Marcus O'Leary, MFTI
NPI 1326496050 · Marriage & Family Therapist · Westlake Village, CA
Marcus O'Leary, MFTI is a Marriage & Family Therapist provider in Westlake Village, CA (NPI 1326496050).
Provider details
- NPI number
- 1326496050
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFTI
- Sex
- Male
- Sole proprietor
- No
- License
- IMF97832 (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
10 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
- 2016-06-03
- Last updated
- 2017-02-08
Frequently asked questions
- What is Marcus O'Leary's NPI number?
- Marcus O'Leary's National Provider Identifier (NPI) is 1326496050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus O'Leary's specialty?
- Marcus O'Leary is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Marcus O'Leary located?
- Marcus O'Leary's practice location on file with NPPES is 650 Hampshire Rd, Westlake Village, CA 91361-2510.
- What is Marcus O'Leary's phone number?
- The practice phone number listed in the NPPES registry for Marcus O'Leary is (805) 497-0605.
- Is Marcus O'Leary's NPI active?
- Yes — Marcus O'Leary's NPI (1326496050) is active in the NPPES registry as of the last update on 2017-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.