What is Joseph Duffy's NPI number?

Joseph Duffy's National Provider Identifier (NPI) is 1770563769, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Joseph Duffy's specialty?

Joseph Duffy is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).

Where is Joseph Duffy located?

Joseph Duffy's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905-0001.

What is Joseph Duffy's phone number?

The practice phone number listed in the NPPES registry for Joseph Duffy is (507) 284-2511.

Is Joseph Duffy's NPI active?

Yes — Joseph Duffy's NPI (1770563769) is active in the NPPES registry as of the last update on 2008-03-05.

IndividualActive

Joseph Duffy, M.D.

NPI 1770563769 · Rheumatology Physician · Rochester, MN

Joseph Duffy, M.D. is a Rheumatology Physician provider in Rochester, MN (NPI 1770563769).

Provider details

NPI number: 1770563769
Entity type: Individual
Primary specialty: Rheumatology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 21876 (MN)

Specialties & taxonomies

Rheumatology PhysicianPrimary207RR0500XLicense 21876 (MN)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

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
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

200 1st St Sw

Rochester, MN 55905-0001

Phone: (507) 284-2511

Approximate (ZIP-level) locationGet directions

More MN providers

Mailing address