Maryanne Duffy, MFT #26013
NPI 1942919717 · Mental Health Counselor · Lakewood, CA
Maryanne Duffy, MFT #26013 is a Mental Health Counselor provider in Lakewood, CA (NPI 1942919717).
Provider details
- NPI number
- 1942919717
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- MFT #26013
- Sex
- Female
- Sole proprietor
- Yes
- License
- MFT26013 (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
3 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
- 2022-11-21
- Last updated
- 2022-11-21
- Certified
- 2022-11-20
Frequently asked questions
- What is Maryanne Duffy's NPI number?
- Maryanne Duffy's National Provider Identifier (NPI) is 1942919717, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryanne Duffy's specialty?
- Maryanne Duffy is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Maryanne Duffy located?
- Maryanne Duffy's practice location on file with NPPES is 4537 Shadeway Rd, Lakewood, CA 90713-2833.
- What is Maryanne Duffy's phone number?
- The practice phone number listed in the NPPES registry for Maryanne Duffy is (562) 241-9721.
- Is Maryanne Duffy's NPI active?
- Yes — Maryanne Duffy's NPI (1942919717) is active in the NPPES registry as of the last update on 2022-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.