Charles Castellano, MD
NPI 1396845632ActiveIndividual· Internal Medicine· Florham Park, NJ
Internal Medicine (MD) with Summit Medical Group PA, practicing in Florham Park, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $240,596 for 3,377 claims, against $123,699 paid for services in 2024. Lists Jfk University Medical Center as a hospital affiliation.
Overview
| NPI | 1396845632 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 25, 2006 |
| Last updated in NPPES | Feb 13, 2026 |
| Certified by provider | Feb 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 25MA10528500 | NJ |
| Internal Medicine | 207R00000X | 232228 | NY |
| Pediatrics | 208000000X | 232228 | NY |
| Pediatrics | 208000000X | 25MA10528500 | NJ |
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 (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 323 |
|---|---|
| Services billed | 2,083 across 70 procedure codes |
| Paid by Medicare | $123,699 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,377 · 8,682 30-day fills |
|---|---|
| Patients | 374 |
| Total drug cost | $240,596 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
| Telehealth | Offers telehealth |
Medical group
- Summit Medical Group PABerkeley Heights, NJ · 1,212 clinicians
Hospital affiliation
- Jfk University Medical CenterEdison, NJ
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 internal medicine physicians in Florham Park · All internal medicine physicians in New Jersey