John Klein
NPI 1669834313ActiveIndividual· Surgery· Chicago, IL
Surgery in Chicago, Illinois, trained at University of Texas Medical School at San Antonio (class of 2016). In 2024 Medicare paid $11,680 for 35 patients, and Part D covered 56 of their prescriptions, 88% of them generic. Transmedics, Inc. was the largest of 2 companies reporting payments in 2025, $1,680 in all, mostly travel and lodging.
Overview
| NPI | 1669834313 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 22, 2016 |
| Last updated in NPPES | Apr 30, 2026 |
| Certified by provider | Apr 30, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 036170489 | IL |
| Surgery | 208600000X | MD494214 | PA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
| Surgery | 208600000X | 179663 | CA |
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 - General Surgery (IL); Practitioner - General Surgery (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 35 |
|---|---|
| Services billed | 81 across 9 procedure codes |
| Paid by Medicare | $11,680 |
Part D prescriptions in 2024
| Prescriptions (claims) | 56 · 65 30-day fills |
|---|---|
| Patients | 16 |
| Total drug cost | $7,502 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | General Surgery |
Medical groups
- Rush University Medical GroupChicago, IL · 1,551 clinicians
- Pinnacle Health Medical ServicesHarrisburg, PA · 1,019 clinicians
Hospital affiliations
- Rush Oak Park HospitalOak Park, IL
- Upmc HanoverHanover, PA
Industry payments (Open Payments)
- 2025$1,680 · 8 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Transmedics, Inc. | $1,276 | 2 |
| Intuitive Surgical, Inc. | $403.57 | 6 |
What the 2025 payments were for
- Travel and Lodging$1,680 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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