Melissa Garthwaite, MA, LMHC
NPI 1891872057 · Mental Health Counselor · Seattle, WA
Melissa Garthwaite, MA, LMHC is a Mental Health Counselor provider in Seattle, WA (NPI 1891872057).
Provider details
- NPI number
- 1891872057
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- MA, LMHC
- Sex
- Female
- Sole proprietor
- Yes
- License
- LH00008591 (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
- 2006-11-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Melissa Garthwaite's NPI number?
- Melissa Garthwaite's National Provider Identifier (NPI) is 1891872057, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Garthwaite's specialty?
- Melissa Garthwaite is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Melissa Garthwaite located?
- Melissa Garthwaite's practice location on file with NPPES is 311 1st Ave S, Seattle, WA 98104-2537.
- What is Melissa Garthwaite's phone number?
- The practice phone number listed in the NPPES registry for Melissa Garthwaite is (206) 280-3682.
- Is Melissa Garthwaite's NPI active?
- Yes — Melissa Garthwaite's NPI (1891872057) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.