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 provides Psychiatry Physician services 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 Not confirmed with CMS for 15 years — call before visiting
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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