Wenzhen Xiao, MD

Medicare activity in 2024

Official CMS public-use data for Wenzhen Xiao, 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.

Most frequent services

1. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)89 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)31 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 blood pressure75%
• High cholesterol75%
• Arthritis54%
• Ischemic heart disease48%
• Chronic kidney disease45%
• Diabetes40%

Hospitals where Wenzhen Xiao works

Medicare's Facility Affiliation Data lists Wenzhen Xiao 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.

• Danbury HospitalDanbury, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070033
• Griffin HospitalDerby, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070031

Practice locations

Addresses where Wenzhen Xiao is enrolled with Medicare (CMS data updated October 2, 2026).

• 21 Elm StNew Milford, CT 06776 (860) 210‑5390
• 24 Hospital AveDanbury, CT 06810 (203) 739‑7118

Group practices

Medicare enrollment lists Wenzhen Xiao as a member of this group (CMS data updated October 2, 2026).

• Nuvance Health Medical Practice Ct Inc747 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in New Milford

Clinicians with the same Medicare primary specialty in New Milford, CT — not a recommendation.

• Matthew T. Barbery, MD
• Marc Kevin Yee, MD
• Dinusha W. Dharmaratna, MD
• Sasraku Amanor-Boadu, MD
• Ishwar Giri
• John A. Turchiano, MD
• Thien Tien, MD
• Satesh Kumar

All internal medicine doctors in New Milford →

Other clinicians in Nuvance Health Medical Practice Ct Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• John C. Dieck, MD
• Sakshi Sethi, MD
• Amanda Silverio, MD
• Ajay Singh, MD
• Jeanette R. Schultz
• Limore Maron, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians