IndividualActive
Marcus Williams
NPI 1639913338 · Behavior Technician · Carlsbad, CA
Marcus Williams is a Behavior Technician provider in Carlsbad, CA (NPI 1639913338).
Provider details
- NPI number
- 1639913338
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
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
2 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
2928 Jefferson St Ste 100
Carlsbad, CA 92008-2374
Phone: (855) 223-7123
Fax: (619) 374-7134
Street-level locationGet directions
Mailing address
Po Box 33568
San Diego, CA 92163-3568
Registry dates
- Enumerated
- 2024-06-19
- Last updated
- 2024-06-19
- Certified
- 2024-06-19
Frequently asked questions
- What is Marcus Williams's NPI number?
- Marcus Williams's National Provider Identifier (NPI) is 1639913338, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Williams's specialty?
- Marcus Williams is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Marcus Williams located?
- Marcus Williams's practice location on file with NPPES is 2928 Jefferson St Ste 100, Carlsbad, CA 92008-2374.
- What is Marcus Williams's phone number?
- The practice phone number listed in the NPPES registry for Marcus Williams is (855) 223-7123.
- Is Marcus Williams's NPI active?
- Yes — Marcus Williams's NPI (1639913338) is active in the NPPES registry as of the last update on 2024-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.