John O'Leary, PHD
NPI 1942292354 · Clinical Psychologist · Royal Oak, MI
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John O'Leary, PHD is a Clinical Psychologist provider in Royal Oak, MI (NPI 1942292354).
Provider details
- NPI number
- 1942292354
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6301003315 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1949 W 12 Mile Rd Ste 100Berkley, MI 48072-1868Phone: (248) 551-1756Fax: (248) 551-9566
Registry dates
- Enumerated
- 2005-08-22
- Last updated
- 2020-10-20
- Certified
- 2020-10-20
Frequently asked questions
- What is John O'Leary's NPI number?
- John O'Leary's National Provider Identifier (NPI) is 1942292354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John O'Leary's specialty?
- John O'Leary is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is John O'Leary located?
- John O'Leary's practice location on file with NPPES is 25600 Woodward Ave, Royal Oak, MI 48067-0943.
- What is John O'Leary's phone number?
- The practice phone number listed in the NPPES registry for John O'Leary is (248) 542-8421.
- Does John O'Leary accept Medicare?
- John O'Leary is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John O'Leary's NPI active?
- Yes — John O'Leary's NPI (1942292354) is active in the NPPES registry as of the last update on 2020-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.