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

Martha St John, MD, PA

Organization Psychiatry Physician · NPI 1134220650

Martha St John, MD, PA is a Psychiatry Physician in Houston, Texas. Licensed in Texas. Registered with an NPI since 2006.

Licensed in
TX
In the registry since
2006
What do these letters mean?
PA — Professional association
A form of business registration, not a clinical qualification.

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Practice location Address checks out

11767 Katy Fwy Ste 364
Houston, TX 77079-1716
Phone: (281) 497-3500
Fax: (281) 497-3512
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence L9500 (TX)

Record details

NPI number1134220650
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Martha St. John — Owner · (281) 497-3500
NPI enumeratedSeptember 26, 2006
Last updated in NPPESJuly 14, 2011
Mailing address11767 Katy Fwy, Suite 364, Houston, TX 77079-1716

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