John Karns, DO
NPI 1427843317 · Student in an Organized Health Care Education/Training Program · San Antonio, TX
John Karns, DO is a Student in an Organized Health Care Education/Training Program provider in San Antonio, TX (NPI 1427843317).
Provider details
- NPI number
- 1427843317
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2025-04-11
- Last updated
- 2025-04-11
- Certified
- 2025-04-11
Frequently asked questions
- What is John Karns's NPI number?
- John Karns's National Provider Identifier (NPI) is 1427843317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Karns's specialty?
- John Karns is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is John Karns located?
- John Karns's practice location on file with NPPES is 7703 Floyd Curl Dr, San Antonio, TX 78229-3901.
- What is John Karns's phone number?
- The practice phone number listed in the NPPES registry for John Karns is (210) 567-5711.
- Is John Karns's NPI active?
- Yes — John Karns's NPI (1427843317) is active in the NPPES registry as of the last update on 2025-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.