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Internal Medicine

Kelly Cassano, DO

Sees patients in New York, NY · New York

Summary

Dr. Kelly Cassano, DO is an internal medicine doctor at 1 Gustave L Levy Pl, New York, NY 10029. Phone: (212) 241-6500. Accepts Medicare assignment. In 2024, Kelly Cassano had 42 Original Medicare patients and 118 services. NPI 1588728158. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1 Gustave L Levy Pl, New York, NY 10029 · Directions
  • Phone: (212) 241‑6500
  • Medicare: Accepts Medicare assignment
  • Group practice: Icahn School of Medicine at Mount Sinai
  • Medical school: University Of New England, College Of Osteo Medicine · graduated 1993 (33 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Kelly Cassano, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kelly Cassano accept Medicare assignment?
Yes. Medicare's clinician data says Kelly Cassano accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Kelly Cassano see?
In 2024, CMS data shows 42 Original Medicare patients and 118 services for Kelly Cassano. This counts Original Medicare only and measures volume, not quality.
What is Kelly Cassano's NPI number?
1588728158. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Kelly Cassano, 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.

Original Medicare patients42
Services billed to Medicare118
Different services or procedures14
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Insertion of needle into vein for collection of blood sample (36415)38 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)24 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)22 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 cholesterol64%
  • High blood pressure52%
  • Arthritis33%
  • Osteoporosis26%

Practice locations

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

Group practices

Medicare enrollment lists Kelly Cassano 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

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in New York

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

All internal medicine doctors 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.

Clinician information

CredentialDO
Medical schoolUniversity Of New England, College Of Osteo Medicine
Graduation year1993 (33 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1588728158
CorrectionsReport an error or suggest an update →

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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians