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Neurosurgeons who accept Medicare in Williamsville, NY
CMS lists 14 clinicians in this specialty with a practice address in Williamsville. Accept Medicare assignment (the Medicare-approved amount as full payment): 11. Offer telehealth: 0.
Typical amounts Medicare approves in ZIP 14221 (2024 Medicare rates, the latest CMS has published): a new-patient visit $126, of which you pay about $32; a follow-up visit $69, of which you pay about $17 — the 20% coinsurance after the yearly Part B deductible. Clinicians who don't accept assignment can charge up to 15% more; with a Medicare Advantage plan, your plan's copay applies instead.
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Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
Hanna N. Algattas, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100Graduated 2016FemaleDrug and device company payments (2025): $619Gregory J. Castiglia, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100Graduated 1992 · Columbia University College of Physicians and SurgeonsMaleDrug and device company payments (2025): $88John G. Fahrbach IV, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100Graduated 2007 · State University of New York at Buffalo School of MedicineMaleDrug and device company payments (2025): $1,305Pui Man Rosalind Lai, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100Graduated 2015 · Harvard Medical SchoolFemaleDrug and device company payments (2025): $3,636Douglas B. Moreland, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100Graduated 1984 · State University of New York at Buffalo School of MedicineMaleDrug and device company payments (2025): $4,117John Pollina Jr., MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100Graduated 1994 · State University of New York at Buffalo School of MedicineMaleDrug and device company payments (2025): $150,786Kenneth V. Snyder, MD
✓ Accepts Medicare assignmentMIPS score (2024): 95.8/100Graduated 2004 · State University of New York at Buffalo School of MedicineMaleDrug and device company payments (2025): $22,691Ryan P. Denhaese, MD
✓ Accepts Medicare assignmentGraduated 2001 · State University of New York at Buffalo School of MedicineMaleDrug and device company payments (2025): $238,900Vassilios G. Dimopoulos, MD
✓ Accepts Medicare assignmentGraduated 2013 · University of Rochester School of Medicine and DentistryMaleDrug and device company payments (2025): $3,027Michael K. Landi, MD
✓ Accepts Medicare assignmentGraduated 1994 · State University of New York at Buffalo School of MedicineMaleDrug and device company payments (2025): $418Michael Stuart, MD
✓ Accepts Medicare assignmentGraduated 2013MaleMuhammad B. Khan, MD
May accept assignmentGraduated 2014MaleDrug and device company payments (2025): $53Andrew D. Legarreta, MD
May accept assignmentGraduated 2019 · Vanderbilt University School of MedicineMaleOther offices in Williamsville: 1Drug and device company payments (2025): $2,331Jaims Lim, MD
May accept assignmentGraduated 2018 · Vanderbilt University School of MedicineMaleDrug and device company payments (2025): $990
Before you book
This list comes from Medicare's enrollment records, not from reviews. Call the office to confirm the clinician is taking new Medicare patients. With Original Medicare, a clinician who accepts assignment can only charge you the Medicare deductible and coinsurance; one who doesn't may charge up to 15% more than the Medicare-approved amount. If you have a Medicare Advantage plan, check that the clinician is in the plan's network.
The MIPS final score (0–100) comes from Medicare's Merit-based Incentive Payment System for 2024. It combines quality measures, cost, improvement activities and use of certified health records, and it sets a payment adjustment. Clinicians who report as a group share the group's score. It is not a patient rating, and many clinicians have no published score.
Payments from drug and medical device companies come from CMS Open Payments (2025 general payments: meals, travel, consulting and speaking fees, gifts and similar), summed for each clinician. Receiving payments is legal and common and does not mean a clinician did anything wrong.
Other specialists in Williamsville
- Primary care doctors159
- Nurse practitioners209
- Cardiologists37
- Dermatologists17
- Orthopedic surgeons21
- Neurologists27
- Gastroenterologists28
- Ophthalmologists24
- Optometrists22
- Podiatrists5
- Urologists6
- Pulmonologists20
- Nephrologists4
- Endocrinologists10
- Rheumatologists5
- ENT doctors7
- Oncologists10
- Psychiatrists7
- Psychologists19
- Therapists and counselors40
- Physical therapists46
- Occupational therapists13
- Speech therapists3
- Audiologists14
- Chiropractors41
- Gynecologists45
- General surgeons20
- Vascular surgeons6
- Pain management doctors4
- Physiatrists8
- Allergists6
- Dietitians11
Other care in Williamsville
Hospitals · Nursing homes · Dialysis centers
Nearby cities
Enrollment, addresses and scores are as reported to CMS and can change. This is not a list of in-network providers for any Medicare Advantage plan, and it is not medical advice. Source: CMS Provider Data Catalog — Doctors and Clinicians National Downloadable File, Clinician MIPS Performance 2024 and Facility Affiliation Data (released Oct 2, 2026).