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

Dr. Benjamin Philip Sieff, MD, PHD

Individual provider Psychiatry Physician · NPI 1902697519

Dr. Benjamin Philip Sieff, MD, PHD is a Psychiatry Physician in Austin, Texas. Licensed in Texas. Registered with an NPI since 2025.

Licensed in
TX
In the registry since
2025
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
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

1501 Red River St Fl 2
Austin, TX 78712-1845
Phone: (512) 495-5555
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence BP10094678 (TX)

Record details

NPI number1902697519
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedMay 14, 2025
Last updated in NPPESMay 14, 2025
Certification dateMay 14, 2025
Mailing address1501 Red River St Fl 2, Austin, TX 78712-1845

Other providers in Austin