Michael Colgan, MD
NPI 1447428321 · MOHS-Micrographic Surgery Physician · Eau Claire, WI
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Colgan, MD is a MOHS-Micrographic Surgery Physician provider in Eau Claire, WI (NPI 1447428321).
Provider details
- NPI number
- 1447428321
- Entity type
- Individual
- Primary specialty
- MOHS-Micrographic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 57581 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,605 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, 1-5 Tissue Blocks17311 | 466 | $289 |
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, Each Additional Stage, 1-5 Tissue Blocks17312 | 119 | $181 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 97 | $2 |
| Intermediate Repair of Wound of Scalp, Underarms, Trunk, Arms, Or Legs, 2.6-7.5 Cm12032 | 84 | $111 |
| Biopsy of Related Skin Growth, First Growth11102 | 74 | $26 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 57 | 56 |
| Doxycycline Monohydrate | 39 | 36 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 14 | 13 |
| Gentamicin Sulfate | 12 | 11 |
| Ketoconazole | 12 | — |
| Clobetasol Propionate | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$100 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 700 West Ave SLa Crosse, WI 54601-4783Phone: (608) 392-6719
- 700 West Ave SLa Crosse, WI 54601-4783Phone: (608) 392-6719
Registry dates
- Enumerated
- 2008-02-13
- Last updated
- 2020-10-06
- Certified
- 2020-10-06
Frequently asked questions
- What is Michael Colgan's NPI number?
- Michael Colgan's National Provider Identifier (NPI) is 1447428321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Colgan's specialty?
- Michael Colgan is listed in the NPPES registry with a primary specialty of MOHS-Micrographic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Colgan located?
- Michael Colgan's practice location on file with NPPES is 1221 Whipple St, Eau Claire, WI 54703.
- What is Michael Colgan's phone number?
- The practice phone number listed in the NPPES registry for Michael Colgan is (715) 838-5222.
- Does Michael Colgan accept Medicare?
- Michael Colgan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Colgan's NPI active?
- Yes — Michael Colgan's NPI (1447428321) is active in the NPPES registry as of the last update on 2020-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.