John Marshall Leynes, RN
NPI 1770319188 · Critical Care Medicine Registered Nurse · San Antonio, TX
John Marshall Leynes, RN is a Critical Care Medicine Registered Nurse provider in San Antonio, TX (NPI 1770319188).
Provider details
- NPI number
- 1770319188
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- No
- License
- 817843 (TX)
Specialties & taxonomies
Nursing Service Providers
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
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
- 2024-09-11
- Last updated
- 2024-09-11
- Certified
- 2024-09-11
Frequently asked questions
- What is John Marshall Leynes's NPI number?
- John Marshall Leynes's National Provider Identifier (NPI) is 1770319188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Marshall Leynes's specialty?
- John Marshall Leynes is listed in the NPPES registry with a primary specialty of Critical Care Medicine Registered Nurse (Nursing Service Providers).
- Where is John Marshall Leynes located?
- John Marshall Leynes's practice location on file with NPPES is 7400 Merton Minter St, San Antonio, TX 78229-4404.
- What is John Marshall Leynes's phone number?
- The practice phone number listed in the NPPES registry for John Marshall Leynes is (210) 617-5300.
- Is John Marshall Leynes's NPI active?
- Yes — John Marshall Leynes's NPI (1770319188) is active in the NPPES registry as of the last update on 2024-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.