Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Stephan Anthony Mayer, MD

Individual provider Neurocritical Care Physician · NPI 1538258538

Dr. Stephan Anthony Mayer, MD is a Neurology in Valhalla, New York. Graduated from Js Weill Medical College, Cornell University in 1988, 38 years ago. Practices with Westchester Medical Center Advanced Physician Services PC, a 880-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
38
Trained at
Js Weill Medical College, Cornell University
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Partly verified

Some contact details are missing from the federal record.

Westchester Medical Center Advanced Physician Services 100 Woods Rd
Valhalla, NY 10595
Phone: (914) 493-5098
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurocritical Care Physician (primary) Taxonomy 2084A2900X · Licence 182231 (NY)

Record details

NPI number1538258538
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 11, 2006
Last updated in NPPESOctober 30, 2020
Certification dateOctober 29, 2020
Mailing addressWestchester Medical Center Advanced Physician Services, 19 Bradhurst Avenue, Suite 3100n, Hawthorne, NY 10532

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEUROLOGY
Medical schoolJS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY
Graduated 1988 (38 years in practice)
Group practice Westchester Medical Center Advanced Physician Services Pc — 880 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount