IndividualActive
John Brennan, PSYD
NPI 1538595244 · Clinical Psychologist · Wyandotte, MI
John Brennan, PSYD is a Clinical Psychologist provider in Wyandotte, MI (NPI 1538595244).
Provider details
- NPI number
- 1538595244
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6301014907 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(81/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
2955 Biddle Ave Ste 200
Wyandotte, MI 48192-5231
Phone: (248) 470-6225
Fax: (734) 324-1566
Street-level locationGet directions
Mailing address
2955 Biddle Ave Ste 200
Wyandotte, MI 48192-5231
Additional practice locations (1)
- 105 Breakwater NHendersonville, TN 37075-5683Phone: (248) 470-6225
Registry dates
- Enumerated
- 2013-09-25
- Last updated
- 2021-04-08
- Certified
- 2021-02-23
Frequently asked questions
- What is John Brennan's NPI number?
- John Brennan's National Provider Identifier (NPI) is 1538595244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Brennan's specialty?
- John Brennan is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is John Brennan located?
- John Brennan's practice location on file with NPPES is 2955 Biddle Ave Ste 200, Wyandotte, MI 48192-5231.
- What is John Brennan's phone number?
- The practice phone number listed in the NPPES registry for John Brennan is (248) 470-6225.
- Is John Brennan's NPI active?
- Yes — John Brennan's NPI (1538595244) is active in the NPPES registry as of the last update on 2021-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.