> > > > Dr. Joseph Merchant, MD
Dr. Joseph James Merchant MD is a male Internist, has 17 years of experience and practices in Internal Medicine, Hematology, and Medical Oncology.
Video profile
Dr. Joseph Merchant has 5 office locations.
McFarland Clinic Pc
312 E Main St
Ste 1000
Marshalltown, IA 50158

Phone Number
Locations and availability (5)
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Specialties & Research

Dr. Joseph Merchant, MD is board certified in Internal Medicine, Hematology, and Medical Oncology.

  • He has special expertise in 6 areas:
  • Anemia
  • Chronic B-Cell Lymphocytic Leukemia
  • Leukemia
  • Lymphoma
  • Myelodysplastic Syndromes
  • Myeloproliferative Disorders

Education & Awards

Dr. Merchant graduated from University of Iowa, Iowa City.


Dr. Merchant has 9 hospital affiliations:

  • Boone County Hospital 
  • Mary Greeley Medical Center 

Accepted Insurance Plans

Dr. Merchant accepts these health insurances in at least one office:

  • Health Alliance Medical Plans - 1 plan
  • Cigna - 2 plans
  • Aetna - 1 plan
  • Humana - 2 plans
  • HealthPlus of Michigan - 7 plans
  • Great-West Healthcare - 1 plan
  • Iowa Medicaid - 1 plan
  • United Healthcare - 15 plans


  • Spanish

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Additional Information
Where does Dr. Joseph J. Merchant practice?
Dr. Joseph Merchant practices Internal Medicine, Hematology, and Medical Oncology near Marshalltown, IA.
Additional practice locations include: Ames, IA and Boone, IA.
See Marshalltown Internists, Marshalltown Hematologists, and Marshalltown Oncologists.