Uyen To, MD

Medicare activity in 2024

Official CMS public-use data for Uyen To, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)67 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)50 services
3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)19 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)17 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 cholesterol62%
• Diabetes59%
• Chronic kidney disease46%
• Arthritis45%
• Anxiety38%

Hospitals where Uyen To works

Medicare's Facility Affiliation Data lists Uyen To 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.

• Hartford HospitalHartford, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070025

Practice locations

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

• 85 Seymour StHartford, CT 06106 (860) 545‑5107
• 85 Seymour St, Suite 1000Hartford, CT 06106 (860) 246‑2571

Group practices

Medicare enrollment lists Uyen To as a member of these groups (CMS data updated October 2, 2026).

• Hartford Hospital1,044 clinicians in the group
• Connecticut Gi PLLC248 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Hartford

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

• Luis F. Diez-Morales, MD
• Mahmood H. Yekta, MD
• Lindsay Shi, DO
• Shivani Gupta
• Ina Lico, DO
• Tiffany M. Smith, MD
• Syed S. Ali, MD
• Edward Shalom, MD

All internal medicine doctors in Hartford →

Other clinicians in Hartford Hospital

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

• Christina M. Gilliam
• Shaheena Shan, MD
• Christopher P. Shimwell
• Dillon Paulo, MD
• Jensi S. George, MD
• Xiaoyi Ye, 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