IndividualActive
William O'Conner
NPI 1851904858 · Behavior Technician · Fairfax, VA
William O'Conner is a Behavior Technician provider in Fairfax, VA (NPI 1851904858).
Provider details
- NPI number
- 1851904858
- 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(57/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
11200 Waples Mill Rd Ste 100
Fairfax, VA 22030-7475
Phone: (703) 237-2219
Fax: (703) 237-2729
Street-level locationGet directions
Mailing address
3016 Cedarwood Ln
Falls Church, VA 22042-4302
Registry dates
- Enumerated
- 2020-08-28
- Last updated
- 2020-08-28
- Certified
- 2020-08-28
Frequently asked questions
- What is William O'Conner's NPI number?
- William O'Conner's National Provider Identifier (NPI) is 1851904858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William O'Conner's specialty?
- William O'Conner is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is William O'Conner located?
- William O'Conner's practice location on file with NPPES is 11200 Waples Mill Rd Ste 100, Fairfax, VA 22030-7475.
- What is William O'Conner's phone number?
- The practice phone number listed in the NPPES registry for William O'Conner is (703) 237-2219.
- Is William O'Conner's NPI active?
- Yes — William O'Conner's NPI (1851904858) is active in the NPPES registry as of the last update on 2020-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.