DR. MARK JOSEPH CASSIDY D.M.D.
NPI 1619004868
Dentist - Orthodontics and Dentofacial Orthopedics in Centennial, CO

Active since February 27, 2007PECOS Enrolled
6979 S HOLLY CIR, #280, CENTENNIAL, CO 80112(303) 779-1977(303) 779-2530 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Mark Joseph Cassidy D.m.d. NPPES

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

DR. MARK JOSEPH CASSIDY D.M.D. (NPI 1619004868) is an individual orthodontics and dentofacial orthopedics provider in Centennial, Colorado, licensed in Colorado (105766) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1619004868
Entity TypeIndividualMale
Primary Taxonomy1223X0400X
Provider Legal NameDR. MARK JOSEPH CASSIDYCredential: D.M.D.
Location Address6979 S HOLLY CIR, #280Centennial, CO 80112-1577
Mailing Address6979 S Holly Cir, #280Centennial, CO 80112-1577 · (303) 779-1977 · Fax (303) 779-2530
Fax(303) 779-2530
Sole ProprietorYes
Enumeration DateFebruary 27, 2007
Last NPPES UpdateJuly 8, 2007
NPI 1619004868 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDentist · Orthodontics and Dentofacial OrthopedicsDental Providers
Taxonomy Code1223X0400X
License Licensed in CO · 105766
Definition
That area of dentistry concerned with the supervision, guidance and correction of the growing or mature dentofacial structures, including those conditions that require movement of teeth or correction of malrelationships and malformations of their related structures and the adjustment of relationships between and among teeth and facial bones by the application of forces and/or the stimulation and redirection of functional forces within the craniofacial complex. Major responsibilities of orthodontic practice include the diagnosis, prevention, interception and treatment of all forms of malocclusion of the teeth and associated alterations in their surrounding structures; the design, application and control of functional and corrective appliances; and the guidance of the dentition and its supporting structures to attain and maintain optimum occlusal relations in physiologic and esthetic harmony among facial and cranial structures.
6979 S HOLLY CIR, Centennial, CO 80112

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dr. Mark Joseph Cassidy D.m.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80112 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$89.43 typical visit price
range $58.06 – $174.82
Typical copayment $22.35 (range $14.51 – $43.70)
Most-billed visit code 99203
Established Patient
$72.20 typical visit price
range $18.88 – $142.79
Typical copayment $18.05 (range $4.72 – $35.69)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 18

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

Physical Therapist
6979 S HOLLY CIR, STE 105
CENTENNIAL, CO 80112
Counselor (Mental Health)
6979 S HOLLY CIR
CENTENNIAL, CO 80112
Dentist
6979 S HOLLY CIR, SUITE 150
CENTENNIAL, CO 80112
Surgery
6979 S HOLLY CIR, SUITE 275
CENTENNIAL, CO 80112
Dentist (General Practice)
6979 S HOLLY CIR, SUITE 235
CENTENNIAL, CO 80112
Physical Therapist
6979 S HOLLY CIR, STE 105
CENTENNIAL, CO 80112
Dentist
6979 S HOLLY CIR, #225
CENTENNIAL, CO 80112
Specialist
6979 S HOLLY CIR, SUITE 190
CENTENNIAL, CO 80112

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 Mark Cassidy's NPI number?

The NPI number for Mark Cassidy is 1619004868. It was assigned to this individual provider in the NPPES registry on February 27, 2007.

Where is Mark Cassidy located?

Mark Cassidy practices at 6979 S Holly Cir #280, Centennial, CO 80112. The listed phone number is (303) 779-1977.

What is Mark Cassidy's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Orthodontics and Dentofacial Orthopedics, with taxonomy code 1223X0400X.

Is Mark Cassidy enrolled in Medicare?

Yes. Mark Cassidy is registered in the Medicare PECOS enrollment system.

What insurance does Mark Cassidy accept?

Health plans from Anthem Blue Cross and Blue Shield, BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 6 other insurers list Mark Cassidy as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Cassidy was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.