Vladimir V. Koltchine, MD

Medicare activity in 2024

Official CMS public-use data for Vladimir V. Koltchine, 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. Anesthesia for other procedure on large bowel using an endoscope (00811)44 services
2. Anesthesia for procedure on small and large bowel using an endoscope (00813)31 services
3. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)27 services
4. Anesthesia for exam of colon using an endoscope (00812)15 services
5. Injection of anesthetic agent and/or steroid into other nerve or branch (64450)14 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 cholesterol75%
• High blood pressure70%
• Arthritis42%
• Ischemic heart disease36%
• Diabetes27%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)26%

Hospitals where Vladimir V. Koltchine works

Medicare's Facility Affiliation Data lists Vladimir V. Koltchine 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
• Norwalk HospitalNorwalk, CT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 070034

Practice locations

Addresses where Vladimir V. Koltchine is enrolled with Medicare (CMS data updated October 2, 2026).

• 24 Stevens StNorwalk, CT 06850 (203) 852‑2000
• 40 Cross StNorwalk, CT 06851 (203) 546‑3377

Group practices

Medicare enrollment lists Vladimir V. Koltchine as a member of this group (CMS data updated October 2, 2026).

• Nuvance Health Medical Practice Ct Inc747 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in Connecticut →

Other anesthesiologists in Norwalk

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

• Jennifer Wagner, MD
• Raymon Dhall, MD
• Dmitry Mironov, MD
• Susie S. Lee, MD
• Garrett Nguyen, MD
• Michael A. Smith, MD
• Lucia Vigna, MD
• Richard A. Hughes, MD

All anesthesiologists in Norwalk →

Other clinicians in Nuvance Health Medical Practice Ct Inc

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

• Lisa Phuong, DO
• Anamaria C. Mihu, MD
• Caitlin Ferguson, PA
• Kirsten Almagro, PA
• Armenia Mordan Vasquez, MD
• Karen Halasan, 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