Michael J. Polydefkis
Experienced in Clouston Syndrome

Dr. Michael J. Polydefkis

Neurology
Johns Hopkins Medicine
Johns Hopkins Bayview Medical Center
Baltimore, MD 
Offers Telehealth

Experienced in Clouston Syndrome
Johns Hopkins Medicine
Johns Hopkins Bayview Medical Center
Baltimore, MD 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Dr. Michael Polydefkis focuses on neuromuscular diseases, particularly peripheral nerve diseases. He has a special interest in diabetic and HIV-associated peripheral neuropathy. His expertise includes nerve conduction studies, electromyography and nerve, skin and muscle biopsy reading. Dr. Michael Polydefkis received his medical degree from The Johns Hopkins University School of Medicine. He then became a Howard Hughes Medical Institute research fellow before returning to Johns Hopkins to complete an internship and residency in internal medicine, residency in neurology and a fellowship in neuromuscular diseases.

Dr. Polydefkis is rated as an Experienced provider by MediFind in the treatment of Clouston Syndrome. His top areas of expertise are Transthyretin Amyloidosis, Familial Transthyretin Amyloidosis, Primary Amyloidosis, and Peripheral Neuropathy.

His clinical research consists of co-authoring 95 peer reviewed articles and participating in 1 clinical trial. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 2 articles in the study of Clouston Syndrome.

Residency
Johns Hopkins University School of Medicine, Neurology, 1998
Specialties
Neurology
Licenses
Psychiatry & Neurology in MD
Fellowships
Johns Hopkins University School of Medicine, Neurology, 2000
Hospital Affiliations
The Johns Hopkins Hospital
Johns Hopkins Bayview Medical Center
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
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
CareFirst
  • HMO
  • POS
  • PPO
Change Healthcare
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Cigna
  • EPO
  • HMO
  • PPO
First Health
  • INSURANCE PLAN
  • MEDICARE PDP
  • PPO
Geisinger
  • HMO
  • POS
  • PPO
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
Highmark
  • EPO
  • HMO
  • PPO
Horizon Healthcare
  • EPO
  • POS
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Johns Hopkins Healthcare
  • HMO
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE-MEDICAID PLAN
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • 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 11 Less Insurance Carriers -

Locations

Johns Hopkins Bayview Medical Center
Suite 1201, Baltimore, MD 21224
Call: 410-550-5624
Other Locations
Johns Hopkins Outpatient Center
601 North Caroline Street, Floor 5, Baltimore, MD 21287
Call: 410-955-9441

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.


1 Clinical Trials

An Open-Label Trial of Alemtuzumab in Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIPD)
An Open-Label Trial of Alemtuzumab in Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIPD)
Enrollment Status: Withdrawn
Publish Date: May 18, 2017
Intervention Type: Drug
Study Phase: Phase 4

95 Total Publications

Neuropathy impairment and nutritional status with eplontersen in patients with hereditary transthyretin-mediated amyloidosis.
Neuropathy impairment and nutritional status with eplontersen in patients with hereditary transthyretin-mediated amyloidosis.
Journal: Amyloid : the international journal of experimental and clinical investigation : the official journal of the International Society of Amyloidosis
Published: October 28, 2025
View All 95 Publications
Similar Doctors
Jaishri Blakeley
Advanced in Clouston Syndrome
Dr. Jaishri Blakeley
Neurology
Advanced in Clouston Syndrome
Dr. Jaishri Blakeley
Neurology

Johns Hopkins Outpatient Center

601 North Caroline Street, Floor 5, Floor 5, 
Baltimore, MD 
 (3.5 miles away)
410-955-9441
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Dr. Jaishri Blakeley is the Marjorie Bloomberg Tiven Professor of Neurofibromatosis in Neurology, Oncology, and Neurosurgery at Johns Hopkins School of Medicine, director of the Johns Hopkins Comprehensive Neurofibromatosis Center and director of the Neurofibromatosis Therapeutic Acceleration Program (NTAP). She is an active clinician-scientist specializing in the care of people with NF1, NF2, LZTR1, SMARC1 schwannomatoses, and primary brain tumors. Her research expertise in the development of clinical trials for nervous system tumors and specifically, early clinical-translational studies including tumor pharmacokinetic and pharmacodynamic investigations, imaging biomarkers for rare nervous system tumors, and incorporation of patient-focused, functional endpoints into efficacy studies. She has been the national or international leader of 7 clinical trials focused on therapies for glioblastoma, NF1 and NF2. In 2012 she cofounded the NTAP to dramatically shift the landscape of NF1 via necessary, efficient, and expert discovery, translational and clinical research. NTAP focuses on therapeutics, fosters collaboration, facilitates open and timely sharing of results, and streamlines the research process to accelerate therapies for plexiform and cutaneous neurofibromas. Through NTAP, Dr. Blakeley has supported and collaborated with more than 80 laboratories and research teams across the globe enabling meaningful therapeutic development for NF1-associated neoplasms and supporting the development of an exceptional community of clinician scientists focused on NF1 via the Francis S. Collins Scholars Program in Neurofibromatosis Clinical and Translational Research. Her research and programmatic efforts are all in the service of improving outcomes for the patients with NF1, NF2, schwannomatosis, and primary brain cancer for whom she is honored to provide care. Dr. Blakeley is rated as an Elite provider by MediFind in the treatment of Clouston Syndrome. Her top areas of expertise are Neurofibromatosis, Schwannomatosis, Neurofibromatosis Type 2 (NF2), Neurofibromatosis Type 1 (NF1), and Laminectomy.

Experienced in Clouston Syndrome
Dr. Roger Packer
Neurology | Pediatrics
Experienced in Clouston Syndrome
Dr. Roger Packer
Neurology | Pediatrics
111 Michigan Ave Nw, 
Washington, DC 
 (35.5 miles away)
202-884-2610
Languages Spoken:
English
See accepted insurances

Roger Packer is a Neurologist and a Pediatrics provider in Washington, Washington, D.c.. Dr. Packer is rated as an Elite provider by MediFind in the treatment of Clouston Syndrome. His top areas of expertise are Brain Tumor, Diffuse Midline Glioma H3 K27M-Mutant, Medulloblastoma, and Gliomatosis Cerebri.

Experienced in Clouston Syndrome
Dr. Francois Boller
Neurology
Experienced in Clouston Syndrome
Dr. Francois Boller
Neurology
4301 Military Rd Nw, 
Washington, DC 
 (35.4 miles away)
202-352-7274
Languages Spoken:
English

Francois Boller is a Neurologist in Washington, Washington, D.c.. Dr. Boller is rated as an Experienced provider by MediFind in the treatment of Clouston Syndrome. His top areas of expertise are Charles Bonnet Syndrome, Phantom Limb Pain, Neurosyphilis, and Complex Regional Pain Syndrome.

VIEW MORE CLOUSTON SYNDROME DOCTORS

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

Find Dr. Polydefkis's expertise for a condition
ConditionClose
  • Elite
  • Familial Transthyretin Amyloidosis
    Dr. Polydefkis is
    Elite
    . Learn about Familial Transthyretin Amyloidosis.
    See more Familial Transthyretin Amyloidosis experts
  • Peripheral Neuropathy
    Dr. Polydefkis is
    Elite
    . Learn about Peripheral Neuropathy.
    See more Peripheral Neuropathy experts
  • Primary Amyloidosis
    Dr. Polydefkis is
    Elite
    . Learn about Primary Amyloidosis.
    See more Primary Amyloidosis experts
  • Transthyretin Amyloidosis
    Dr. Polydefkis is
    Elite
    . Learn about Transthyretin Amyloidosis.
    See more Transthyretin Amyloidosis experts
  • Distinguished
  • Cardiac Amyloidosis
    Dr. Polydefkis is
    Distinguished
    . Learn about Cardiac Amyloidosis.
    See more Cardiac Amyloidosis experts
  • Neuralgia
    Dr. Polydefkis is
    Distinguished
    . Learn about Neuralgia.
    See more Neuralgia experts
  • Transthyretin Amyloid Cardiomyopathy
    Dr. Polydefkis is
    Distinguished
    . Learn about Transthyretin Amyloid Cardiomyopathy.
    See more Transthyretin Amyloid Cardiomyopathy experts
  • Advanced
  • Andermann Syndrome
    Dr. Polydefkis is
    Advanced
    . Learn about Andermann Syndrome.
    See more Andermann Syndrome experts
  • Charcot-Marie-Tooth Disease
    Dr. Polydefkis is
    Advanced
    . Learn about Charcot-Marie-Tooth Disease.
    See more Charcot-Marie-Tooth Disease experts
  • Chronic Inflammatory Demyelinating Polyneuropathy
    Dr. Polydefkis is
    Advanced
    . Learn about Chronic Inflammatory Demyelinating Polyneuropathy.
    See more Chronic Inflammatory Demyelinating Polyneuropathy experts
  • Diabetic Neuropathy
    Dr. Polydefkis is
    Advanced
    . Learn about Diabetic Neuropathy.
    See more Diabetic Neuropathy experts
  • Familial Dysautonomia
    Dr. Polydefkis is
    Advanced
    . Learn about Familial Dysautonomia.
    See more Familial Dysautonomia experts
  • Guillain-Barre Syndrome
    Dr. Polydefkis is
    Advanced
    . Learn about Guillain-Barre Syndrome.
    See more Guillain-Barre Syndrome experts
View All 10 Advanced Conditions
  • Experienced
  • Alternating Hemiplegia of Childhood
    Dr. Polydefkis is
    Experienced
    . Learn about Alternating Hemiplegia of Childhood.
    See more Alternating Hemiplegia of Childhood experts
  • Aplasia Cutis Congenita
    Dr. Polydefkis is
    Experienced
    . Learn about Aplasia Cutis Congenita.
    See more Aplasia Cutis Congenita experts
  • Autonomic Neuropathy
    Dr. Polydefkis is
    Experienced
    . Learn about Autonomic Neuropathy.
    See more Autonomic Neuropathy experts
  • Chronic Pain
    Dr. Polydefkis is
    Experienced
    . Learn about Chronic Pain.
    See more Chronic Pain experts
  • Chronic Polyradiculoneuritis
    Dr. Polydefkis is
    Experienced
    . Learn about Chronic Polyradiculoneuritis.
    See more Chronic Polyradiculoneuritis experts
  • Clouston Syndrome
    Dr. Polydefkis is
    Experienced
    . Learn about Clouston Syndrome.
    See more Clouston Syndrome experts
View All 26 Experienced Conditions
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