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

George Mark Shannan

Individual provider Chiropractor · NPI 1548374127

George Mark Shannan is a Chiropractic in Austin, Texas. Qualified in 1997, 29 years ago. Accepts Medicare assignment. Licensed in Texas.

Years since qualifying
29
Licensed in
TX
In the registry since
2006
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Practice location Address checks out

5840 Balcones Dr Ste 100
Austin, TX 78731-4246
Phone: (512) 452-9469
Fax: (512) 452-7283
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 7335 (TX)

Record details

NPI number1548374127
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedAugust 19, 2006
Last updated in NPPESMarch 6, 2008
Mailing address4709 Lookout Mountain Cv, Austin, TX 78731-3654

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCHIROPRACTIC
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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