Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Keith Allen Dufendach, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1821525429

Dr. Keith Allen Dufendach, MD is a Thoracic Surgery in Muskegon, Michigan. Graduated from Perelman School of Med at the University of Pennsylvania in 2017, 9 years ago. Practices with Mercy Health Partners Sub-Specialty Services, a 32-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
9
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
MI
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1560 E Sherman Blvd Ste 309
Muskegon, MI 49444-1850
Phone: (231) 672-8643
Fax: (231) 672-8651
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 310 Lafayette Ave Se Ste 300, Grand Rapids, MI 49503-4693 — (616) 685-3450
  • 3600 Forbes Ave Ste 140, Pittsburgh, PA 15213-3410 — (412) 647-6340

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 4301513912 (MI)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1821525429
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 15, 2017
Last updated in NPPESJune 3, 2025
Certification dateJune 3, 2025

Medicare enrollment

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

Medicare specialtyTHORACIC SURGERY
Also practisesCARDIAC SURGERY
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 2017 (9 years in practice)
Group practice Mercy Health Partners Sub-Specialty Services — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Muskegon