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

Dr. Gregory Joseph Weissler II, MD

Individual provider Pediatrics Physician · NPI 1861029514

Dr. Gregory Joseph Weissler II, MD is a Pediatrics Physician in Fenton, Missouri. Practices as a sole proprietor. Licensed in Missouri.

Licensed in
MO
In the registry since
2020
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

1345 Smizer Mill Rd Ste 1200
Fenton, MO 63026-7305
Phone: (636) 496-5021
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 2023013879 (MO)

Record details

NPI number1861029514
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 24, 2020
Last updated in NPPESSeptember 25, 2023
Certification dateJuly 6, 2023

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