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

John A. Hamilton, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1427242148

John A. Hamilton, MD is an Obstetrics & Gynecology Physician in Saint Charles, Missouri. Licensed in Missouri. Registered with an NPI since 2007.

Licensed in
MO
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 1st Capitol Dr
Saint Charles, MO 63301-2844
Phone: (636) 947-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence R8317 (MO)

Record details

NPI number1427242148
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 6, 2007
Last updated in NPPESSeptember 6, 2007
Mailing address1836 Lackland Hill Pkwy, Attn Credentialing, Saint Louis, MO 63146-3572

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