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Dr. Stephen L. McDonald is a neurologist in Smithtown, New York, practicing with St Catherine of Siena Medical Center.
He graduated from University of Oklahoma College of Medicine in 2013, which means 13 years have passed since medical school.
The office is at 50 Route 25a, Smithtown, NY 11787; the phone number on record is (631) 862-3000. He also has listed practice locations at 4295 Hempstead Tpke, Bethpage, NY 11714 and 1000 Montauk Hwy, West Islip, NY 11795. The group behind the practice, St Catherine of Siena Medical Center, lists 98 clinicians with Medicare. He accepts Medicare assignment — useful to know if you are on traditional Medicare. He is listed as offering telehealth.
Practice details
- Specialty
- Neurologist
- Credentials
- MD
- Practice
- St Catherine of Siena Medical Center
- Address
- 50 Route 25a, Smithtown, NY 11787
- Phone
- (631) 862-3000
- Other locations
- 4295 Hempstead Tpke, Bethpage, NY 11714; 1000 Montauk Hwy, West Islip, NY 11795
- Medical school
- University of Oklahoma College of Medicine (2013)
- Medicare assignment
- Accepts
- Telehealth
- Available
- NPI number
- 1093159444
Have you been a patient of Dr. McDonald? A short, fair review — what went well, what didn't — helps the next person choosing a neurologist in Smithtown.
Medicare, Medicaid and hospitals
- New York Medicaid
- Enrolled fee-for-service provider since 2024. Medicaid managed-care plans keep their own networks, so check with your plan.
- Hospital pages
- AdventHealth Orlando
Comparing neurologists? See 7 in Smithtown or 127 across Long Island.
Other neurologists in Smithtown
Dr. Paulo Gonzalez, DONeurologist · St Catherine of Siena Medical CenterNo reviews yetSmithtown, NY
Dr. Reuben Burshtein, DONeurologist · Chs Physician Partners PCNo reviews yetSmithtown, NY
Dr. Sara E. Hocker, MDNeurologist · St Catherine of Siena Medical CenterNo reviews yetSmithtown, NY
Dr. Bradley M. Klein, MDNeurologist · St Catherine of Siena Medical CenterNo reviews yetSmithtown, NY
Dr. Ellie Frazey, MDNeurologist · St Catherine of Siena Medical CenterNo reviews yetSmithtown, NY
Dr. Mark McDonald, MDNeurologist · St Catherine of Siena Medical CenterNo reviews yetSmithtown, NYWrite a review
Frequently Asked Questions
With St Catherine of Siena Medical Center, at 50 Route 25a, Smithtown, NY 11787.
Call the office at (631) 862-3000.
Yes — Dr. McDonald accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.
University of Oklahoma College of Medicine, graduating in 2013.
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