Michael L Allan, MD
Gastroenterology · Internal Medicine (CMS) · Madison, WI
At a glance
700 S Park St, Madison, WI 53715-1830
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Oct 27, 2020. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
700 S Park StMadison, WI 53715-1830
Additional reported practice locations
700 S Park StDean St. Mary's Outpatient Center
Madison, WI 537151830
Phone: 6082602900
Fax: 6082602977
Education & affiliations
- Medical / professional school
- University Of Wisconsin School Of Medicine
- Graduation year
- 1997
- CMS specialties
- Gastroenterology · Internal Medicine
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Southwest Health Center Platteville, WI
- Ssm Health St Clare Hospital - Baraboo Baraboo, WI
- Ssm Health St Mary's Hospital - Janesville Janesville, WI
- Ssm Health St Mary's Hospital - Madison Madison, WI
- Upland Hills Health Dodgeville, WI
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 206 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 256 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Gastroenterology · Internal Medicine (CMS)
- Taxonomy code
- 207RG0100X
- Enumeration date
- Jun 5, 2006
- Record updated
- Oct 27, 2020
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207RG0100X · Primary
License reported: 45234-020 WI
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
700 S Park StMadison, WI 53715-1830
- Phone
- (608) 260-2900
- Fax
- (608) 260-2977
Mailing address
700 S PARK STMADISON, WI 537151830
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue