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

Dr. James D Singleton, MD

Individual provider Rheumatology Physician · NPI 1104881226

Dr. James D Singleton, MD is a Rheumatology in Highlands Ranch, Colorado. Graduated from University of Kansas School of Med (KC/WICH/SAL) in 1983, 43 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
43
Trained at
University of Kansas School of Med (KC/WICH/SAL)
Licensed in
CO
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

206 W County Line Rd Ste 310
Highlands Ranch, CO 80129-2359
Phone: (303) 788-8355
Fax: (303) 788-4448
Show map & directions

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

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 28405 (CO)

Record details

NPI number1104881226
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 20, 2006
Last updated in NPPESApril 21, 2011

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF KANSAS SCHOOL OF MED (KC/WICH/SAL)
Graduated 1983 (43 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare