Hanna N. Algattas, MD

Medicare activity in 2024

Official CMS public-use data for Hanna N. Algattas, 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 low level od decision making, if using time, 20 minutes or more (99213)17 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 cholesterol71%
• Arthritis63%
• Stroke or mini-stroke46%
• Chronic kidney disease37%
• Diabetes34%

Hospitals where Hanna N. Algattas works

Medicare's Facility Affiliation Data lists Hanna N. Algattas 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.

• Erie County Medical CenterBuffalo, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330219
• Kaleida HealthBuffalo, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330005

Practice locations

Addresses where Hanna N. Algattas is enrolled with Medicare (CMS data updated October 2, 2026).

• 100 High StBuffalo, NY 14203 (716) 859‑3460
• 40 George Karl Blvd, Suite 200Amherst, NY 14221 (716) 218‑1000
• 40 George Karl Blvd, Suite 200Williamsville, NY 14221
• 462 Grider StBuffalo, NY 14215 (716) 898‑3000

Group practices

Medicare enrollment lists Hanna N. Algattas as a member of these groups (CMS data updated October 2, 2026).

• Erie County Medical Center Corporation319 clinicians in the group
• University at Buffalo Neurosurgery Inc71 clinicians in the group

Specialties

• Neurosurgeryprimary

Find other Neurosurgery doctors in New York →

Other neurosurgeons in Buffalo

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

• John Pollina Jr., MD
• Adnan H. Siddiqui, MD
• Alexander Becker, MD
• Renee M. Reynolds, MD
• Kevin Gibbons, MD
• Elad I. Levy, MD
• Lindsay J. Lipinski, MD
• Assaf Berger

All neurosurgeons in Buffalo →

Other clinicians in Erie County Medical Center Corporation

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

• Amy L. Perno, PA
• Devinderpal S. Randhawa, MD
• Howard E. Sperry, MD
• Balwant S. Nagra, MD
• Nicole L. Ksiazek, PA
• Samad N. Hassan, 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