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

Bryon Callahan, MD

Individual provider Emergency Medicine Physician · NPI 1659717734

Bryon Callahan, MD is an Emergency Medicine in Houston, Texas. Graduated from Texas Tech University Health Science Center School of Medicine in 2013, 13 years ago. Practices with Memorial Hermann Hospital Based Physician Group, a 269-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in North Carolina and Texas.

Years since qualifying
13
Trained at
Texas Tech University Health Science Center School of Medicine
Licensed in
NC, TX
In the registry since
2013
Specialties on file
2
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

1635 N Loop W
Houston, TX 77008
Phone: (713) 867-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1000 Blythe Blvd, Charlotte, NC 28203-5812 — (704) 355-2000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence Q8216 (TX)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 191711 (NC)

Record details

NPI number1659717734
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 16, 2013
Last updated in NPPESSeptember 13, 2024
Certification dateSeptember 13, 2024
Mailing address1635 North Loop W, Houston, TX 77008-1532

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolTEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Memorial Hermann Hospital Based Physician Group — 269 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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