DR. COLLEEN ANN KEEGAN D.O.
NPI 1497937106
Dermatology in Naperville, IL

Active since December 04, 2007PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
636 RAYMOND DR STE 200, NAPERVILLE, IL 60563(630) 315-6500(630) 315-6519 Get Directions Write a Review

NPPES record last updated: June 25, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jun 25, 2025, Apr 1, 2020 (2 updates tracked since 2020).

About Dr. Colleen Ann Keegan D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. COLLEEN ANN KEEGAN D.O. (NPI 1497937106) is an individual dermatology provider in Naperville, Illinois, licensed in Illinois (036-076923) and active in the NPI registry since December 2007. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Central Dupage Hospital, and is a graduate of Chicago College Of Osteopathy (1986).

NPPES Registry Identity

NPI1497937106
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameDR. COLLEEN ANN KEEGANCredential: D.O.
Location Address636 RAYMOND DR STE 200Naperville, IL 60563-9791
Mailing Address636 Raymond Dr Ste 200Naperville, IL 60563-9791 · (630) 315-6500 · Fax (630) 315-6519
Fax(630) 315-6519
Sole ProprietorNo
Medical School CMSChicago College Of OsteopathyGraduated 1986
Enumeration DateDecember 4, 2007
Last NPPES UpdateJune 25, 20252 updates tracked since enumeration
NPPES CertifiedJune 25, 2025
NPI 1497937106 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License Licensed in IL · 036-076923
Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

636 RAYMOND DR STE 200, Naperville, IL 60563

Other Identifiers 1

Other036076923IL · Medicaid

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Colleen Ann Keegan D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6002897436
PECOS Enrollment IDI20041213000783
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Destruction of precancer skin growth, 2-14 growths 17003
This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.
291 services87 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
280 services211 patients
Destruction of precancer skin growth, 1 growth 17000
"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.
155 services120 patients
Destruction of skin growth, 1-14 growths 17110
"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.
142 services119 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
133 services110 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
35 services35 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60563 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$74.38 typical visit price
range $19.15 – $147.12
Typical copayment $18.59 (range $4.78 – $36.78)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Quality82.59
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Dermatology
636 RAYMOND DR STE 200
NAPERVILLE, IL 60563
Internal Medicine
636 RAYMOND DR STE 200
NAPERVILLE, IL 60563
Family Medicine
636 RAYMOND DR STE 200
NAPERVILLE, IL 60563
Dermatology
636 RAYMOND DR STE 200
NAPERVILLE, IL 60563

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497937106, enumerated as an "individual" on December 04, 2007.

The provider is located at 636 RAYMOND DR STE 200 NAPERVILLE, IL 60563 and the phone number is (630) 315-6500.

Dermatology with taxonomy code 207N00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.

Colleen Keegan is affiliated with: NORTHWESTERN MEDICINE CENTRAL DUPAGE HOSPITAL.