Jaroslaw P. Maciejewski
Expertise in
25
conditions

Dr. Jaroslaw P. Maciejewski

Hematology
10201 Carnegie Avenue, 
Cleveland, OH 
Accepting New Patients
Offers Telehealth
Referral may be required
Before you request
Expertise in
25
conditions
10201 Carnegie Avenue, 
Cleveland, OH 

Overview

Jaroslaw Maciejewski is a Hematologist practicing medicine in Cleveland, Ohio.

Dr. Maciejewski is highly rated in 25 conditions, according to our data. His clinical expertise encompasses Paroxysmal Nocturnal Hemoglobinuria (PNH), Aplastic Anemia, Paroxysmal Cold Hemoglobinuria, Bone Marrow Transplant, and Splenectomy.

Dr. Maciejewski is board certified in American Board Of Internal Medicine, 2001. He is actively involved in clinical research, co-authoring 385 peer reviewed articles and participating in 2 clinical trials. Dr. Maciejewski is currently accepting new patients.

Specialties

Hematology

Licenses

Internal Medicine in OH

Board Certifications

American Board Of Internal Medicine, 2001

Hospital Affiliations

Cleveland Clinic

Languages Spoken

English
German
Polish

Gender

Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Ambetter
  • EPO
  • HMO
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
AultCare
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
CareFirst
  • HMO
  • POS
  • PPO
CareSource
  • HMO
Cigna
  • EPO
  • HMO
  • PPO
CommuniCare Advantage
  • MEDICARE SNP
Devoted Health
  • MEDICARE MAPD
  • OTHER MEDICARE
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Kaiser Permanente
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER MEDICARE
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medical Mutual
  • HMO
  • PPO
Oscar
  • EPO
  • HMO
  • PPO
Paramount
  • EPO
  • HMO
  • INDEMNITY
  • PPO
Primetime Health Plan
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER MEDICARE PART D
Provider Partners Health Plan
  • MEDICARE SNP
SummaCare
  • HMO
  • PPO
The Health Plan
  • HMO
  • MANAGED MEDICAID PLAN
  • OTHER MEDICARE PART D
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Univera Healthcare
  • INSURANCE PLAN
  • MEDICARE MAPD
UPMC
  • EPO
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 20 Less Insurance Carriers -

Locations

Cleveland Clinic Main Campus
10201 Carnegie Avenue, Cleveland, OH 44106
Other Locations
Cleveland Clinic Main Campus
9500 Euclid Avenue, Cleveland, OH 44195

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

2 Clinical Trials

A Sequential Two-Stage Dose Escalation Study to Evaluate the Safety and Efficacy of Ruxolitinib for the Treatment of Chronic Myelomonocytic Leukemia (CMML): A Phase 2 Expansion
A Sequential Two-Stage Dose Escalation Study to Evaluate the Safety and Efficacy of Ruxolitinib for the Treatment of Chronic Myelomonocytic Leukemia (CMML): A Phase 2 Expansion
Enrollment Status: Active_not_recruiting
Publish Date: July 01, 2026
Intervention Type: Drug
Study Drug: Ruxolitinib
Study Phase: Phase 2
A Phase 2 Open-label Study of ACH-0144471 in Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH) Who Have an Inadequate Response to Eculizumab Monotherapy
A Phase 2 Open-label Study of ACH-0144471 in Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH) Who Have an Inadequate Response to Eculizumab Monotherapy
Enrollment Status: Completed
Publish Date: December 12, 2023
Intervention Type: Drug
Study Drugs: Danicopan, Eculizumab
Study Phase: Phase 2
View 1 Less Clinical Trial

385 Total Publications

FLT3-ITD signals for CEBPA and p53 proteolysis by the ubiquitin-proteosome pathway.
FLT3-ITD signals for CEBPA and p53 proteolysis by the ubiquitin-proteosome pathway.
Journal: Research square
Published: August 20, 2026
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Cleveland Clinic Main Campus

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English
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Expertise in
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Expertise in
38
conditions
Referral may be required
Before you request

Cleveland Clinic Main Campus

10201 Carnegie Avenue, 
Cleveland, OH 
 (0.1 miles away)
866-223-8100
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

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Frequently Asked Questions about Dr. Jaroslaw P. Maciejewski

How do I make an appointment with Dr. Jaroslaw P. Maciejewski?

You can book an appointment with Dr. Jaroslaw P. Maciejewski by calling their office at 866-223-8100. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Jaroslaw P. Maciejewski a top-rated expert for Paroxysmal Nocturnal Hemoglobinuria (PNH)?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Jaroslaw P. Maciejewski is classified as an Elite expert for Paroxysmal Nocturnal Hemoglobinuria (PNH), meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Jaroslaw P. Maciejewski specialize in?

While Dr. Jaroslaw P. Maciejewski is a Hematology, they have specific expertise in Paroxysmal Nocturnal Hemoglobinuria (PNH), Aplastic Anemia, and Paroxysmal Cold Hemoglobinuria. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Hematology.

Does Dr. Jaroslaw P. Maciejewski participate in research or clinical trials?

Yes. Dr. Jaroslaw P. Maciejewski has published 385 articles and abstracts on conditions like Paroxysmal Nocturnal Hemoglobinuria (PNH). You can view a list of Dr. Jaroslaw P. Maciejewski's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Jaroslaw P. Maciejewski accept my insurance?

Dr. Jaroslaw P. Maciejewski accepts most major insurance plans, including Aetna and Ambetter. We recommend calling the office directly at 866-223-8100 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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