What is William Bynum's NPI number?

William Bynum's National Provider Identifier (NPI) is 1861238339, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Bynum's specialty?

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

Where is William Bynum located?

William Bynum's practice location on file with NPPES is 1033 Laurel St, San Carlos, CA 94070-3918.

What is William Bynum's phone number?

The practice phone number listed in the NPPES registry for William Bynum is (650) 394-5155.

Is William Bynum's NPI active?

Yes — William Bynum's NPI (1861238339) is active in the NPPES registry as of the last update on 2026-01-05.

IndividualActive

William Bynum, CBIS

NPI 1861238339 · Mental Health Counselor · San Carlos, CA

William Bynum, CBIS is a Mental Health Counselor provider in San Carlos, CA (NPI 1861238339).

Provider details

NPI number: 1861238339
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Credential: CBIS
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800X
Behavioral Health & Social Service Providers

Profile Score

Established profile(50/100 index)

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

Registry tenure38% of score
1 yr 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

1033 Laurel St

San Carlos, CA 94070-3918

Phone: (650) 394-5155

Street-level locationGet directions

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Mailing address