1. Home
  2. Directory
  3. Minnesota
  4. Rochester
  5. Speech Language Pathologist
  6. NPI Profile

JOSEPH R DUFFY SLP
NPI 1821226515
Speech-Language Pathologist in Rochester, MN

Active since July 01, 2009
200 1ST ST SW, ROCHESTER, MN 55905(507) 284-2511 Get Directions Write a Review

NPPES record last updated: February 25, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 27, 2020, May 1, 2019, Mar 12, 2018 (3 updates tracked since 2018).

About Joseph R Duffy Slp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOSEPH R DUFFY SLP (NPI 1821226515) is an individual speech-language pathologist provider in Rochester, Minnesota, licensed in Minnesota (5039) and active in the NPI registry since July 2009.

NPPES Registry Identity

NPI1821226515
Entity TypeIndividualMale
Primary Taxonomy235Z00000X
Provider Legal NameJOSEPH R DUFFYCredential: SLP
Location Address200 1ST ST SWRochester, MN 55905-0001
Mailing Address200 1st St SwRochester, MN 55905-0001 · (507) 284-2511
Phone(507) 284-2511
Sole ProprietorNo
Enumeration DateJuly 1, 2009
Last NPPES UpdateFebruary 25, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 25, 2026
✔ NPI 1821226515 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in MN · 5039
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
200 1ST ST SW, Rochester, MN 55905
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

EMILY LEASURE MD
Internal Medicine
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
NATHANAEL BAILEY
Pathology (Clinical Pathology/Laboratory Medicine)
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
NICOLE S NIPPER NP
Nurse Practitioner
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
BRANDI D'SOUZA NP
Nurse Practitioner
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
DR. JODI M. MOORE-WEISS OD
Optometrist
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
JENNIFER L KERKVLIET MA
Psychologist
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
EMMANUEL J LUJERO CRNA
Nurse Anesthetist, Certified Registered
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
JUAN PABLO BRITO CAMPANA M.D
Internal Medicine (Endocrinology, Diabetes & Metabolism)
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joseph Duffy's NPI number?

The NPI number for Joseph Duffy is 1821226515. It was assigned to this individual provider in the NPPES registry on July 1, 2009.

Where is Joseph Duffy located?

Joseph Duffy practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.

What is Joseph Duffy's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

What insurance does Joseph Duffy accept?

Health plans from Medica list Joseph Duffy as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Joseph Duffy was last updated on February 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.