Colleen Ann Keegan, D.O.
Dermatology Physician · Naperville, IL
Colleen Ann Keegan, D.O. is a dermatology physician with a practice address in Naperville, Illinois, and NPI 1497937106, issued on Dec 4, 2007. Check the license (Illinois 036-076923, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Colleen Ann Keegan
- Credential
- D.O.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 036-076923 IL
Self-reported in NPPES; status is on the state search - Practice location
- 636 Raymond Dr Ste 200, Naperville, IL 60563
- Phone
- (630) 315-6500
- Enumerated
- Dec 4, 2007
- Record last updated
- Jun 25, 2025
- Fax
- (630) 315-6519
- Medicare enrollment
- Enrolled (PECOS I20041213000783); accepts Medicare assignment
- Medical or professional school
- Chicago College Of Osteopathy, 1986
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 636 Raymond Dr Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine Amstadt, MDInternal Medicine Physician1265514962
- Aman Dhawan, MDFamily Medicine Physician1457384109
- Kathleen Remlinger, MDDermatology Physician1083609028
- Jacquelyn Sink, MDDermatology Physician1861887960
Verify Colleen Ann Keegan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036-076923Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% more Medicare Part D claims than the average dermatology physician in 2024
940 Medicare Part D claims for 274 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Ketoconazole149 claims
- Triamcinolone Acetonide98 claims
- Clobetasol Propionate56 claims
- Metronidazole53 claims
- Doxycycline Hyclate43 claims
- Spironolactone43 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Central Dupage Physician GroupNaperville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dermatology Physician providers in Illinois
There are 647 dermatology physician records in Illinois.
Other dermatology physician records in Illinois
- Kelly Abate, M.D.New Lenox, IL1528141116
- Cynthia Abban, MD/PHDGurnee, IL1841556735
- Nadine Abouchaleh, MDSchaumburg, IL1265173736
- Melissa Abrams, M.D.Vernon Hills, IL1023284635
- Beth Adams, M.D.Chicago, IL1376751255
- Sarah Adams, MDChicago, IL1366784910
- Ademola Adeoshun, MDOak Lawn, IL1609579812
- Oyinade Aderibigbe, M.D.Chicago, IL1366823544
- Motunrayo Adisa, M.DKenilworth, IL1326229121
- Prachi AggarwalChicago, IL1770129751
Common questions
What is Colleen Ann Keegan, D.O.'s NPI number?
Colleen Ann Keegan, D.O.'s National Provider Identifier (NPI) is 1497937106, issued on Dec 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Colleen Ann Keegan, D.O. located?
The NPPES record lists a practice address at 636 Raymond Dr Ste 200, Naperville, IL, 60563. Phone: (630) 315-6500. Providers update this record themselves, so call before visiting.
How can I verify Colleen Ann Keegan, D.O.'s license?
NPPES lists Illinois license number 036-076923, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Colleen Ann Keegan, D.O. prescribe under Medicare Part D?
In 2024, Colleen Ann Keegan, D.O. had 940 Medicare Part D claims for 274 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Colleen Ann Keegan, D.O.'s MIPS final score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.