Konstantin Zakashansky

Medicare activity in 2024

Official CMS public-use data for Konstantin Zakashansky, 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)216 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)112 services
3. Biopsy of lining of uterus and/or removal of polyp using an endoscope (58558)38 services
4. Removal of uterus, tubes, and/or ovaries through abdomen using an endoscope, 250.0 g or less (58571)26 services
5. Repair of prolapsing vaginal vault through vagina (57283)21 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 pressure62%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)48%
• Arthritis47%
• Diabetes35%
• Osteoporosis27%

Hospitals where Konstantin Zakashansky works

Medicare's Facility Affiliation Data lists Konstantin Zakashansky 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.

• Mount Sinai HospitalNew York, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330024
• Mount Sinai WestNew York, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330046

Practice locations

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

• 1000 10th AveNew York, NY 10019 (212) 523‑4000
• 425 W 59th StNew York, NY 10019 (212) 523‑8670

Group practices

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

• Icahn School of Medicine at Mount Sinai2,843 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary
• Gynecological Oncologyalso

Find other Obstetrics/Gynecology doctors in New York →

Other OB-GYNs in New York

Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.

• Peter S. Bernstein, MD
• Samantha Lowe, DO
• Samantha B. Feder, MD
• Suzanne J. Pastore, MD
• Gladys M. Lee Hwang, MD
• Ximena Matamala, MD
• Jhansi Reddy, MD
• Meredith D. Shur, MD

All OB-GYNs in New York →

Other clinicians in Icahn School of Medicine at Mount Sinai

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

• Peter S. Bernstein, MD
• Ming Yu, MD
• Olusegun A. Apoeso, MD
• Vinh Tung Nguyen, MD
• Meenakshi M. Rana, MD
• Ryan C. Ungaro, 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