Rebecca Masutani, MD

Medicare activity in 2024

Official CMS public-use data for Rebecca Masutani, 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 moderate level of decision making, if using time, 30 minutes or more (99214)189 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)175 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)167 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)126 services
5. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)68 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%
• Arthritis63%
• Depression40%
• Ischemic heart disease39%
• Osteoporosis36%

Hospitals where Rebecca Masutani works

Medicare's Facility Affiliation Data lists Rebecca Masutani 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 Rebecca Masutani is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Gustave L Levy PlNew York, NY 10029 (212) 658‑8552

Group practices

Medicare enrollment lists Rebecca Masutani 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

• Geriatric Medicineprimary

Find other Geriatric Medicine doctors in New York →

Other geriatricians in New York

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

• Yuji Yamada
• Katherine Mark, MD
• Audrey K. Chun, MD
• Dustin E. Suanino, MD
• Ahmad Javed, MD
• William W. Hung, MD
• Martine Sanon, MD
• Jeffrey N. Nichols, MD

All geriatricians 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.

• Michael C. Plietz, MD
• Tara Wetzler
• Eric Loesch
• Amy Tiersten, MD
• Afnan S. Haq, MD
• Ernest Garnier, 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