Zarlasht Khan, MD

Medicare activity in 2024

Official CMS public-use data for Zarlasht Khan, 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)162 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)126 services
3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)49 services
4. Insertion of needle into vein for collection of blood sample (36415)46 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)18 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%
• Arthritis75%
• High blood pressure73%
• Ischemic heart disease39%
• Osteoporosis38%
• Anxiety37%

Hospitals where Zarlasht Khan works

Medicare's Facility Affiliation Data lists Zarlasht Khan 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.

• John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330185

Practice locations

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

• 9 Medical Dr, Suite APort Jefferson Station, NY 11776 (631) 743‑6840

Group practices

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

• Harbor View Medical Services PC58 clinicians in the group

Specialties

• Rheumatologyprimary
• Internal Medicinealso

Find other Rheumatology doctors in New York →

Other rheumatologists in New York

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

• Aitezaz Ahmed, MD
• George J. Mtanos, MD
• Gary Zagon, MD
• Lanny S. Schwartzfarb, MD
• Laura C. Llinas Lux, MD
• Angel Chen, DO
• Dorota L. Hausner-Sypek, MD
• Monica H. Schwartzman, MD

All rheumatologists in New York →

Other clinicians in Harbor View Medical Services PC

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

• Vanessa Valenti, PA
• Mohit Sharma, MD
• Luke M. Janson, MD
• Robert C. Giacobbe, MD
• Christine Nwaiser, MD
• Ella Rosenbloom, 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