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OSTEOPOROSIS CENTER OF HIGHLANDS RANCH
NPI 1275598229
Internal Medicine - Rheumatology in Littleton, CO

Active since April 20, 2006
4 W DRY CREEK CIR STE 230, LITTLETON, CO 80120(303) 788-8355(303) 788-4448 Get Directions Write a Review

NPPES record last updated: January 4, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Osteoporosis Center Of Highlands Ranch NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

OSTEOPOROSIS CENTER OF HIGHLANDS RANCH (NPI 1275598229) is a healthcare organization registered as a rheumatology in Littleton, Colorado and active in the NPI registry since April 2006. The organization lists James D Singleton, President, as its authorized official.

NPPES Registry Identity

NPI1275598229
Entity TypeOrganization
Primary Taxonomy207RR0500X
Legal Business NameSOUTH DENVER MEDICINE ASSOCIATES PC
Location Address4 W DRY CREEK CIR STE 230Littleton, CO 80120-4458
Mailing Address4 W Dry Creek Cir Ste 230Littleton, CO 80120-4458 · (303) 788-8355 · Fax (303) 788-4448
Phone(303) 788-8355
Fax(303) 788-4448
Organization SubpartNo
Authorized OfficialJames D SingletonPresident · (303) 788-8355
Enumeration DateApril 20, 2006
Last NPPES UpdateJanuary 4, 2018
✔ NPI 1275598229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in CO · 28405
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
4 W DRY CREEK CIR STE 230, Littleton, CO 80120
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Other Names 1

Doing Business AsOsteoporosis Center Of Highlands Ranch

Other Identifiers 3

OtherB2723CO · Railroad Medicare
Medicaid04021416CO
Medicaid01284058CO

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Osteoporosis Center Of Highlands Ranch is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Osteoporosis Center Of Highlands Ranch, which bills Medicare for the services this clinician delivers.

Clinician (1)

James Singleton, MD
Rheumatology
NPI 1104881226
206 W COUNTY LINE ROAD SUITE 310
Highlands Ranch, CO 80129
(303) 788-8355
✔ PECOS✔ Accepts Medicare2.5 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is South Denver Medicine Associates PC's NPI number?

The NPI number for South Denver Medicine Associates PC is 1275598229. It was assigned to this organization in the NPPES registry on April 20, 2006. The provider is doing business as Osteoporosis Center Of Highlands Ranch.

Where is South Denver Medicine Associates PC located?

South Denver Medicine Associates PC is located at 4 W Dry Creek Cir Ste 230, Littleton, CO 80120. The listed phone number is (303) 788-8355.

What is South Denver Medicine Associates PC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is South Denver Medicine Associates PC enrolled in Medicare?

Yes. South Denver Medicine Associates PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through South Denver Medicine Associates PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Rheumatology) reassigns their Medicare billing to South Denver Medicine Associates PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for South Denver Medicine Associates PC was last updated on January 4, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.