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Dr. Jack Greenwood, MD

Neurology ·  Male · Age 70

Dr. Greenwood

Port Jefferson Office

120 N Country Rd Port Jefferson, NY 11777

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Dr. Jack Greenwood, MD is a neurology specialist in Port Jefferson, NY and has been practicing for 39 years. He graduated from New York University in 1974 and specializes in neurology and pediatric neurology.


Dr. Greenwood's Reviews

Likelihood to recommend Dr. Greenwood

2.5

Based on 8 reviews

5 Stars
37.5%
(3)
4 Stars
0%
(0)
3 Stars
0%
(0)
2 Stars
0%
(0)
1 Star
62.5%
(5)

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Average Reported Wait Time
  • 10 – 15 minutes
Dr. Greenwood's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Jack Greenwood, MD
RecentHighestLowestMost Helpful
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Very thorough Dr. Takes notes throughout your initial interview.. Very calm manner which works well with someone as nervous as I am. Secretary is very accommodating and sweet.
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The doctor is great but the lady he has at the front desk can be very rude at times and is refusing to let me be seen even tho I ran out of my medication her name is joy... I have epiilepsy and they refuse to give me and appointment because I supposedly missed an appointment time I never agreed on.
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I am clearly coming to see a doctor because I have a problem. Part of this problem is forgetfulness. I had an 11:30 appointment and was late. I was met OUTSIDE by a receptionist told I wouldn't be seen and couldn't reschedule again... good luck to me. HOW HORRIBLE AND DISGUSTING FOR A DOCTOR WHO TAKES A VOW TO HELP PEOPLE TO TREAT SOMEONE THAT WAY!!!!! I am very distressed and will be looking to see if there is anything I can do about this lack of professional treatment.
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I was given a date & time which I wrote down in my daily planner. 5 days before my appt his receptionist call & told me I missed my appt. I explained I was told a different date & there was an honest mistake made by one the parties. I was told that "No Dr Greenwood does not make any acceptions for no shows". The woman was very snarky & had called me back 3 time to make sure she got me to say you can never be seen here!! A very cold & rigid policy for any MD to have especially a neurologist!!
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About Me

Biography

Dr. Jack Greenwood, MD is a neurology specialist in Port Jefferson, NY and has been practicing for 39 years. He graduated from New York University in 1974 and specializes in neurology and pediatric neurology.

Specialties

  • Neurology
  • Pediatric Neurology

Board Certifications

  • Neurology with Special Qualification in Child Neurology

Education

Nyu
Residency Hospital
1980
New York University
Fellowship Hospital
1974
Nyu
Internship Hospital
1974
New York University
Medical School
Bucknell
Undergraduate School
1980
1974
1974

Languages

  • French
  • English

Awards

Insurance Check

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Dr. Greenwood accepts

Accepted insurance can change. Please double-check when making an appointment.

(631) 474-0444

Dr. Greenwood accepts the following insurance:

Aetna
Aetna HMO
Choice Plus POS II
Blue Cross Blue Shield
Blue Card PPO
Cigna
Cigna HMO
Cigna PPO
Great West Healthcare-Cigna PPO
Open Access
Commercial Insurance Company
EmblemHealth
Emblem Health
GHI PPO
Empire Blue Cross Blue Shield
Empire Blue Cross Blue Shield HMO
Fidelis Care
Fidelis Care HMO
Government Employees Health Association (GEHA)
GEHA
HealthFirst
Locals (any local)
MagnaCare
MagnaCare PPO
MultiPlan
MultiPlan PPO
PHCS Network PPO
National Elevator
Oxford Health Plans
POMCO Group
UnitedHealthCare
Choice Plus POS
Navigate HMO
Navigate POS
Options PPO
Oxford Liberty
United Healthcare

Background Check

No malpractice claims found for New York
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Greenwood's experience treating your condition or procedure

Dr. Greenwood's Top Procedures and Conditions

Treatment Frequency
Vertigo
very high
very high

Treatment Frequency

Dr. Greenwood treats Vertigo more than 100% of his peers

Dr. Greenwood treats this condition more than 100% of his peers

Rating Includes other areas of care:

  • Benign Paroxyzmal Vertigo of Childhood
  • Benign Positional Vertigo
  • Central Vestibular Vertigo
  • Migrainous Vertigo
Peripheral Nerve Disorders
very high
very high

Treatment Frequency

Dr. Greenwood treats Peripheral Nerve Disorders more than 100% of his peers

Dr. Greenwood treats this condition more than 100% of his peers

Rating Includes other areas of care:

  • Acute Inflammatory Demyelinating Polyradiculoneuropathy
  • Alcoholic Neuropathy
  • Alcoholic Polyneuropathy
  • Anterior Ischemic Optic Neuropathy
  • Auditory Neuropathy
  • Autonomic Disorders
  • Autonomic Dysreflexia
  • Autonomic Neuropathy
  • Carcinomatous Polyneuropathy
  • Carotid Sinus Syncope
  • Chronic Demyelinating Neuropathy With IgM Monoclonal Gammapathy
  • Chronic Inflammatory Demyelinating Polyneuropathy
  • Chronic Inflammatory Demyelinating Polyradiculoneuropathy
  • Congenital Neuropathy With Arthrogryposis Multiplex Congenita
  • Congenital Sensory Neuropathy With Neurotrophic Keratitis
  • Demyelinating Polyneuropathy
  • Diabetic Neuropathy
  • Diabetic Polyneuropathy
  • Hand Neuropathy
  • Hereditary Neuropathy With Liability to Pressure Palsies
  • Hereditary Sensory and Autonomic Neuropathy, Type I
  • Infantile Refsum Disease
  • Inflammatory and Toxic Neuropathy
  • Inflammatory Neuropathies
  • Leber Hereditary Optic Neuropathy
  • Metabolic Neuropathy
  • Motor and Sensory Neuropathy With Sensorineural Hearing Loss, Bouldin Type
  • Motor Neuropathy
  • Motor Neuropathy, Peripheral With Dysautonomia
  • Multifocal Motor Neuropathy
  • Multifocal Motor Neuropathy With Conduction Block
  • Neuropathy, Distal Hereditary Motor
  • Neuropathy, Distal Hereditary Motor, Jerash Type
  • Neuropathy, Distal Hereditary Motor, Type III
  • Neuropathy, Distal Hereditary Motor, Type VIIa
  • Neuropathy, Hereditary Motor and Sensory, Lom Type
  • Neuropathy, Hereditary Motor and Sensory, Okinawa Type
  • Neuropathy, Hereditary Sensory, Radicular
  • Neuropathy, Hereditary Sensory, Type I
  • Neuropathy, Hereditary Sensory, Type II
  • Neuropathy, Hereditary Sensory, Type IV
  • Neuropathy, Motor & Sensory
  • Optic Neuropathy
  • Peripheral Neuropathy
  • Peroneal Muscular Atrophy
  • Polyneuropathy
  • Polyradiculoneuropathy
  • Pudenal Neuropathy
  • Reflex Sympathetic Dystrophy
  • Retrobulbar Neuropathy
  • Sensory Neuropathy With Spastic Paraplegia
  • Spinal Bulbar Motor Neuropathy
  • Spinocerebellar Ataxia With Axonal Neuropathy, Type 2
  • Spinocerebellar Ataxia, Autosomal Recessive, With Axonal Neuropathy
  • Toxic Polyneuropathy Due to Acrylamide
  • Ulnar Neuropathy
  • Vascular Neuropathy
Nystagmus
very high
very high

Treatment Frequency

Dr. Greenwood treats Nystagmus more than 94% of his peers

Dr. Greenwood treats this condition more than 94% of his peers

Rating Includes other areas of care:

  • Congenital Motor Nystagmus
  • Nystagmus 1, Congenital, X-Linked
  • Nystagmus 2, Congenital, Autosomal Dominant
  • Nystagmus, Congenital Motor, Autosomal Recessive
  • Nystagmus, Hereditary Vertical
  • Nystagmus, Myoclonic

Dr. Greenwood's conditions and procedures:

  • ADHD and-or ADD
  • ADHD Testing
  • All Headaches (incl. Migraine)
  • Alzheimer's Disease
  • Aneurysm
  • Ataxia
  • Attention Deficit Disorder (ADD)
  • Autonomic Disorders
  • Bell's Palsy
  • Brain Aneurysm
  • Brain Disorders
  • Carpal Tunnel Syndrome
  • Cerebral Artery Thrombosis
  • Cerebral Hemorrhage
  • Cerebrovascular Disease
  • Complex Regional Pain Syndrome (CRPS)
  • Concussion
  • Confusion
  • Cranial Trauma
  • Dementia
  • Diabetic Polyneuropathy
  • Diplopia
  • Dystonia
  • EEG (Electroencephalogram)
  • EMG (Electromyography)
  • Epilepsy
  • Essential Tremor
  • Gait Abnormality
  • Headache
  • Herniated Disc
  • Hydrocephalus
  • Insomnia
  • Intervertebral Disc Disease
  • Low Back Pain
  • Lyme Disease
  • Migraine
  • Multiple Sclerosis (MS)
  • Myelopathy
  • Myoclonus
  • Narcolepsy and Cataplexy
  • Nerve Root Injury and Plexus Disorders (incl. Pinched Nerve)
  • Nystagmus
  • Parkinson's Disease
  • Peripheral Autonomic Neuropathy
  • Peripheral Nerve Disorders
  • Polyneuropathy
  • Radiculopathy (Not Due to Disc Displacement)
  • Restless Leg Syndrome
  • Seizure Disorders
  • Sleep Apnea
  • Sleep Disorders
  • Stroke
  • Subarachnoid Hemorrhage
  • Syncope
  • Thrombosis
  • Tic Disorders
  • Torticollis
  • Transient Ischemic Attack (TIA)
  • Traumatic Brain Injury
  • Tremor
  • Trigeminal Neuralgia
  • Vascular Disease
  • Vasculitis
  • Vertigo

Affiliated Hospitals

Check the quality of care at hospitals where Dr. Greenwood treats patients.

Learn more

Saint Charles Hospital

Port Jefferson, NY