Physician Profile
Unclaimed ProfileAbout Dr. Dennis
Mark A Dennis, M.D. is a healthcare provider in Englewood, CO specializing in diagnostic radiology. Medicare claims data shows Mark provided 2,924 services to 2,923 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (303) 761-9190
- Email not available
Practice Locations
10800 E GEDDES AVE STE 300
Englewood, CO 80112
Procedures Most Often Billed to Medicare
2,924 services · 2,923 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Screening mammography | Imaging | 77067 |
1,188 |
| Screening 3d breast mammography | Imaging | 77063 |
1,187 |
| Limited ultrasound scan of 1 breast | Imaging | 76642 |
142 |
| Diagnostic mammography of 1 breast | Imaging | 77065 |
104 |
| Diagnostic mammography of both breasts | Imaging | 77066 |
93 |
| Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) | Billing code | G0279 |
194 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
16 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other diagnostic radiology specialists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 27 related providers in 4 groups
Other diagnostic radiology specialists in Englewood 3
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1979 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Screening mammography 8
Providers in CO who bill this service to Medicare most often.
Common questions
What is Dr. Dennis's specialty?
Dr. Dennis is a diagnostic radiology in Englewood, CO. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DIAGNOSTIC RADIOLOGY”.
NPI registry
Where can I find Dr. Dennis?
Dr. Dennis is listed at 10800 E GEDDES AVE STE 300, Englewood, CO 80112. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Dennis?
The number on file is (303) 761-9190. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Dennis?
Dr. Dennis's National Provider Identifier is 1649256561. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Dennis's medical education?
Dr. Dennis attended Other, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Dennis have?
Dr. Dennis has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Dennis known for?
According to Medicare billing data, Dr. Dennis performs imaging including screening mammography and screening 3d breast mammography, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Dennis's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Dennis. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.