Brian Duffy
NPI 1902785520 · Physician Assistant · Mount Pleasant, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Duffy is a Physician Assistant provider in Mount Pleasant, MI (NPI 1902785520).
Provider details
- NPI number
- 1902785520
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% 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
- 2025-08-28
- Last updated
- 2025-08-28
- Certified
- 2025-08-28
Frequently asked questions
- What is Brian Duffy's NPI number?
- Brian Duffy's National Provider Identifier (NPI) is 1902785520, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Duffy's specialty?
- Brian Duffy is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Brian Duffy located?
- Brian Duffy's practice location on file with NPPES is 4641 E Pickard St Ste a, Mount Pleasant, MI 48858-2189.
- What is Brian Duffy's phone number?
- The practice phone number listed in the NPPES registry for Brian Duffy is (989) 948-4863.
- Does Brian Duffy accept Medicare?
- Brian Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Duffy's NPI active?
- Yes — Brian Duffy's NPI (1902785520) is active in the NPPES registry as of the last update on 2025-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.