Linda Mantz-Simmons, LMFT
NPI 1265561765 · Marriage & Family Therapist · Mountlake Terrace, WA
Linda Mantz-Simmons, LMFT is a Marriage & Family Therapist provider in Mountlake Terrace, WA (NPI 1265561765).
Provider details
- NPI number
- 1265561765
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- LF60457989 (WA)
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
- 2007-03-02
- Last updated
- 2023-01-26
- Certified
- 2023-01-26
Frequently asked questions
- What is Linda Mantz-Simmons's NPI number?
- Linda Mantz-Simmons's National Provider Identifier (NPI) is 1265561765, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Linda Mantz-Simmons's specialty?
- Linda Mantz-Simmons is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Linda Mantz-Simmons located?
- Linda Mantz-Simmons's practice location on file with NPPES is 6505 216th St Sw Ste 100, Mountlake Terrace, WA 98043-2089.
- What is Linda Mantz-Simmons's phone number?
- The practice phone number listed in the NPPES registry for Linda Mantz-Simmons is (425) 640-7009.
- Is Linda Mantz-Simmons's NPI active?
- Yes — Linda Mantz-Simmons's NPI (1265561765) is active in the NPPES registry as of the last update on 2023-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.