Physician Profile
Unclaimed ProfileAbout GREGORY
Based in Sioux Falls, SD, Christopher Gregory, MD is listed in the NPI registry under diagnostic radiology. Christopher graduated from Johns Hopkins University School of Medicine in 1985.
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
Common questions
What does Dr. Gregory specialise in?
Dr. Gregory is a diagnostic radiology in Sioux Falls, SD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DIAGNOSTIC RADIOLOGY”.
NPI registry
Where is Dr. Gregory located?
Dr. Gregory is listed at 1325 S. CLIFF AVE, Sioux Falls, SD 57105. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Gregory's phone number?
The number on file is (605) 322-7510. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Gregory's NPI number?
Dr. Gregory's National Provider Identifier is 1821050212. 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
Where did Dr. Gregory go to medical school?
Dr. Gregory attended Johns Hopkins University School of Medicine, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Gregory been practising?
Dr. Gregory has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Gregory do most often?
According to Medicare billing data, Dr. Gregory performs imaging including x-ray of chest, 1 view and nuclear medicine study from skull base to mid-thigh with ct scan. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Gregory confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gregory. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (605) 322-7510
- Email not available
Practice Locations
1325 S. CLIFF AVE
Sioux Falls, SD 57105
Procedures Most Often Billed to Medicare
2,342 services · 2,215 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| X-ray of chest, 1 view | Imaging | 71045 |
518 |
| Nuclear medicine study from skull base to mid-thigh with ct scan | Imaging | 78815 |
312 |
| X-ray of chest, 2 views | Imaging | 71046 |
149 |
| Ct scan head or brain without contrast | Imaging | 70450 |
135 |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
134 |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
129 |
| X-ray of chest, 2 views | Imaging | 71046 |
100 |
| Ct scan of chest with contrast | Imaging | 71260 |
81 |
| X-ray of abdomen, 1 view | Imaging | 74018 |
73 |
| Ct scan of blood vessels of chest with contrast | Imaging | 71275 |
62 |
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 2
Same specialty, same street address — most likely the same department or group.
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.
Other diagnostic radiology specialists in Sioux Falls 6
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Johns Hopkins University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at Johns Hopkins University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs X-ray of chest, 1 view 8
Providers in SD who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.