Based in Austin, TX, Gregory Leigh Johnson, M.D. is listed in the NPI registry under pediatric medicine. Gregory graduated from Creighton University School of Medicine in 1989. Gregory is also listed as specialising in pediatric cardiology.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Johnson is a pediatric medicine in Austin, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PEDIATRIC MEDICINE”.
NPI registry
Dr. Johnson is listed at 4314 MEDICAL PKWY SUITE 200, Austin, TX 78756. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (512) 454-1110. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Johnson's National Provider Identifier is 1437107331. 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
Dr. Johnson attended Creighton University School of Medicine, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
Dr. Johnson has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Johnson provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and ultrasound of heart with color-depicted blood flow, rate and valve function. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
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.
Guide.md
Source: NPPES NPI Registry
4314 MEDICAL PKWY SUITE 200
Austin, TX 78756
70 services · 57 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
27 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
16 |
| Ultrasound of heart for congenital defect | Treatment | 93303 |
14 |
| Ultrasound of heart blood flow, valves and chambers | Treatment | 93320 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Same specialty, same street address — most likely the same department or group.
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Same specialty, same city.
Other providers in the same specialty who trained at the same institution.
Providers who graduated from the same medical school in the same year.
Providers in TX 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.