Dahlia M. Hassan, MD

Medicare activity in 2024

Official CMS public-use data for Dahlia M. Hassan, 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)320 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)226 services
3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)61 services
4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)44 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)35 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 pressure74%
• Ischemic heart disease38%
• Diabetes36%
• Osteoporosis28%

Hospitals where Dahlia M. Hassan works

Medicare's Facility Affiliation Data lists Dahlia M. Hassan 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 Medical CenterBronx, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330059

Practice locations

Addresses where Dahlia M. Hassan is enrolled with Medicare (CMS data updated October 2, 2026).

• 111 E 210th StBronx, NY 10467 (866) 633‑8255

Group practices

Medicare enrollment lists Dahlia M. Hassan as a member of this group (CMS data updated October 2, 2026).

• Montefiore Medical Center2,820 clinicians in the group

Specialties

• Rheumatologyprimary
• Internal Medicinealso

Find other Rheumatology doctors in New York →

Other rheumatologists in Bronx

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

• Deborah Shapiro, MD
• Shudan Wang, MD
• John A. Hardin, MD
• Beverly K. Johnson, MD
• Clement E. Tagoe, MD
• Shriyanka Jain, MD
• Anand A. Kumthekar, MD
• Sharika G. Menon, MD

All rheumatologists in Bronx →

Other clinicians in Montefiore Medical Center

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

• Jennifer Ognibene, MD
• Richard B. Neches, MD
• Paul L. Eugenio, MD
• Richard L. Popowitz, MD
• Candace Y. Hatten-Powell, MD
• Wayne Lee, 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