0 reviews
Summary
Dr. John Maciejewski specializes in hematology and oncology, with additional training in internal medicine. He earned his medical degree from Chicago Medical School at Rosalind Franklin University of Medicine and Sciences and brings 25 years of clinical experience to his practice. Dr. Maciejewski is fluent in Spanish and Chinese, allowing him to serve a diverse patient population.
Dr. Maciejewski is affiliated with Rush University Medical Center and practices at the University of Michigan Medical Center in Ann Arbor, Michigan. He focuses on treating blood disorders and cancers, including multiple myeloma and both acute and chronic forms of myeloid leukemia. His expertise includes performing comprehensive blood work such as complete blood counts and specialized immune system testing to help diagnose and monitor various blood conditions.
Dr. Maciejewski is affiliated with Rush University Medical Center and practices at the University of Michigan Medical Center in Ann Arbor, Michigan. He focuses on treating blood disorders and cancers, including multiple myeloma and both acute and chronic forms of myeloid leukemia. His expertise includes performing comprehensive blood work such as complete blood counts and specialized immune system testing to help diagnose and monitor various blood conditions.
Overview based on verified provider data
Quick Facts
- 25 years of experience
- 67 insurance plans accepted
- speaks Spanish, Chinese
- Chicago Medical School At Rosalind Franklin University-Medicine & Sciences
- 3 specialties
- 14 areas of expertise
- 3 board certifications
- 1 hospital affiliation
- 1 office location
- Male
Office Location
University Of Michigan Medical Center
1500 E Medical Center DrAnn Arbor, MI 48109 Tel: (734) 936-4000
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. John Joseph Maciejewski, MD | Dr. Ahmed Rehan, MD | Dr. Miriam Atira Harewood-Makola, MD | Dr. William Edward Barrie, MD |
| Hematology | Nephrology | Hospital Medicine | Emergency Medicine |
| Accepts New Patients | Accepts New Patients | ||
| 25 Years of Experience | 50 Years of Experience | 13 Years of Experience | 39 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks Spanish, Chinese | Speaks English | Speaks English | Speaks English |
| Ann Arbor , MI | Ypsilanti , MI | Ann Arbor , MI | Ann Arbor , MI |
| Med School: Chicago Medical School At Rosalind Franklin University-Medicine & Sciences | Med School: King Edward Medical University | Med School: Wright State University Boonshoft School Of Medicine | Med School: Wayne State University School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John Joseph Maciejewski
Medical Specialties
Dr. John Joseph Maciejewski has the following 3 specialties
Specialty Expertise
Dr. John Joseph Maciejewski has the following 14 areas of expertise
Certifications, License, & Education
25 Years Experience
MEDICAL LICENSE
Medical Doctor, Michigan, 2028, Active
EDUCATION & TRAINING
Medical School
Chicago Medical School At Rosalind Franklin University-Medicine & SciencesGraduated in 2001
Similar doctors
Frequently Asked Questions
- How can I make an appointment with Dr. John Maciejewski?
- You can find contact information for Dr. John Maciejewski here on Vitals.
- Is Dr. John Maciejewski accepting new patients?
- Dr. John Maciejewski has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. John Maciejewski accept virtual/telehealth appointments?
- Dr. John Maciejewski has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Does Dr. John Maciejewski accept my insurance?
- You can see the insurance plans that Dr. John Maciejewski accepts on their Vitals profile.
- Which hospitals is Dr. John Maciejewski affiliated with?
- Dr. John Maciejewski is affiliated with Rush University Medical Center.
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.







