Brett Grinnell, MSW
NPI 1710369715 · Clinical Social Worker · San Diego, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brett Grinnell, MSW is a Clinical Social Worker provider in San Diego, CA (NPI 1710369715).
Provider details
- NPI number
- 1710369715
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Social Worker104100000X
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
11 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2015-06-25
- Last updated
- 2023-03-28
- Certified
- 2023-03-28
Frequently asked questions
- What is Brett Grinnell's NPI number?
- Brett Grinnell's National Provider Identifier (NPI) is 1710369715, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brett Grinnell's specialty?
- Brett Grinnell is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Brett Grinnell located?
- Brett Grinnell's practice location on file with NPPES is 928 Broadway, San Diego, CA 92101-5514.
- What is Brett Grinnell's phone number?
- The practice phone number listed in the NPPES registry for Brett Grinnell is (619) 977-3716.
- Does Brett Grinnell accept Medicare?
- Brett Grinnell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brett Grinnell's NPI active?
- Yes — Brett Grinnell's NPI (1710369715) is active in the NPPES registry as of the last update on 2023-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.