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

Dr. James William Roy, MD, PHD

Individual provider Internal Medicine Physician · NPI 1902833213

Dr. James William Roy, MD, PHD is an Internal Medicine Physician in Huntsville, Alabama. Licensed in Alabama, Georgia, North Carolina and Texas and 1 more. Registered with an NPI since 2006.

Licensed in
AL, GA, NC, TX, WI
In the registry since
2006
Specialties on file
10
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

3500 Memorial Pkwy SW
Huntsville, AL 35801-5318
Phone: (256) 213-1800
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sleep Medicine (Internal Medicine) Physician (primary) Taxonomy 207RS0012X · Licence MD.28174 (AL)
Internal Medicine Physician Taxonomy 207R00000X · Licence L9462 (TX)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 49052-020 (WI)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 2007-00583 (NC)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 059186 (GA)
Pediatrics Physician Taxonomy 208000000X · Licence L9462 (TX)
Pediatric Sleep Medicine Physician Taxonomy 2080S0012X · Licence 49052-020 (WI)
Pediatric Sleep Medicine Physician Taxonomy 2080S0012X · Licence 059186 (GA)
Pediatric Sleep Medicine Physician Taxonomy 2080S0012X · Licence MD.28174 (AL)
Pediatric Sleep Medicine Physician Taxonomy 2080S0012X · Licence 2007-00583 (NC)

Record details

NPI number1902833213
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 26, 2006
Last updated in NPPESMarch 6, 2020
Certification dateMarch 6, 2020

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