Belinda Oyinkan Marquis, M.D.
Epileptologists · Neurology (CMS) · Hawthorne, NY
At a glance
40 Saw Mill Riv Rd Ste Fb1, Hawthorne, NY 10532-1528
NPPES record updated Sep 22, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
40 Saw Mill Riv Rd Ste Fb1Hawthorne, NY 10532-1528
Additional reported practice locations
212 Crystal Run RdMiddletown, NY 109414009
Phone: 9147683970 100 Woods Rd
Valhalla, NY 105951530
Phone: 9144907000
Education & affiliations
- Medical / professional school
- State University Of New York At Stony Brook, School Of Medicine
- Graduation year
- 2007
- CMS specialties
- Epileptologists · Neurology
Practice groups
Reported hospital affiliations
- Nyack Hospital Nyack, NY
- White Plains Hospital Center White Plains, NY
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Epileptologists · Neurology (CMS)
- Taxonomy code
- 2084N0402X
- Enumeration date
- Jun 21, 2007
- Record updated
- Sep 22, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
2084E0001X
License reported: 260398 NY
2084N0402X · Primary
License reported: 260398 NY
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
40 Saw Mill Riv Rd Ste Fb1Hawthorne, NY 10532-1528
- Phone
- (914) 768-3970
Mailing address
400 COLUMBUS AVE STE 200EVALHALLA, NY 105951392
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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