Courtney J. Ensslin, MD

Medicare activity in 2024

Official CMS public-use data for Courtney J. Ensslin, 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. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks (17311)90 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)85 services
3. Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm (12032)61 services
4. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks (17312)59 services
5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)45 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 cholesterol68%
• High blood pressure62%
• Arthritis38%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)24%
• Ischemic heart disease22%
• Diabetes21%

Hospitals where Courtney J. Ensslin works

Medicare's Facility Affiliation Data lists Courtney J. Ensslin at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

• Mount Sinai Beth IsraelNew York, NY · Acute Care Hospital · closed, according to its website · CCN 330169

Practice locations

Addresses where Courtney J. Ensslin is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Gustave Levy PlaceNew York, NY 10029 (212) 241‑8234

Group practices

Medicare enrollment lists Courtney J. Ensslin 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

• Dermatologyprimary

Find other Dermatology doctors in New York →

Other dermatologists in New York

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

• Daniel Gutierrez, MD
• Lisa Rothman, MD
• Richard D. Granstein, MD
• Pinkas E. Lebovits, MD
• David Polsky
• Gregory Phillips, MD
• Prince Adotama, MD
• Layal Antoury, MD

All dermatologists 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.

• Justin M. George, MD
• Emma H. Kaplan, MD
• Claire E. Doucette
• Sabrina Segura
• Matthew I. Tomey, MD
• Sophie M. Fortier, 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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
3. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
5. Medicare Care Compare — official Medicare tool to look up clinicians