James R. Diesfeld, M.D.
NPI 1497753214ActiveIndividual· Pain Medicine, Interventional Pain Medicine· Chicago, IL
Pain Medicine, Interventional Pain Medicine (M.D.) in Chicago, Illinois, licensed in IL, with an NPI issued in July 2005. 114 Medicare patients in 2024, $25,650 paid; nearly all of their 94 Part D prescriptions were generic (98%). Abbott Laboratories was the largest of 12 companies reporting payments in 2025, $1,033 in all, mostly food and beverage. Lists Humboldt Park Health and 1 other hospital as hospital affiliations.
Overview
| NPI | 1497753214 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 14, 2005 |
| Last updated in NPPES | May 20, 2022 |
| Certified by provider | May 20, 2022 |
| Reactivated | Mar 24, 2006 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pain Medicine, Interventional Pain Medicine Primary | 208VP0014X | 036086023 | IL |
| Durable Medical Equipment & Medical Supplies | 332B00000X | — | — |
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 - Interventional Pain Management (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 114 |
|---|---|
| Services billed | 1,077 across 22 procedure codes |
| Paid by Medicare | $25,650 |
Part D prescriptions in 2024
| Prescriptions (claims) | 94 · 119 30-day fills |
|---|---|
| Patients | 36 |
| Total drug cost | $3,367 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Interventional Pain Management |
| Secondary specialties | Anesthesiology |
Hospital affiliations
- Humboldt Park HealthChicago, IL
- St Bernard HospitalChicago, IL
Industry payments (Open Payments)
- 2025$1,033 · 63 payments from 12 companies
- 2024$2,262 · 55 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $722.34 | 16 |
| Pfizer Inc. | $58.84 | 2 |
| Boston Scientific Corporation | $48.26 | 1 |
| Teva Pharmaceuticals USA, Inc. | $29.97 | 1 |
| Neuros Medical, Inc. | $26.16 | 1 |
What the 2025 payments were for
- Food and Beverage$1,033 · 63 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 56 interventional pain physicians in Chicago · All interventional pain physicians in Illinois