Nathaniel Jay Kohlenberg, MD
NPI 1134616048ActiveIndividual· Psychiatry & Neurology, Psychiatry· Bryn Mawr, PA
Psychiatry & Neurology, Psychiatry (MD) in Bryn Mawr, Pennsylvania, trained at University of Wisconsin School of Medicine (class of 2018). 40 Medicare patients in 2024, $38,052 paid; nearly all of their 126 Part D prescriptions were generic (92%).
Overview
| NPI | 1134616048 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 16, 2018 |
| Last updated in NPPES | Aug 7, 2022 |
| Certified by provider | Aug 7, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | MD471394 | PA |
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 - Psychiatry (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 40 |
|---|---|
| Services billed | 498 across 9 procedure codes |
| Paid by Medicare | $38,052 |
Part D prescriptions in 2024
| Prescriptions (claims) | 126 · 133 30-day fills |
|---|---|
| Patients | 31 |
| Total drug cost | $19,494 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Psychiatry |
Medical group
- Main Line HealthcareWynewood, PA · 1,184 clinicians
Hospital affiliation
- Bryn Mawr HospitalBryn Mawr, PA
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 68 psychiatrists in Bryn Mawr · All psychiatrists in Pennsylvania