John Johnson, D.O.
NPI 1174579593 · Emergency Medical Services (Emergency Medicine) Physician · Round Rock, TX
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Johnson, D.O. is a Emergency Medical Services (Emergency Medicine) Physician provider in Round Rock, TX (NPI 1174579593).
Provider details
- NPI number
- 1174579593
- Entity type
- Individual
- Primary specialty
- Emergency Medical Services (Emergency Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- M0769 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Johnson's NPI number?
- John Johnson's National Provider Identifier (NPI) is 1174579593, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Johnson's specialty?
- John Johnson is listed in the NPPES registry with a primary specialty of Emergency Medical Services (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is John Johnson located?
- John Johnson's practice location on file with NPPES is 2400 Round Rock Ave, Round Rock, TX 78681-4004.
- What is John Johnson's phone number?
- The practice phone number listed in the NPPES registry for John Johnson is (512) 341-1000.
- Does John Johnson accept Medicare?
- John Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Johnson's NPI active?
- Yes — John Johnson's NPI (1174579593) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.