Sangbaek Charles Oh, MD
NPI 1578513131ActiveIndividual· Internal Medicine, Gastroenterology· Glen Ridge, NJ
Internal Medicine, Gastroenterology (MD) in Glen Ridge, New Jersey, trained at Icahn School of Medicine at Mount Sinai (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $341,768 for 831 claims, against $142,442 paid for services in 2024. Corcept Therapeutics was the largest of 20 companies reporting payments in 2025, $1,177 in all, mostly food and beverage.
Overview
| NPI | 1578513131 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 12, 2006 |
| Last updated in NPPES | Jun 29, 2020 |
| Certified by provider | Jun 29, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 25MA06878700 | 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 - Gastroenterology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 447 |
|---|---|
| Services billed | 1,480 across 32 procedure codes |
| Paid by Medicare | $142,442 |
Part D prescriptions in 2024
| Prescriptions (claims) | 831 · 1,396 30-day fills |
|---|---|
| Patients | 216 |
| Total drug cost | $341,768 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Icahn School of Medicine at Mount Sinai |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Mpv New Jersey MD Services PCDumont, NJ · 151 clinicians
Hospital affiliation
- Hackensack Meridian Mountainside MedicalMontclair, NJ
Industry payments (Open Payments)
- 2025$1,177 · 57 payments from 20 companies
- 2024$310.40 · 17 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $423.77 | 16 |
| Abbvie Inc. | $150.37 | 9 |
| Xeris Pharmaceuticals, Inc. | $98.69 | 5 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $67.16 | 4 |
| Radius Health, Inc. | $52.41 | 3 |
What the 2025 payments were for
- Food and Beverage$1,177 · 57 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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