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

Dr. Sydney K Greenwalt, PHD

Individual provider Psychologist · NPI 1578305223

Dr. Sydney K Greenwalt, PHD is a Clinical Psychologist in Saint Louis, Missouri. Graduated from University of Missouri, Kansas City, School of Medicine in 2020, 6 years ago. Practices with St Louis Behavioral Medicine Institute Inc, a 70-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
6
Trained at
University of Missouri, Kansas City, School of Medicine
Licensed in
MO
In the registry since
2024
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1129 Macklind Ave
Saint Louis, MO 63110-1440
Phone: (314) 289-9411
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 2024019727 (MO)

Record details

NPI number1578305223
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedJune 12, 2024
Last updated in NPPESJune 12, 2024
Certification dateJune 12, 2024

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolUNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE
Graduated 2020 (6 years in practice)
Group practice St. Louis Behavioral Medicine Institute Inc — 70 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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