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Dr. Ryan A. O'Connor is a cardiologist in Buffalo, New York, practicing with Sisters of Charity Hospital of Buffalo New York.
About Dr. O'Connor's practice
- Specialty
- Cardiologist
- Credentials
- MD
- Practice
- Sisters of Charity Hospital of Buffalo New York
- Address
- 2157 Main St, Buffalo, NY 14214
- Phone
- (716) 862-1000
- Other locations
- 2950 Elmwood Ave, Kenmore, NY 14217; 3091 William St, Cheektowaga, NY 14227
- Hospital affiliations
- Kenmore Mercy Hospital, Mercy Hospital of Buffalo, Sisters of Charity Hospital, Kaleida Health
- Medicare assignment
- Accepts
- NPI number
- 1477119949
- NY license no.
- 314095
To book an appointment, call (716) 862-1000. Dr. O'Connor's office is at 2157 Main St, Buffalo, NY 14214. He also has listed practice locations at 2950 Elmwood Ave, Kenmore, NY 14217 and 3091 William St, Cheektowaga, NY 14227. For Medicare patients: Dr. O'Connor accepts assignment.
Dr. O'Connor is affiliated with Kenmore Mercy Hospital, Mercy Hospital of Buffalo, Sisters of Charity Hospital and Kaleida Health.
Reviews here come only from patients. If you've seen Dr. O'Connor, add yours.
Medicare, Medicaid and hospitals
- New York Medicaid
- Enrolled fee-for-service provider since 2025. Medicaid managed-care plans keep their own networks, so check with your plan.
- Hospital pages
- Kaleida Health · Kenmore Mercy Hospital · Mercy Hospital of Buffalo · Mount St. Mary's Hospital & Health Center · Sisters of Charity Hospital
Comparing cardiologists? See 48 in Buffalo or 80 across Greater Buffalo.
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Frequently Asked Questions
With Sisters of Charity Hospital of Buffalo New York, at 2157 Main St, Buffalo, NY 14214.
Call the office at (716) 862-1000.
Yes — Dr. O'Connor accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.
Kenmore Mercy Hospital, Mercy Hospital of Buffalo, Sisters of Charity Hospital and Kaleida Health.
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