1. Home
  2. Directory
  3. Colorado
  4. Boulder
  5. Internal Medicine
  6. NPI Profile

OPTUMCARE COLORADO MEDICAL GROUP LLC
NPI 1922893478
Internal Medicine - Rheumatology in Boulder, CO

Active since April 14, 2025
2503 WALNUT ST STE 200, BOULDER, CO 80302(720) 494-4700(720) 494-4706 Get Directions Write a Review

NPPES record last updated: April 14, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Optumcare Colorado Medical Group Llc NPPES

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

OPTUMCARE COLORADO MEDICAL GROUP LLC (NPI 1922893478), doing business as Colorado Center For Arthritis & Osteoporosis, is a healthcare organization registered as a rheumatology in Boulder, Colorado and active in the NPI registry since April 2025. The organization lists Emily Castillo, Associate Director, as its authorized official.

NPPES Registry Identity

NPI1922893478
Entity TypeOrganization
Primary Taxonomy207RR0500X
Legal Business NameOPTUMCARE COLORADO MEDICAL GROUP LLC
Location Address2503 WALNUT ST STE 200Boulder, CO 80302-5745
Mailing AddressPo Box 35380Las Vegas, NV 89133-5380 · (702) 579-3203
Phone(720) 494-4700
Fax(720) 494-4706
Organization SubpartNo
Authorized OfficialEmily CastilloAssociate Director · (702) 480-2550
Enumeration DateApril 14, 2025
NPPES CertifiedApril 14, 2025
✔ NPI 1922893478 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
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.
2503 WALNUT ST STE 200, Boulder, CO 80302
Open in Google Maps ↗

Other Names 1

Doing Business AsColorado Center For Arthritis & Osteoporosis

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JOSEPH RANDALL LUTT M.D.
Internal Medicine (Rheumatology)
2503 WALNUT ST STE 200
BOULDER, CO 80302
Boulder County (720) 494-4706
SHIRAZ MOINUDDIN M.D.
Internal Medicine (Rheumatology)
2503 WALNUT ST STE 200
BOULDER, CO 80302
Boulder County (720) 494-4700
TAKE TWO HEALTH PC
Clinic/Center (Primary Care)
2503 WALNUT ST STE 200
BOULDER, CO 80302
Boulder County (303) 557-2250

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 Optumcare Colorado Medical Group LLC's NPI number?

The NPI number for Optumcare Colorado Medical Group LLC is 1922893478. It was assigned to this organization in the NPPES registry on April 14, 2025. The provider is doing business as Colorado Center for Arthritis & Osteoporosis.

Where is Optumcare Colorado Medical Group LLC located?

Optumcare Colorado Medical Group LLC is located at 2503 Walnut St Ste 200, Boulder, CO 80302. The listed phone number is (720) 494-4700.

What is Optumcare Colorado Medical Group LLC's specialty?

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

When was this NPI record last updated?

The NPPES record for Optumcare Colorado Medical Group LLC was last updated on April 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.