Quick answers
- Which hospitals does Gregory L. Johnson work at?
- Medicare's official clinician data lists Gregory L. Johnson at 1 hospital: Dell Children's Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory L. Johnson see patients?
- Medicare's clinician data lists 5 practice locations, including Round Rock, TX, Austin, TX and Cedar Park, TX. Call before your visit to confirm the address.
- What is Gregory L. Johnson's specialty?
- Medicare lists Pediatric Medicine as the primary specialty.
- Does Gregory L. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory L. Johnson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Gregory L. Johnson?
- (512) 324-0000, as listed in official Medicare / NPI Registry data.
- What is Gregory L. Johnson's NPI number?
- 1437107331. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory L. Johnson works
Medicare's Facility Affiliation Data lists Gregory L. Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Dell Children's Medical CenterAustin, TX · Children's Hospital · CCN 453310
Practice locations
Addresses where Gregory L. Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Hesters Crossing RdRound Rock, TX 78681
- 1301 Barbara Jordan BlvdAustin, TX 78723
- 1301 Medical PkwyCedar Park, TX 78613
- 4900 Mueller BlvdAustin, TX 78723 (512) 324‑0000
- 4910 Mueller BlvdAusitin, TX 78723
Group practices
Medicare enrollment lists Gregory L. Johnson as a member of this group (CMS data updated 2026-10-02).
- Dell Childrens Medical Group115 clinicians in the group
Specialties
- Pediatric Medicineprimary
Other pediatricians in Round Rock
Clinicians with the same Medicare primary specialty in Round Rock, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Creighton University School Of Medicine |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437107331 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians