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Jack Greenwood, MD

Dr. Greenwood is a neurologist in the Port Jefferson area.
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Conditions treated

Tap to see related services for each condition and more details about our calculations.

Top 25%
16k doctors
Top 15%
16k doctors
Top 5%
7.8k doctors
Dr. Greenwood saw more peripheral neuropathy patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
16k doctors
Top 15%
16k doctors
Top 5%
7.9k doctors
Dr. Greenwood saw more neuropathy patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
11k doctors
Top 15%
11k doctors
Top 5%
5.3k doctors
Dr. Greenwood saw more attention deficit hyperactivity disorder (ADHD) patients than 95% of similar doctors nationwide in 2014–2019. Learn more.
Top 25%
414 doctors
Top 15%
414 doctors
Top 5%
207 doctors
Dr. Greenwood saw more labyrinthitis patients than 85% of similar doctors nationwide in 2014–2019. Learn more.
Top 25%
6.0k doctors
Top 15%
6.0k doctors
Top 5%
3.0k doctors
Dr. Greenwood saw more carpal tunnel syndrome patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
9.8k doctors
Top 15%
9.8k doctors
Top 5%
4.9k doctors
Dr. Greenwood saw more pinched nerve patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
677 doctors
Top 15%
678 doctors
Top 5%
338 doctors
Dr. Greenwood saw Lyme disease patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
12k doctors
Top 15%
12k doctors
Top 5%
6.0k doctors
Dr. Greenwood saw more migraine patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
23k doctors
Top 15%
23k doctors
Top 5%
12k doctors
Dr. Greenwood saw more back problems patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
22k doctors
Top 15%
22k doctors
Top 5%
11k doctors
Dr. Greenwood saw more spine condition patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
2.2k doctors
Top 15%
2.2k doctors
Top 5%
1.1k doctors
Dr. Greenwood saw more diabetic neuropathy patients than 75% of similar doctors nationwide in 2014–2019. Learn more.
Top 25%
7.4k doctors
Top 15%
7.4k doctors
Top 5%
3.7k doctors
Dr. Greenwood saw sciatica patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
2.1k doctors
Top 15%
2.1k doctors
Top 5%
1.1k doctors
Dr. Greenwood saw more multiple sclerosis (MS) patients than 85% of similar doctors nationwide in 2014–2019. Learn more.
Top 25%
2.6k doctors
Top 15%
2.6k doctors
Top 5%
1.3k doctors
Dr. Greenwood saw concussion patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
8.1k doctors
Top 15%
8.1k doctors
Top 5%
4.1k doctors
Dr. Greenwood saw more epilepsy patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
1.9k doctors
Top 15%
1.9k doctors
Top 5%
968 doctors
Dr. Greenwood saw more chronic regional pain syndrome (CRPS) patients than 75% of similar doctors nationwide in 2014–2019. Learn more.
Top 25%
9.9k doctors
Top 15%
9.9k doctors
Top 5%
5.0k doctors
Dr. Greenwood saw more abnormal gait patients than 85% of similar doctors nationwide in 2014–2019. Learn more.
Top 25%
16k doctors
Top 15%
16k doctors
Top 5%
8.2k doctors
Dr. Greenwood saw more cerebrovascular disease patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

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Top 25%
19k doctors
Top 15%
19k doctors
Top 5%
9.3k doctors
Dr. Greenwood saw more headaches patients than 85% of similar doctors nationwide in 2014–2019. Learn more.
Top 25%
36k doctors
Top 15%
36k doctors
Top 5%
18k doctors
Dr. Greenwood saw vascular disease patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
5.1k doctors
Top 15%
5.1k doctors
Top 5%
2.5k doctors
Dr. Greenwood saw herniated disc patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
537 doctors
Top 15%
537 doctors
Top 5%
268 doctors
Dr. Greenwood saw Bell's palsy patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
40k doctors
Top 15%
40k doctors
Top 5%
20k doctors
Dr. Greenwood saw pain patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
15k doctors
Top 15%
15k doctors
Top 5%
7.4k doctors
Dr. Greenwood saw more stroke patients than 75% of similar doctors nationwide in 2014–2019. Learn more.
Top 25%
22k doctors
Top 15%
22k doctors
Top 5%
11k doctors
Dr. Greenwood saw back pain patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
16k doctors
Top 15%
16k doctors
Top 5%
8.2k doctors
Dr. Greenwood saw chronic pain patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
38k doctors
Top 15%
38k doctors
Top 5%
19k doctors
Dr. Greenwood saw cardiovascular disease (CVD) patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
3.3k doctors
Top 15%
3.3k doctors
Top 5%
1.7k doctors
Dr. Greenwood saw more Parkinson's disease patients than 75% of similar doctors nationwide in 2014–2019. Learn more.
Top 25%
4.9k doctors
Top 15%
4.9k doctors
Top 5%
2.4k doctors
Dr. Greenwood saw transient ischemic attack (TIA) patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
7.0k doctors
Top 15%
7.0k doctors
Top 5%
3.5k doctors
Dr. Greenwood saw degenerative disc disease (DDD) patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Locations

Dr. Greenwood sees patients and can be reached at the following locations.

Port Jefferson MRI-Mather/St Charles Health Alliance
120 N Country Rd
Port Jefferson, NY 11777
18 miles away
balance Diagnostics USA
395 Pearsall Ave
Cedarhurst, NY 11516
46 miles away

Reviews

Credentials
  • New York University School of Medicine, NY
    MEDICAL EDUCATION, 1974

Specializations

    1. Allopathic & Osteopathic Physicians
    2. Psychiatry & Neurology
    3. Neurology
    1. Allopathic & Osteopathic Physicians
    2. Psychiatry & Neurology
    3. Neurology With Special Qualifications In Child Neurology
    1. Allopathic & Osteopathic Physicians
    2. Psychiatry & Neurology
    3. Vascular Neurology

Insurance accepted

Always check coverage with your doctor’s office.

  • Aetna
  • Affinity Health Plan
  • Anthem
  • Arkansas Blue Cross and Blue Shield
  • Blue Cross Blue Shield of Arizona
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • Blue Cross and Blue Shield of Alabama
  • Blue Cross and Blue Shield of Florida
  • Blue Cross and Blue Shield of Illinois
  • Blue Cross and Blue Shield of Kansas
  • Blue Cross and Blue Shield of Kansas City
  • Blue Cross and Blue Shield of Louisiana
  • Blue Cross and Blue Shield of Minnesota
  • Blue Cross and Blue Shield of Mississippi
  • Blue Cross and Blue Shield of Montana
  • Blue Cross and Blue Shield of Nebraska
  • Blue Cross and Blue Shield of New Mexico
  • Blue Cross and Blue Shield of North Dakota
  • Blue Cross and Blue Shield of Oklahoma
  • Blue Cross and Blue Shield of Rhode Island
  • Blue Cross and Blue Shield of Texas
  • Blue Cross and Blue Shield of Vermont
  • Blue Cross and Blue Shield of Wyoming
  • Blue Cross of Idaho
  • Blue Shield of California
  • BlueCross BlueShield of South Carolina
  • BlueCross BlueShield of Tennessee
  • CareFirst BlueCross BlueShield
  • Cigna
  • CoreSource
  • Coventry Health Care
  • Cross and Blue Shield of North Carolina
  • EmblemHealth
  • Highmark Blue Cross Blue Shield
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana
  • Independence Blue Cross AmeriHealth
  • MagnaCare
  • Medicare
  • Meritain Health
  • Pomco
  • Premera Blue Cross
  • Regence Blue Cross Blue Shield
  • TRICARE
  • United Healthcare
  • Wellmark Blue Cross and Blue Shield