Colleen Keegan, D.O.
NPI 1497937106 · Dermatology Physician · Naperville, IL
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen Keegan, D.O. is a Dermatology Physician provider in Naperville, IL (NPI 1497937106).
Provider details
- NPI number
- 1497937106
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 036-076923 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,102 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 291 | $7 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 280 | $135 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 155 | $56 |
| Destruction of Skin Growth, 1-14 Growths17110 | 142 | $115 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 133 | $96 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 149 | 65 |
| Triamcinolone Acetonide | 98 | 80 |
| Clobetasol Propionate | 56 | 43 |
| Metronidazole | 53 | 30 |
| Spironolactone | 43 | — |
| Doxycycline Hyclate | 43 | 12 |
| Hydrocortisone | 39 | 22 |
| Adalimumab |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-12-04
- Last updated
- 2025-06-25
- Certified
- 2025-06-25
Frequently asked questions
- What is Colleen Keegan's NPI number?
- Colleen Keegan's National Provider Identifier (NPI) is 1497937106, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Keegan's specialty?
- Colleen Keegan is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Colleen Keegan located?
- Colleen Keegan's practice location on file with NPPES is 636 Raymond Dr Ste 200, Naperville, IL 60563-9791.
- What is Colleen Keegan's phone number?
- The practice phone number listed in the NPPES registry for Colleen Keegan is (630) 315-6500.
- Does Colleen Keegan accept Medicare?
- Colleen Keegan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen Keegan's NPI active?
- Yes — Colleen Keegan's NPI (1497937106) is active in the NPPES registry as of the last update on 2025-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.