Michael Duffy, ED.D., L.L.P.
NPI 1356367049 · Clinical Psychologist · Fort Gratiot, MI
Michael Duffy, ED.D., L.L.P. is a Clinical Psychologist provider in Fort Gratiot, MI (NPI 1356367049).
Provider details
- NPI number
- 1356367049
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- ED.D., L.L.P.
- Sex
- Male
- Sole proprietor
- No
- License
- 6301002476 (MI)
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
- 2006-07-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Duffy's NPI number?
- Michael Duffy's National Provider Identifier (NPI) is 1356367049, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Duffy's specialty?
- Michael Duffy is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Michael Duffy located?
- Michael Duffy's practice location on file with NPPES is 1501 Krafft Rd, Fort Gratiot, MI 48059-3565.
- What is Michael Duffy's phone number?
- The practice phone number listed in the NPPES registry for Michael Duffy is (810) 985-5125.
- Is Michael Duffy's NPI active?
- Yes — Michael Duffy's NPI (1356367049) 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.