William Obrien, PH.D.
NPI 1023181633 · Health Service Psychologist · Bowling Green, OH
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Obrien, PH.D. is a Health Service Psychologist provider in Bowling Green, OH (NPI 1023181633).
Provider details
- NPI number
- 1023181633
- Entity type
- Individual
- Primary specialty
- Health Service PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4553 (OH)
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
19 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
- 2006-11-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Obrien's NPI number?
- William Obrien's National Provider Identifier (NPI) is 1023181633, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Obrien's specialty?
- William Obrien is listed in the NPPES registry with a primary specialty of Health Service Psychologist (Behavioral Health & Social Service Providers).
- Where is William Obrien located?
- William Obrien's practice location on file with NPPES is Of Psychology, Bowling Green, OH 43403-0001.
- What is William Obrien's phone number?
- The practice phone number listed in the NPPES registry for William Obrien is (419) 372-2973.
- Does William Obrien accept Medicare?
- William Obrien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Obrien's NPI active?
- Yes — William Obrien's NPI (1023181633) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.