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

William James Calhoun, MD

Individual provider Allergy & Immunology (Internal Medicine) Physician · NPI 1811056567

William James Calhoun, MD is an Allergy & Immunology (Internal Medicine) Physician in Galveston, Texas. Licensed in Texas. Registered with an NPI since 2006.

Licensed in
TX
In the registry since
2006
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

301 University Blvd
Galveston, TX 77555-5302
Phone: (409) 772-2222
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence N1274 (TX)
Allergy & Immunology (Internal Medicine) Physician Taxonomy 207RA0201X · Licence N1274 (TX)

Record details

NPI number1811056567
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 8, 2006
Last updated in NPPESJanuary 24, 2020
Certification dateJanuary 24, 2020
Mailing address301 University Blvd, Galveston, TX 77555-5302

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