Gretchen Blake, LCSW
NPI 1861543704 · Clinical Social Worker · Sacramento, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Blake, LCSW is a Clinical Social Worker provider in Sacramento, CA (NPI 1861543704).
Provider details
- NPI number
- 1861543704
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LCS18602 (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
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
- 2007-01-16
- Last updated
- 2022-02-11
- Certified
- 2019-12-11
Frequently asked questions
- What is Gretchen Blake's NPI number?
- Gretchen Blake's National Provider Identifier (NPI) is 1861543704, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Blake's specialty?
- Gretchen Blake is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Gretchen Blake located?
- Gretchen Blake's practice location on file with NPPES is 2008 Morse Ave, Sacramento, CA 95825-2135.
- What is Gretchen Blake's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Blake is (916) 973-5300.
- Does Gretchen Blake accept Medicare?
- Gretchen Blake is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Blake's NPI active?
- Yes — Gretchen Blake's NPI (1861543704) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.