Tatyana Karachun, MD

Medicare activity in 2024

Official CMS public-use data for Tatyana Karachun, 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)329 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)88 services
3. Hospital discharge day management, 30 minutes or less (99238)82 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)39 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)27 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%
• Diabetes75%
• Arthritis71%
• Ischemic heart disease67%
• Alzheimer's disease or dementia61%

Hospitals where Tatyana Karachun works

Medicare's Facility Affiliation Data lists Tatyana Karachun 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.

• South Brooklyn HealthBrooklyn, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330196

Practice locations

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

• 2601 Ocean PkwyBrooklyn, NY 11235 (718) 616‑5356

Group practices

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

• Physician Affiliate Group of New York PC1,225 clinicians in the group

Specialties

• Hospice/Palliative Careprimary
• Internal Medicinealso

Find other Hospice/Palliative Care doctors in New York →

Other palliative care doctors in Brooklyn

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

• Joanna B. Sheinfeld, MD
• Lauren A. Parker, MD
• Tanveer P. Mir, MD
• Anna Goehring, MD
• Marina Ivanyuk, MD
• Sahaj D. Patel, MD
• Suneetha K. Chowdary, MD
• Lauren A. Shaiova, MD

All palliative care doctors in Brooklyn →

Other clinicians in Physician Affiliate Group of New York PC

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

• Anthony Knott, MD
• Cormac F. Smith, MD
• Elie Hatem, MD
• Elvira Neculiseanu, MD
• Tahsin U. Rahman, DO
• Clarisa V. Atencio, 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