 internal medicine physicians in Morristown · All internal medicine physicians in Tennessee