Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Clarence A Parks, MD

Individual provider Internal Medicine Physician · NPI 1245203512

Clarence A Parks, MD is a Hospitalist in Chicago, Illinois. Graduated from Rush Medical College of Rush University in 1997, 29 years ago. Practices with Freeport Memorial Hospital, a 140-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
29
Trained at
Rush Medical College of Rush University
Licensed in
IL
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1645 W Jackson Blvd Ste 215
Chicago, IL 60612-3276 Not confirmed with CMS for 17 years — call before visiting
Phone: (312) 942-6800
Fax: (312) 942-3551
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 036-105357 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036105357 (IL)

Record details

NPI number1245203512
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 8, 2006
Last updated in NPPESJune 3, 2009

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 1997 (29 years in practice)
Group practice Freeport Memorial Hospital — 140 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients67
Services billed 89 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Freeport Memorial Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 140 clinicians in the practice; 12 are shown here.

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