Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Patrick Andrew Twomey

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1972537215

Patrick Andrew Twomey practises Pathology in Duluth, Minnesota. Graduated from University of Minnesota Medical School in 1991, 35 years ago. Practices with The Duluth Clinic Ltd, a 1,127-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
35
Trained at
University of Minnesota Medical School
Licensed in
MN
In the registry since
2006
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Practice location Address checks out

400 E 3rd St
Duluth, MN 55805-1951 Not confirmed with CMS for 15 years — call before visiting
Phone: (218) 786-8364
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 40433 (MN)

Record details

NPI number1972537215
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJuly 11, 2006
Last updated in NPPESMay 19, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1991 (35 years in practice)
Group practice The Duluth Clinic Ltd — 1127 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients896
Services billed 1,999 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at The Duluth Clinic Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1127 clinicians in the practice; 12 are shown here.

Other providers in Duluth