DR. MARK A DENNIS M.D.
NPI 1649256561
Radiology - Diagnostic Radiology in Englewood, CO

Active since December 22, 2005PECOS EnrolledAccepts Medicare Assignment
85.28/100
CMS Quality Rating
10800 E GEDDES AVE STE 300, ENGLEWOOD, CO 80112(303) 761-9190(720) 874-4462 Get Directions Write a Review

NPPES record last updated: December 14, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Mark A Dennis M.d. NPPES

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

DR. MARK A DENNIS M.D. (NPI 1649256561) is an individual diagnostic radiology provider in Englewood, Colorado, licensed in Colorado (23198) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1979).

NPPES Registry Identity

NPI1649256561
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. MARK A DENNISCredential: M.D.
Location Address10800 E GEDDES AVE STE 300Englewood, CO 80112-3895
Mailing Address10800 E Geddes Ave Ste 300Englewood, CO 80112-3895 · (303) 761-9190 · Fax (720) 874-4462
Fax(720) 874-4462
Sole ProprietorNo
Medical School CMSOtherGraduated 1979
Enumeration DateDecember 22, 2005
Last NPPES UpdateDecember 14, 2022
NPPES CertifiedDecember 14, 2022
NPI 1649256561 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses Licensed in CO · 23198 Licensed in NE · 25104 Licensed in KS · 04-36688 Licensed in HI · MD17507
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
10800 E GEDDES AVE STE 300, Englewood, CO 80112

Other Identifiers 19

Medicaid10025709000NE
Medicaid2301381LA
Medicaid1649256561WY
Medicaid1649256561IA
Medicaid200364600IN
Medicaid23727055NM
Medicaid01231984CO
Medicaid42866602AZ
Medicaid64048556KY
Medicaid104699390MI
Medicaid1649256561MT
Medicaid1649256561MO
Medicaid200425880AKS
Medicaid1649256561CA
Medicaid200638130AOK
Medicaid0224905WA
Medicaid200067205MO
Medicaid208221601TX
Medicaid84-059792913NE

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 and accepts Medicare assignment

Dr. Mark A Dennis M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8325947724
PECOS Enrollment IDI20091002000065
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.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Screening mammography 77067
Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.
1,188 services1,188 patients
Screening 3d breast mammography 77063
Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.
1,187 services1,187 patients
Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279
Diagnostic digital breast tomosynthesis is a 3D imaging test that allows doctors to examine your breast tissue layer by layer. It's performed on one or both sides. It helps in detecting abnormalities more accurately. It's often done in addition to other tests.
194 services193 patients
Limited ultrasound scan of 1 breast 76642
A limited ultrasound scan of one breast is a non-invasive imaging test. It uses sound waves to create pictures of the inside of your breast. It helps identify any unusual growths or changes. It's safe, quick, and typically painless.
142 services142 patients
Diagnostic mammography of 1 breast 77065
Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.
104 services104 patients
Diagnostic mammography of both breasts 77066
Diagnostic mammography involves using special imaging technology to capture detailed images of both breasts. This procedure helps in identifying any unusual changes or abnormalities. It's a crucial step in ensuring breast health and early detection of potential issues.
93 services93 patients

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.28/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality98.13
Improvement Activities40
Cost54.36

Other Providers at the Same Location NPPES 20

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

Radiology (Diagnostic Radiology)
10800 E GEDDES AVE STE 300
ENGLEWOOD, CO 80112
Radiology (Diagnostic Radiology)
10800 E GEDDES AVE STE 300
ENGLEWOOD, CO 80112
Radiology (Neuroradiology)
10800 E GEDDES AVE STE 300
ENGLEWOOD, CO 80112
Radiology (Diagnostic Radiology)
10800 E GEDDES AVE STE 300
ENGLEWOOD, CO 80112
Radiology (Diagnostic Radiology)
10800 E GEDDES AVE STE 300
ENGLEWOOD, CO 80112
Radiology (Vascular & Interventional Radiology)
10800 E GEDDES AVE STE 300
ENGLEWOOD, CO 80112
Radiology (Diagnostic Radiology)
10800 E GEDDES AVE STE 300
ENGLEWOOD, CO 80112
Radiology (Diagnostic Radiology)
10800 E GEDDES AVE STE 300
ENGLEWOOD, 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 Dennis's NPI number?

The NPI number for Mark Dennis is 1649256561. It was assigned to this individual provider in the NPPES registry on December 22, 2005.

Where is Mark Dennis located?

Mark Dennis practices at 10800 E Geddes Ave Ste 300, Englewood, CO 80112. The listed phone number is (303) 761-9190.

What is Mark Dennis's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Mark Dennis enrolled in Medicare?

Yes. Mark Dennis is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mark Dennis accept?

Health plans from Oscar Insurance Company list Mark Dennis 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 Dennis was last updated on December 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.