Margaret O'Neill, PHD
NPI 1073696910 · Psychologist · San Luis Obispo, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret O'Neill, PHD is a Psychologist provider in San Luis Obispo, CA (NPI 1073696910).
Provider details
- NPI number
- 1073696910
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY11824 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2006-10-23
- Last updated
- 2022-03-11
- Certified
- 2022-03-11
Frequently asked questions
- What is Margaret O'Neill's NPI number?
- Margaret O'Neill's National Provider Identifier (NPI) is 1073696910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret O'Neill's specialty?
- Margaret O'Neill is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Margaret O'Neill located?
- Margaret O'Neill's practice location on file with NPPES is 1299 Briarwood Dr, San Luis Obispo, CA 93401-5966.
- What is Margaret O'Neill's phone number?
- The practice phone number listed in the NPPES registry for Margaret O'Neill is (805) 439-0156.
- Does Margaret O'Neill accept Medicare?
- Margaret O'Neill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret O'Neill's NPI active?
- Yes — Margaret O'Neill's NPI (1073696910) is active in the NPPES registry as of the last update on 2022-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.