Expertise in
5
conditions

Dr. Mark N. Fluchel

Hematology | Oncology
Seattle Children's Hospital
4800 Sand Point Way NE, 
Seattle, WA 
Accepting New Patients
Offers Telehealth
Expertise in
5
conditions
Seattle Children's Hospital
4800 Sand Point Way NE, 
Seattle, WA 

Overview

Mark Fluchel is a Hematologist and an Oncologist practicing medicine in Seattle, Washington.

Dr. Fluchel is highly rated in 5 conditions, according to our data. His clinical expertise encompasses Non-Langerhans-Cell Histiocytosis, Reticulohistiocytoma, Histiocytosis, and Hemophagocytic Lymphohistiocytosis.

He is actively involved in clinical research, co-authoring 46 peer reviewed articles and participating in 8 clinical trials. Dr. Fluchel is currently accepting new patients.

Specialties

Hematology
Oncology

Licenses

Pediatric Hematology-Oncology in UT

Languages Spoken

English

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
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Community Health
  • EPO
  • HMO
Group Health Cooperative
  • HMO
  • POS
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Premera
  • EPO
  • PPO
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • PPO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
View 5 Less Insurance Carriers -

Locations

Seattle Children's Hospital
4800 Sand Point Way NE, Seattle, WA 98105

Additional Areas of Focus

Dr. Fluchel has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Immune Thrombocytopenic Purpura (ITP)

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.

8 Clinical Trials

NMTT- Neuroblastoma Maintenance Therapy Trial Using Difluoromethylornithine (DFMO)
NMTT- Neuroblastoma Maintenance Therapy Trial Using Difluoromethylornithine (DFMO)
Enrollment Status: Active_not_recruiting
Publish Date: September 03, 2026
Intervention Type: Drug
Study Drug: Difluoromethylornithine (DFMO)
Study Phase: Phase 2
LCH-IV, International Collaborative Treatment Protocol for Children and Adolescents With Langerhans Cell Histiocytosis
LCH-IV, International Collaborative Treatment Protocol for Children and Adolescents With Langerhans Cell Histiocytosis
Enrollment Status: Active_not_recruiting
Publish Date: April 09, 2026
Intervention Type: Drug, Procedure, Biological
Study Drugs: Prednisone, Vinblastine, Mercaptopurine, Indomethacin, Methotrexate, Cytosine Arabinoside, 2-chlorodeoxyadenosine, Intravenous immunoglobulin
Study Phase: Phase 2/Phase 3
Molecular-guided Therapy for the Treatment of Patients With Relapsed and Refractory Childhood Cancers
Molecular-guided Therapy for the Treatment of Patients With Relapsed and Refractory Childhood Cancers
Enrollment Status: Completed
Publish Date: November 03, 2025
Intervention Type: Device
Study Phase: Not Applicable
A Phase II Trial of Nifurtimox for Refractory or Relapsed Neuroblastoma or Medulloblastoma.
A Phase II Trial of Nifurtimox for Refractory or Relapsed Neuroblastoma or Medulloblastoma.
Enrollment Status: Completed
Publish Date: August 06, 2024
Intervention Type: Drug
Study Drugs: Nifurtimox, Cyclophosphamide, Topotecan
Study Phase: Phase 2
An Open-label, Single Arm, Multicenter Study to Broaden Access to Emapalumab, an Anti-Interferon Gamma (Anti-IFNγ) Monoclonal Antibody, and to Assess Its Efficacy, Safety, Impact on Quality of Life, and Long-term Outcome in Pediatric Patients With Primary Hemophagocytic Lymphohistiocytosis
An Open-label, Single Arm, Multicenter Study to Broaden Access to Emapalumab, an Anti-Interferon Gamma (Anti-IFNγ) Monoclonal Antibody, and to Assess Its Efficacy, Safety, Impact on Quality of Life, and Long-term Outcome in Pediatric Patients With Primary Hemophagocytic Lymphohistiocytosis
Enrollment Status: Completed
Publish Date: March 12, 2024
Intervention Type: Drug
Study Drug: Emapalumab
Study Phase: Phase 3
A Phase 2/3 Open-label Single Arm Multicentre Study to Assess Safety Tolerability Pharmacokinetics and Efficacy of i.v. Administrations of NI-0501 an Anti-IFNγ mAb in Paediatric Patients With Primary Haemophagocytic Lymphohistiocytosis
A Phase 2/3 Open-label Single Arm Multicentre Study to Assess Safety Tolerability Pharmacokinetics and Efficacy of i.v. Administrations of NI-0501 an Anti-IFNγ mAb in Paediatric Patients With Primary Haemophagocytic Lymphohistiocytosis
Enrollment Status: Completed
Publish Date: February 21, 2023
Intervention Type: Biological
Study Phase: Phase 2/Phase 3
A Multicenter Study for the Long-term Follow-up of HLH Patients Who Received Treatment With NI-0501, an Anti-interferon Gamma Monoclonal Antibody
A Multicenter Study for the Long-term Follow-up of HLH Patients Who Received Treatment With NI-0501, an Anti-interferon Gamma Monoclonal Antibody
Enrollment Status: Completed
Publish Date: June 28, 2022
Intervention Type: Drug
Study Phase: Phase 2/Phase 3
A Phase 1, Open-Label, Dose-Escalation Study of Olaratumab as a Single Agent and in Combination With Doxorubicin, Vincristine/Irinotecan, or High-Dose Ifosfamide in Pediatric Patients With Relapsed or Refractory Solid Tumors
A Phase 1, Open-Label, Dose-Escalation Study of Olaratumab as a Single Agent and in Combination With Doxorubicin, Vincristine/Irinotecan, or High-Dose Ifosfamide in Pediatric Patients With Relapsed or Refractory Solid Tumors
Enrollment Status: Completed
Publish Date: May 20, 2020
Intervention Type: Drug
Study Phase: Phase 1
View 7 Less Clinical Trials

45 Total Publications

Current Approaches Among Medical Providers Treating Pediatric Langerhans Cell Histiocytosis.
Current Approaches Among Medical Providers Treating Pediatric Langerhans Cell Histiocytosis.
Journal: Pediatric blood & cancer
Published: April 28, 2026
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 (0.1 miles away)
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Frequently Asked Questions about Dr. Mark N. Fluchel

How do I make an appointment with Dr. Mark N. Fluchel?

You can book an appointment with Dr. Mark N. Fluchel by calling their office at 206-987-2106. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Mark N. Fluchel a top-rated expert for Non-Langerhans-Cell Histiocytosis?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Mark N. Fluchel is classified as an Advanced expert for Non-Langerhans-Cell Histiocytosis, 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. Mark N. Fluchel specialize in?

While Dr. Mark N. Fluchel is a Hematology, they have specific expertise in Non-Langerhans-Cell Histiocytosis, Reticulohistiocytoma, and Histiocytosis. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Hematology.

Does Dr. Mark N. Fluchel participate in research or clinical trials?

Yes. Dr. Mark N. Fluchel has published 45 articles and abstracts on conditions like Non-Langerhans-Cell Histiocytosis. You can view a list of Dr. Mark N. Fluchel's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Mark N. Fluchel accept my insurance?

Dr. Mark N. Fluchel accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 206-987-2106 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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