Michael Larson, MD
NPI 1174054670 · Diagnostic Radiology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Larson, MD is a Diagnostic Radiology Physician provider in Madison, WI (NPI 1174054670).
Provider details
- NPI number
- 1174054670
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 71888-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,175 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 305 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 153 | $37 |
| Nuclear Medicine Study From Skull Base to Mid-Thigh With Ct Scan78815 | 108 | $105 |
| Mri Scan of Brain Before and After Contrast70553 | 104 | $100 |
| Mri Scan of Brain Without Contrast70551 | 100 | $65 |
| Complete Ultrasound Scan Behind Abdominal Cavity76770 | 83 | $33 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$119 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
Registry dates
- Enumerated
- 2017-03-26
- Last updated
- 2023-08-02
- Certified
- 2023-07-31
Frequently asked questions
- What is Michael Larson's NPI number?
- Michael Larson's National Provider Identifier (NPI) is 1174054670, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Larson's specialty?
- Michael Larson is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Larson located?
- Michael Larson's practice location on file with NPPES is Uw Hospitals & Clinics 600 Highland Ave, Madison, WI 53792.
- What is Michael Larson's phone number?
- The practice phone number listed in the NPPES registry for Michael Larson is (262) 893-0613.
- Does Michael Larson accept Medicare?
- Michael Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Larson's NPI active?
- Yes — Michael Larson's NPI (1174054670) is active in the NPPES registry as of the last update on 2023-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.