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

Dr. John Martin Leclaire, MD

Individual provider Neurology Physician · NPI 1174104970

Dr. John Martin Leclaire, MD is a Neurology Physician in Saint Louis, Missouri. Licensed in Missouri. Registered with an NPI since 2021.

Licensed in
MO
In the registry since
2021
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 Address checks out

1 Barnes Jewish Hospital Plz
Saint Louis, MO 63110-1003
Phone: (615) 936-0060
Fax: (615) 936-0223
Show map & directions

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

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 2025013232 (MO)

Record details

NPI number1174104970
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 14, 2021
Last updated in NPPESMay 30, 2025
Certification dateMay 30, 2025

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