Physician Profile
Unclaimed ProfileAbout JOHNSON
Based in Dallas, TX, Gregory Lloyd Johnson, MD is listed in the NPI registry under diagnostic radiology. Gregory graduated from State University of New York Downstate Medical Center in 1994. Medicare claims data shows Gregory provided 1,704 services to 1,494 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
- (844) 389-5711
- Email not available
Practice Locations
2825 OAK LAWN AVE UNIT 192749
Dallas, TX 75219
Procedures Most Often Billed to Medicare
1,704 services · 1,494 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ct scan of chest with contrast | Imaging | 71260 |
957 |
| Ct scan of chest without contrast | Imaging | 71250 |
457 |
| Ct scan of chest with contrast | Imaging | 71260 |
162 |
| Ct scan of chest without contrast | Imaging | 71250 |
113 |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
15 |
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.
Also at this address 3
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 Dallas 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at State University of New York Downstate Medical Center 8
Other providers in the same specialty who trained at the same institution.
Class of 1994 at State University of New York Downstate Medical Center 8
Providers who graduated from the same medical school in the same year.
Also performs Ct scan of chest with contrast 8
Providers in TX who bill this service to Medicare most often.
Common questions
What does Dr. Johnson specialize in?
Dr. Johnson is a diagnostic radiology in Dallas, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DIAGNOSTIC RADIOLOGY”.
NPI registry
Where is Dr. Johnson located?
Dr. Johnson is listed at 2825 OAK LAWN AVE UNIT 192749, Dallas, TX 75219. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Johnson's phone number?
The number on file is (844) 389-5711. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Johnson?
Dr. Johnson's National Provider Identifier is 1326025057. 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. Johnson go to medical school?
Dr. Johnson attended State University of New York Downstate Medical Center, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Johnson have?
Dr. Johnson has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Johnson do most often?
According to Medicare billing data, Dr. Johnson performs imaging including ct scan of chest with contrast and ct scan of chest without contrast. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Johnson's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnson. 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.