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

Allen Sonstein, MD

Individual provider Internal Medicine Physician · NPI 1831194489

Allen Sonstein, MD is an Internal Medicine Physician in Austin, Texas. Licensed in Texas. Registered with an NPI since 2005.

Licensed in
TX
In the registry since
2005
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

7201 Manchaca Rd Ste B
Austin, TX 78745-5259
Phone: (512) 443-3577
Fax: (512) 445-6027
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence E3462 (TX)

Record details

NPI number1831194489
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 19, 2005
Last updated in NPPESJanuary 20, 2014
Mailing address7201 Manchaca Rd, Ste B, Austin, TX 78745-5259

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