Clarence A. Parks, M.D.
NPI 1245203512ActiveIndividual· Pediatrics· Chicago, IL
Pediatrics (M.D.) in Chicago, Illinois, trained at Rush Medical College of Rush University (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $209,336 for 400 claims, against $5,912 paid for services in 2024. Emd Serono, Inc. reported $28.62 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1245203512 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 8, 2006 |
| Last updated in NPPES | Jun 3, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics Primary | 208000000X | 036-105357 | IL |
| Internal Medicine | 207R00000X | 036105357 | IL |
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 - Hospitalist (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 67 |
|---|---|
| Services billed | 89 across 14 procedure codes |
| Paid by Medicare | $5,912 |
Part D prescriptions in 2024
| Prescriptions (claims) | 400 · 473 30-day fills |
|---|---|
| Patients | 108 |
| Total drug cost | $209,336 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- Freeport Memorial HospitalFreeport, IL · 178 clinicians
Hospital affiliation
- Fhn Memorial HospitalFreeport, IL
Industry payments (Open Payments)
- 2025$28.62 · 2 payments from 1 company
- 2024$70.31 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Emd Serono, Inc. | $28.62 | 2 |
What the 2025 payments were for
- Food and Beverage$28.62 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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