William Hailey, APCC
NPI 1386125268 · Counselor · Los Alamitos, CA
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Hailey, APCC is a Counselor provider in Los Alamitos, CA (NPI 1386125268).
Provider details
- NPI number
- 1386125268
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Credential
- APCC
- Sex
- Male
- Sole proprietor
- No
- License
- APCC7147 (CA)
Specialties & taxonomies
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
7 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2018-08-28
- Last updated
- 2023-11-17
- Certified
- 2023-11-17
Frequently asked questions
- What is William Hailey's NPI number?
- William Hailey's National Provider Identifier (NPI) is 1386125268, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Hailey's specialty?
- William Hailey is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is William Hailey located?
- William Hailey's practice location on file with NPPES is 4281 Katella Ave Ste 117, Los Alamitos, CA 90720-3590.
- What is William Hailey's phone number?
- The practice phone number listed in the NPPES registry for William Hailey is (562) 596-0050.
- Does William Hailey accept Medicare?
- William Hailey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Hailey's NPI active?
- Yes — William Hailey's NPI (1386125268) is active in the NPPES registry as of the last update on 2023-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.