Calvin Madsen, MD
NPI 1619662954 · Emergency Medicine Physician · Madison, WI
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Calvin Madsen, MD is a Emergency Medicine Physician provider in Madison, WI (NPI 1619662954).
Provider details
- NPI number
- 1619662954
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 100296-851 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-04-11
- Last updated
- 2023-06-22
- Certified
- 2023-06-22
Frequently asked questions
- What is Calvin Madsen's NPI number?
- Calvin Madsen's National Provider Identifier (NPI) is 1619662954, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Madsen's specialty?
- Calvin Madsen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Calvin Madsen located?
- Calvin Madsen's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-1465.
- What is Calvin Madsen's phone number?
- The practice phone number listed in the NPPES registry for Calvin Madsen is (608) 263-6400.
- Does Calvin Madsen accept Medicare?
- Calvin Madsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Calvin Madsen's NPI active?
- Yes — Calvin Madsen's NPI (1619662954) is active in the NPPES registry as of the last update on 2023-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.