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

Dr. Colleen Ann Keegan, DO

Individual provider Dermatology Physician · NPI 1497937106

Dr. Colleen Ann Keegan, DO is a Dermatology in Naperville, Illinois. Graduated from Chicago College of Osteopathy in 1986, 40 years ago. Practices with Central Dupage Physician Group, a 1,094-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
40
Trained at
Chicago College of Osteopathy
Licensed in
IL
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

636 Raymond Dr Ste 200
Naperville, IL 60563-9791
Phone: (630) 315-6500
Fax: (630) 315-6519
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 036-076923 (IL)

Record details

NPI number1497937106
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedDecember 4, 2007
Last updated in NPPESJune 25, 2025
Certification dateJune 25, 2025

Medicare enrollment

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

Medicare specialtyDERMATOLOGY
Medical schoolCHICAGO COLLEGE OF OSTEOPATHY
Graduated 1986 (40 years in practice)
Group practice Central Dupage Physician Group — 1094 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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