Quick answers
- Does Jacob T. McCallum accept Medicare assignment?
- Yes. Medicare's clinician data says Jacob T. McCallum 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 Jacob T. McCallum see?
- In 2024, CMS data shows 1,524 Original Medicare patients and 4,828 services for Jacob T. McCallum. This counts Original Medicare only and measures volume, not quality.
- What is Jacob T. McCallum's NPI number?
- 1194210492. 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 Jacob T. McCallum, 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 | 1,524 |
|---|---|
| Services billed to Medicare | 4,828 |
| Different services or procedures | 149 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)2,635 services
- X-ray of chest, 1 view (71045)173 services
- Screening 3d breast mammography (77063)157 services
- Screening mammography (77067)157 services
- X-ray of chest, 2 views (71046)109 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).
- High cholesterol69%
- High blood pressure68%
- Arthritis47%
- Anxiety27%
- Diabetes26%
- Ischemic heart disease24%
Hospitals where Jacob T. McCallum works
Medicare's Facility Affiliation Data lists Jacob T. McCallum 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.
- Reedsburg Area Medical CenterReedsburg, WI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 521351
- Sauk Prairie HospitalPrairie Du Sac, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520095
- SSM Health St Clare Hospital - BarabooBaraboo, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520057
- SSM Health St Mary's Hospital - MadisonMadison, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520083
- The Monroe ClinicMonroe, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520028
Practice locations
Addresses where Jacob T. McCallum is enrolled with Medicare (CMS data updated October 2, 2026).
- 1211 Fish Hatchery RdMadison, WI 53715 (608) 252‑8000
- 8430 Market St, Apt 118Middleton, WI 53562 (614) 340‑7740
Group practices
Medicare enrollment lists Jacob T. McCallum as a member of these groups (CMS data updated October 2, 2026).
- Dean Health Systems Inc1,159 clinicians in the group
- Madison Radiologists S C57 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Madison
Clinicians with the same Medicare primary specialty in Madison, WI — not a recommendation.
Other clinicians in Dean Health Systems Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1194210492 |
| 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