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

Dr. Sarah Mailander Dyer, PHD

Individual provider Clinical Neuropsychologist · NPI 1043877475

Dr. Sarah Mailander Dyer, PHD is a Clinical Psychologist in Belleville, Illinois. Qualified in 2017, 9 years ago. Accepts Medicare assignment. Licensed in Illinois and Indiana.

Years since qualifying
9
Licensed in
IL, IN
In the registry since
2019
Specialties on file
4
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

900 Royal Heights Rd Ste 14
Belleville, IL 62226-5457
Phone: (618) 744-7373
Fax: (618) 744-7373
Show map & directions

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

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence 071010027 (IL)
Clinical Neuropsychologist Taxonomy 103G00000X · Licence 20043233A (IN)
Psychologist Taxonomy 103T00000X · Licence 071010027 (IL)
Psychologist Taxonomy 103T00000X · Licence 20043233A (IN)

Record details

NPI number1043877475
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 21, 2019
Last updated in NPPESMay 21, 2019
Mailing address900 Royal Heights Rd Ste 14, Belleville, IL 62226-5457

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount