C.J. TSAMASFYROS, M.D. LLC
NPI 1427293471
Legal Medicine in Denver, CO

Q: What is C.J. Tsamasfyros, M.D. LLC's NPI number?

The NPI number for C.J. Tsamasfyros, M.D. LLC is 1427293471. It was assigned to this organization in the NPPES registry on December 4, 2008. The provider was formerly known as Colorado Family Medicine PC.

Q: What is C.J. Tsamasfyros, M.D. LLC's specialty?

The primary specialty registered for this NPI is Legal Medicine with taxonomy code 173000000X.

Active since December 04, 2008CLIA 06D0511939 · Waiver

4500 E 9TH AVE, SUITE 220, DENVER, CO 80220(303) 322-2005(303) 322-4408 Get Directions Write a Review

NPPES record last updated: April 27, 2017. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About C.j. Tsamasfyros, M.d. Llc NPPES

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

C.J. TSAMASFYROS, M.D. LLC (NPI 1427293471), doing business as Colorado Family Medicine Pc, is a healthcare organization registered as a legal medicine in Denver, Colorado and active in the NPI registry since December 2008. The organization holds a CLIA Waiver certificate valid through August 31, 2028 and lists Constantine J Tsamasfyros, Manager, as its authorized official.

NPPES Registry Identity

NPI1427293471

Entity TypeOrganization

Primary Taxonomy173000000X

Legal Business NameC.J. TSAMASFYROS, M.D. LLC

Location Address4500 E 9TH AVE, SUITE 220Denver, CO 80220-3912

Mailing Address4500 E 9th Ave, Suite 220Denver, CO 80220-3912 · (303) 322-2005 · Fax (303) 322-4408

Phone(303) 322-2005

Fax(303) 322-4408

Organization SubpartNo

Authorized OfficialConstantine J TsamasfyrosManager · (303) 322-2005

Enumeration DateDecember 4, 2008

Last NPPES UpdateApril 27, 2017

✔ NPI 1427293471 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyLegal MedicineOther Service Providers

Taxonomy Code173000000X

License✔ Licensed in CO · 17165

Definition

The specialty areas of medicine concerned with matters of, and relations with, substantive law and legal institutions; such as the conduct of medical examinations at crime scenes, performance of autopsies, giving of expert medical testimony in judicial proceedings, medical treatment of inmates of penal institutions, the practice of trauma medicine in law enforcement settings, and other clinical practice and medical science applications in the fields of law, law enforcement, and corrections.

Also ListedDurable Medical Equipment & Medical SuppliesTaxonomy 332B00000X · License 17165 (CO)

4500 E 9TH AVE, Denver, CO 80220

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Other Names 1

Former Legal Business NameColorado Family Medicine Pc

Other Identifiers 5

Other17165Co License

OtherD23206CO · Upin

Medicaid1171651CO

Medicare UPINCE5718

Medicare NSC6498090001CO

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

C.j. Tsamasfyros, M.d. Llc 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 C.J. Tsamasfyros, M.D. LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Constantine Tsamasfyros, M.D.

Family Practice

NPI 1114989332

128 STEELE ST #300
Denver, CO 80206

(303) 322-2005

✔ PECOS✔ Accepts Medicare1.2 mi

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 06D0511939

Cj Tsamasfyros, MD, LLC · Denver, CO

Active · expires Aug 31, 2028

CLIA Number06D0511939

Laboratory TypePhysician Office

Certificate Effective DateSeptember 1, 2026

Certificate Expiration DateAugust 31, 2028

Laboratory DirectorDr. Constantine J. Tsamasfyros

Laboratory Phone(303) 322-2005

Laboratory LocationCj Tsamasfyros, MD, LLC4500 E 9th Ave, Ste 220, Denver, CO 80220

CLIA data matches this NPI record on: Address Phone

This certificate is issued to a laboratory to perform only waived tests.

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 C.J. Tsamasfyros, M.D. LLC's NPI number?

The NPI number for C.J. Tsamasfyros, M.D. LLC is 1427293471. It was assigned to this organization in the NPPES registry on December 4, 2008. The provider was formerly known as Colorado Family Medicine PC.

Where is C.J. Tsamasfyros, M.D. LLC located?

C.J. Tsamasfyros, M.D. LLC is located at 4500 E 9th Ave Suite 220, Denver, CO 80220. The listed phone number is (303) 322-2005.

What is C.J. Tsamasfyros, M.D. LLC's specialty?

The primary specialty registered for this NPI is Legal Medicine with taxonomy code 173000000X.

Is C.J. Tsamasfyros, M.D. LLC enrolled in Medicare?

Yes. C.J. Tsamasfyros, M.D. LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through C.J. Tsamasfyros, M.D. LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to C.J. Tsamasfyros, M.D. LLC. 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.

Does C.J. Tsamasfyros, M.D. LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 06D0511939) is associated with this NPI, valid through August 31, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for C.J. Tsamasfyros, M.D. LLC was last updated on April 27, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.