Margaret Farrell, MD
NPI 1265549257 · Child & Adolescent Psychiatry Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Farrell, MD is a Child & Adolescent Psychiatry Physician provider in San Antonio, TX (NPI 1265549257).
Provider details
- NPI number
- 1265549257
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- J3466 (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
19 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
- 2006-08-24
- Last updated
- 2020-02-13
- Certified
- 2020-02-13
Frequently asked questions
- What is Margaret Farrell's NPI number?
- Margaret Farrell's National Provider Identifier (NPI) is 1265549257, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Farrell's specialty?
- Margaret Farrell is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Farrell located?
- Margaret Farrell's practice location on file with NPPES is 8535 Tom Slick, San Antonio, TX 78229-3367.
- What is Margaret Farrell's phone number?
- The practice phone number listed in the NPPES registry for Margaret Farrell is (210) 616-0300.
- Does Margaret Farrell accept Medicare?
- Margaret Farrell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Farrell's NPI active?
- Yes — Margaret Farrell's NPI (1265549257) is active in the NPPES registry as of the last update on 2020-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.