What is Deidra Somerville's NPI number?

Deidra Somerville's National Provider Identifier (NPI) is 1851276018, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Deidra Somerville's specialty?

Deidra Somerville is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).

Where is Deidra Somerville located?

Deidra Somerville's practice location on file with NPPES is 1530 Buchanan St, San Francisco, CA 94115-3709.

What is Deidra Somerville's phone number?

The practice phone number listed in the NPPES registry for Deidra Somerville is (650) 437-5475.

Is Deidra Somerville's NPI active?

Yes — Deidra Somerville's NPI (1851276018) is active in the NPPES registry as of the last update on 2025-08-07.

IndividualActive

Deidra Somerville, ASW

NPI 1851276018 · Mental Health Counselor · San Francisco, CA

Deidra Somerville, ASW is a Mental Health Counselor provider in San Francisco, CA (NPI 1851276018).

Provider details

NPI number: 1851276018
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Credential: ASW
Sex: Female
Sole proprietor: No
License: ASW124362 (CA)

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800XLicense ASW124362 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(63/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
3 documented practice locations

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

1530 Buchanan St

San Francisco, CA 94115-3709

Phone: (650) 437-5475

Street-level locationGet directions

More CA providers

Mailing address

1486 Huntington Ave

South San Francisco, CA 94080-5970

Additional practice locations (2)

129 Dakota St
San Francisco, CA 94107-3307
Phone: (650) 437-5475
1486 Huntington Ave
South San Francisco, CA 94080-5970
Phone: (650) 437-5475

Enumerated: 2025-08-07
Last updated: 2025-08-07
Certified: 2025-08-07

Frequently asked questions

What is Deidra Somerville's NPI number?: Deidra Somerville's National Provider Identifier (NPI) is 1851276018, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Deidra Somerville's specialty?: Deidra Somerville is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
Where is Deidra Somerville located?: Deidra Somerville's practice location on file with NPPES is 1530 Buchanan St, San Francisco, CA 94115-3709.
What is Deidra Somerville's phone number?: The practice phone number listed in the NPPES registry for Deidra Somerville is (650) 437-5475.
Is Deidra Somerville's NPI active?: Yes — Deidra Somerville's NPI (1851276018) is active in the NPPES registry as of the last update on 2025-08-07.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.