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

Dr. Dennis Alan Peacock, MD

Individual provider Internal Medicine Physician · NPI 1023223021

Dr. Dennis Alan Peacock, MD is an Internal Medicine in Chicago, Illinois. Graduated from University of Tennessee, Hsc, College of Medicine in 2004, 22 years ago. Practices with Loyola University Medical Center, a 946-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Louisiana.

Years since qualifying
22
Trained at
University of Tennessee, Hsc, College of Medicine
Licensed in
IL, LA
In the registry since
2007
Specialties on file
4
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

1333 W Belmont Ave Ste 100
Chicago, IL 60657
Phone: (312) 694-2273
Fax: (312) 694-1875
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 635 N Dearborn St Ste 100, Chicago, IL 60654-4618 — (312) 694-2273

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036.141382 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 200700 (LA)
Pediatrics Physician Taxonomy 208000000X · Licence 036.141382 (IL)
Pediatrics Physician Taxonomy 208000000X · Licence 200700 (LA)

Record details

NPI number1023223021
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 11, 2007
Last updated in NPPESMay 27, 2022
Certification dateMay 27, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolUNIVERSITY OF TENNESSEE, HSC, COLLEGE OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Loyola University Medical Center — 946 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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