IndividualActive
Susan Grenfell
NPI 1659409969 · Marriage & Family Therapist · Eureka, CA
Susan Grenfell is a Marriage & Family Therapist provider in Eureka, CA (NPI 1659409969).
Provider details
- NPI number
- 1659409969
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- MFC41606 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(89/100 index)
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
2910 H St
Eureka, CA 95501-4408
Phone: (707) 441-5229
Street-level locationGet directions
Mailing address
1212 Carson Rd
Fieldbrook, CA 95519-9738
Registry dates
- Enumerated
- 2007-02-28
- Last updated
- 2010-11-24
Frequently asked questions
- What is Susan Grenfell's NPI number?
- Susan Grenfell's National Provider Identifier (NPI) is 1659409969, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Grenfell's specialty?
- Susan Grenfell is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Susan Grenfell located?
- Susan Grenfell's practice location on file with NPPES is 2910 H St, Eureka, CA 95501-4408.
- What is Susan Grenfell's phone number?
- The practice phone number listed in the NPPES registry for Susan Grenfell is (707) 441-5229.
- Is Susan Grenfell's NPI active?
- Yes — Susan Grenfell's NPI (1659409969) is active in the NPPES registry as of the last update on 2010-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.