Mark Steven Costello Jr., M.D.
NPI 1497103550ActiveIndividual· Otolaryngology· Charleston, SC
Otolaryngology (M.D.) in Charleston, South Carolina, trained at University of Cincinnati College of Medicine (class of 2016). 421 Medicare patients in 2024, $65,863 paid; nearly all of their 670 Part D prescriptions were generic (97%). Regeneron Healthcare Solutions, Inc. reported $82.01 in payments in 2025, mostly education.
Overview
| NPI | 1497103550 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 31, 2016 |
| Last updated in NPPES | May 31, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | MMD.39504 LL | SC |
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 - Otolaryngology (KY); Practitioner - Otolaryngology (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 421 |
|---|---|
| Services billed | 1,087 across 56 procedure codes |
| Paid by Medicare | $65,863 |
Part D prescriptions in 2024
| Prescriptions (claims) | 670 · 966 30-day fills |
|---|---|
| Patients | 280 |
| Total drug cost | $12,266 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | University of Cincinnati College of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Otolaryngology |
Medical group
- Christ Hospital Medical Specialists LLCCincinnati, OH · 125 clinicians
Hospital affiliation
- Christ HospitalCincinnati, OH
Industry payments (Open Payments)
- 2025$82.01 · 2 payments from 1 company
- 2024$28.30 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $82.01 | 2 |
What the 2025 payments were for
- Education$56.01 · 1 payment
- Food and Beverage$26.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 97 otolaryngologists in Charleston · All otolaryngologists in South Carolina