John Tierney, M.D.
NPI 1952595076 · Student in an Organized Health Care Education/Training Program · Los Angeles, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Tierney, M.D. is a Student in an Organized Health Care Education/Training Program provider in Los Angeles, CA (NPI 1952595076).
Provider details
- NPI number
- 1952595076
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
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
18 yrs 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
- 2007-08-31
- Last updated
- 2021-11-30
- Certified
- 2021-11-30
Frequently asked questions
- What is John Tierney's NPI number?
- John Tierney's National Provider Identifier (NPI) is 1952595076, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Tierney's specialty?
- John Tierney 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 Tierney located?
- John Tierney's practice location on file with NPPES is 10543 Ayres Avenue, Los Angeles, CA 90064.
- What is John Tierney's phone number?
- The practice phone number listed in the NPPES registry for John Tierney is (949) 838-4883.
- Does John Tierney accept Medicare?
- John Tierney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Tierney's NPI active?
- Yes — John Tierney's NPI (1952595076) is active in the NPPES registry as of the last update on 2021-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.