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

Douglas N. McMullen MD PA

Organization Internal Medicine Physician · NPI 1285641027

Douglas N. McMullen MD PA is an Internal Medicine Physician in Austin, 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

2301 W North Loop Blvd
Austin, TX 78756-2326
Phone: (512) 452-2506
Fax: (512) 853-9685
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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 F1810 (TX)

Record details

NPI number1285641027
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Douglas McMullen — President · (512) 452-2506
NPI enumeratedAugust 2, 2006
Last updated in NPPESFebruary 19, 2010
Mailing address2301 W North Loop Blvd, Austin, TX 78756-2326

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