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In Manhattan, Dr. Barbara O'Sullivan works as an internal medicine physician at Memorial Urgent Care Group.

Medical school: Medical College of Pennsylvania, class of 1983.

To book an appointment, call (212) 639-7203. Dr. O'Sullivan's office is at 1275 York Ave, New York, NY 10065. Dr. O'Sullivan accepts Medicare assignment, which means she takes the Medicare-approved amount as full payment for covered services.

Quick facts

Specialty
Internal medicine physician
Credentials
MD
Practice
Memorial Urgent Care Group
Address
1275 York Ave, New York, NY 10065
Phone
(212) 639-7203
Medical school
Medical College of Pennsylvania (1983)
Medicare assignment
Accepts
NPI number
1942240494
NY license no.
166615

Reviews here come only from patients. If you've seen Dr. O'Sullivan, add yours.

Medicare, Medicaid and hospitals

Medicare patients (2024)
77 people with traditional Medicare, average age 76
Medicare quality score (MIPS 2024)
79 out of 100 — reported through the group practice
New York Medicaid
Enrolled fee-for-service provider since 2025. Medicaid managed-care plans keep their own networks, so check with your plan.

Medicare figures cover people with traditional (fee-for-service) Medicare only; services billed for fewer than 11 patients are not published.

Comparing internists? See 270 in Manhattan or 682 across New York City.

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Frequently Asked Questions

With Memorial Urgent Care Group, at 1275 York Ave, New York, NY 10065.

Call the office at (212) 639-7203.

Yes — Dr. O'Sullivan accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.

Medical College of Pennsylvania, graduating in 1983.

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