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

Don Shannon Callens, MD

Individual provider Family Medicine Physician · NPI 1528285079

Don Shannon Callens, MD is a Family Practice in Liberty, Texas. Graduated from University of Texas Medical Branch at Galveston in 2004, 22 years ago. Accepts Medicare assignment. Licensed in Texas.

Years since qualifying
22
Trained at
University of Texas Medical Branch at Galveston
Licensed in
TX
In the registry since
2007
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

720 Travis
Liberty, TX 77575-4828
Phone: (936) 336-6439
Fax: (936) 336-8870
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence M3952 (TX)

Record details

NPI number1528285079
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 19, 2007
Last updated in NPPESSeptember 4, 2009

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesHOSPICE/PALLIATIVE CARE
Medical schoolUNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduated 2004 (22 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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