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

Dr. Mark David Shermis, PHD

Individual provider Psychologist · NPI 1346870953

Dr. Mark David Shermis, PHD is a Psychologist in The Woodlands, Texas. Practices as a sole proprietor. Licensed in California, Florida, Indiana and Ohio and 1 more.

Licensed in
CA, FL, IN, OH, TX
In the registry since
2020
Specialties on file
5
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

14 S Braided Branch Dr
The Woodlands, TX 77375-0174
Phone: (954) 899-8069
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 38128 (TX)
Psychologist Taxonomy 103T00000X · Licence 6634 (OH)
Psychologist Taxonomy 103T00000X · Licence 16626 (CA)
Psychologist Taxonomy 103T00000X · Licence 6586 (FL)
Psychologist Taxonomy 103T00000X · Licence 20040723A (IN)

Record details

NPI number1346870953
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 23, 2020
Last updated in NPPESJanuary 23, 2020
Certification dateJanuary 23, 2020
Mailing address14 S Braided Branch Dr, The Woodlands, TX 77375-0174

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