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Cardiovascular Disease (Cardiology)

Lynn Zaremski, MD

Works at hospitals in New York, NY · New York

Summary

Dr. Lynn Zaremski, MD is a cardiologist at 200 W 57th St, New York, NY 10019. Phone: (212) 663-6604. Accepts Medicare assignment. In 2024, Lynn Zaremski had 146 Original Medicare patients and 585 services. NPI 1083001515. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Cardiologist (Medicare lists Cardiovascular Disease (Cardiology))
  • Address: 200 W 57th St, New York, NY 10019 · Directions
  • Phone: (212) 663‑6604
  • Medicare: Accepts Medicare assignment
  • Hospital: Mount Sinai West
  • Group practice: Icahn School of Medicine at Mount Sinai
  • Medical school: graduated 2015 (11 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Lynn Zaremski, 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 Lynn Zaremski accept Medicare assignment?
Yes. Medicare's clinician data says Lynn Zaremski 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 Lynn Zaremski see?
In 2024, CMS data shows 146 Original Medicare patients and 585 services for Lynn Zaremski. This counts Original Medicare only and measures volume, not quality.
What is Lynn Zaremski's NPI number?
1083001515. 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 Lynn Zaremski, 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 patients146
Services billed to Medicare585
Different services or procedures18
Participating Medicare providerYes
Average age of these patients75

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)266 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)83 services
  3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)74 services
  4. Insertion of needle into vein for collection of blood sample (36415)58 services
  5. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)50 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 pressure64%
  • Arthritis45%
  • Ischemic heart disease38%
  • Anxiety22%
  • Depression20%

Hospitals where Lynn Zaremski works

Medicare's Facility Affiliation Data lists Lynn Zaremski 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 WestNew York, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330046

Practice locations

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

Group practices

Medicare enrollment lists Lynn Zaremski 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 Cardiovascular Disease (Cardiology) doctors in New York →

Other cardiologists in New York

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

All cardiologists 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

CredentialMD
Graduation year2015 (11 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1083001515
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. 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