Quick answers
- Does Joseph Y. Tang accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph Y. Tang 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 Joseph Y. Tang see?
- In 2024, CMS data shows 1,973 Original Medicare patients and 2,925 services for Joseph Y. Tang. This counts Original Medicare only and measures volume, not quality.
- What is Joseph Y. Tang's NPI number?
- 1083806350. 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 Joseph Y. Tang, 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 | 1,973 |
|---|---|
| Services billed to Medicare | 2,925 |
| Different services or procedures | 104 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- X-ray of hip, 2-3 views (73502)211 services
- X-ray of shoulder, minimum of 2 views (73030)202 services
- X-ray of lower and sacral spine, 2-3 views (72100)161 services
- X-ray of knee, 1-2 views (73560)140 services
- X-ray of pelvis, 1-2 views (72170)138 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).
- Arthritis72%
- High blood pressure66%
- High cholesterol64%
- Anxiety29%
- Depression28%
- Osteoporosis28%
Hospitals where Joseph Y. Tang works
Medicare's Facility Affiliation Data lists Joseph Y. Tang 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.
- Aspirus Divine Savior HospitalPortage, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520041
- Columbus Community HospitalColumbus, WI · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 521338
- Mercy Health System CorpJanesville, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520066
- UnityPoint Health - MeriterMadison, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520089
- 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 Joseph Y. Tang is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1 S Park StMadison, WI 53715 (608) 287‑2000
- 3051 Cahill MainFitchburg, WI 53711 (608) 661‑7200
- 402 W Lake StFriendship, WI 53934 (608) 339‑3331
- 4602 Eastpark BlvdMadison, WI 53718 (608) 440‑6400
- 600 Highland AveMadison, WI 53792 (608) 263‑6400
Group practices
Medicare enrollment lists Joseph Y. Tang as a member of these groups (CMS data updated October 2, 2026).
- University of Wisconsin Medical Foundation Inc2,553 clinicians in the group
- Group Health Cooperative of South Central Wisconsin236 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 University of Wisconsin Medical Foundation Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083806350 |
| 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