Quick answers
- Does Shilagh A. Mirgain accept Medicare assignment?
- Yes. Medicare's clinician data says Shilagh A. Mirgain accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Shilagh A. Mirgain see?
- In 2024, CMS data shows 59 Original Medicare patients and 521 services for Shilagh A. Mirgain. This counts Original Medicare only and measures volume, not quality.
- What is Shilagh A. Mirgain's NPI number?
- 1477517027. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Shilagh A. Mirgain, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 59 |
|---|---|
| Services billed to Medicare | 521 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 65 |
Most frequent services
- Treatment of behavior impacting health in group setting, each additional 30 minutes (96165)316 services
- Treatment of behavior impacting health in group setting, initial 30 minutes (96164)75 services
- Assessment of health behavior (96156)19 services
- Evaluation of psychological test, first hour (96130)18 services
- Evaluation of psychological test, each additional hour (96131)17 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- Arthritis64%
- High blood pressure63%
- High cholesterol59%
- Anxiety58%
- Depression47%
- Diabetes22%
Hospitals where Shilagh A. Mirgain works
Medicare's Facility Affiliation Data lists Shilagh A. Mirgain at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- University of WI Hospitals & Clinics AuthorityMadison, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520098
Practice locations
Addresses where Shilagh A. Mirgain is enrolled with Medicare (CMS data updated October 2, 2026).
- 600 Highland AveMadison, WI 53792 (608) 263‑6400
Group practices
Medicare enrollment lists Shilagh A. Mirgain as a member of this group (CMS data updated October 2, 2026).
- University of Wisconsin System Non Payroll109 clinicians in the group
Specialties
- Clinical Psychologistprimary
Other clinical psychologists in Madison
Clinicians with the same Medicare primary specialty in Madison, WI — not a recommendation.
Other clinicians in University of Wisconsin System Non Payroll
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CP |
|---|---|
| Graduation year | 1997 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1477517027 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians