Larisa Kleymenova, DO

Medicare activity in 2024

Official CMS public-use data for Larisa Kleymenova, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)455 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)64 services
3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)53 services
4. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)51 services
5. Hospital discharge day management, 30 minutes or less (99238)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 blood pressure75%
• High cholesterol75%
• Diabetes56%
• Ischemic heart disease56%
• Arthritis51%
• Alzheimer's disease or dementia46%

Hospitals where Larisa Kleymenova works

Medicare's Facility Affiliation Data lists Larisa Kleymenova 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.

• Nassau University Medical CenterEast Meadow, NY · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 330027

Practice locations

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

• 2201 Hempstead TpkeEast Meadow, NY 11554 (516) 486‑6862

Group practices

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

• Nassau Health Care Corporation178 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in New York →

Other family doctors in East Meadow

Clinicians with the same Medicare primary specialty in East Meadow, NY — not a recommendation.

• Sebeen Razzaq Ahmed, DO
• Tanesha Lawrence, MD
• John A. Bianchi, DO
• Dennis Dowling, MD
• Courtney E. McCall, DO
• Steven P. Linzer, MD
• Tamara N. Richardson, DO

All family doctors in East Meadow →

Other clinicians in Nassau Health Care Corporation

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

• Ryan J. Senese
• Tania E. Revolus, MD
• Robert J. Stabile, DPM
• Helaine Karp-Harman, MD
• Charles J. Ruotolo, MD
• Elsie M. Santana-Fox, 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