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
Mailing address206 W County Line Road, Suite 310, Highlands Ranch, CO 80129-2359

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