Rehan Ahmad, MD

Medicare activity in 2024

Official CMS public-use data for Rehan Ahmad, 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)1,870 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)1,113 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)699 services
4. Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)661 services
5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)286 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%
• Diabetes70%
• Ischemic heart disease52%
• Arthritis44%
• Chronic kidney disease36%

Hospitals where Rehan Ahmad works

Medicare's Facility Affiliation Data lists Rehan Ahmad 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.

• Montefiore St Luke's CornwallNewburgh, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330264
• Sharon HospitalSharon, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070004
• Vassar Brothers Medical CenterPoughkeepsie, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330023

Practice locations

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

• 5159 Route 9w, Suite BNewburgh, NY 12550
• 5159b Route 9wNewburgh, NY 12550 (845) 561‑5972

Specialties

• Endocrinologyprimary
• Internal Medicinealso

Find other Endocrinology doctors in New York →

Other endocrinologists in New York

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

• Brooke N. Learned, DO
• Christos L. Paras, DO
• Mary Ann Banerji, MD
• Alamgir Sattar, MD
• Sean Ho Yoon, MD
• Richard W. Pinsker, MD
• Arnold Saperstein, MD
• Tina Constantin, MD

All endocrinologists in New York →

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