Physician Profile
Ennis J. Duffis, M.D.
Unclaimed ProfileAbout Dr. Duffis
Based in Springfield, MA, Ennis J. Duffis, M.D. is listed in the NPI registry under neurology. Ennis is also listed as specializing in vascular neurology. Medicare claims data shows Ennis provided 172 services to 160 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (413) 794-5600
- Email not available
Practice Locations
3300 MAIN ST 3RD FLOOR, SUITE C&D
Springfield, MA 01107
30 Harrison St Ste 400
Johnson City, NY 13790
Conditions Commonly Evaluated or Treated
Within Neurology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Alzheimer's disease
- Epilepsy
- Migraines
- Multiple sclerosis
- Neuropathy
- Parkinson's disease
Headache and facial pain
- Tension headaches
- Trigeminal neuralgia
Memory and cognition
- Mild cognitive impairment
Movement disorders
- Essential tremor
- Huntington's disease
- Restless legs syndrome
Neuromuscular and peripheral nerve
- Amyotrophic lateral sclerosis
- Carpal tunnel
- Diabetic neuropathy
- Guillain-Barré syndrome
- Muscular dystrophy
- Myasthenia gravis
Seizures and epilepsy
- Functional seizures
Stroke and vascular
- Brain aneurysm
- Transient ischemic attack
Brain & Spine
- Severe back pain
Brain tumors
- Brain Tumor Symptoms
Head & Facial Pain
- Cluster Headaches
Memory & Cognitive
- Normal Pressure Hydrocephalus
Movement Disorders
- Balance Problems and Ataxia
- Stiff neck
- Stiff Person Syndrome
- Tourette Syndrome and Tics
Nerve Compression
- Sciatica
Sleep & Movement
- Narcolepsy
Spine and nerve
- Cervical radiculopathy
Spine, brain injury, and functional
- Bell's palsy
- Concussion
Procedures & services
Most searched procedures
- Botox for migraines
- EEG
- EMG
- Nerve block
- Sleep study
Consultation and testing
- Ambulatory EEG
- Evoked-potential testing
- Nerve-conduction studies
Consultations & Exams
- Neurological Second Opinion
- Spasticity Assessment and Treatment
- Stroke Risk Evaluation
Consultations and exams
- Neurological Exam and Consultation
Device management
- Deep Brain Stimulation Adjustment
- Responsive Neurostimulator Programming
Diagnostic Testing
- Cognitive and memory screening
- Genetic Testing for Neurological Disorders
- Neuromuscular Ultrasound
- Neuropsychological Testing
- Normal Pressure Hydrocephalus Tap Test
- Tilt Table Test
Infusion and medical therapies
- Neurology Infusion Therapy
Infusions & Therapies
- IVIG Infusion Therapy
- Migraine Preventive Injections and Infusions
- MS Disease-Modifying Infusion Therapy
- Plasmapheresis
Injections & Pain Relief
- Botox Injections for Excessive Drooling
- Botox Injections for Muscle Spasms and Dystonia
- Trigger Point Injections
Medication Management
- Seizure Medication Management
Neuromodulation
- Baclofen Pump Programming and Refills
- Vagus nerve stimulation management
Office procedures
- Lumbar puncture
- Occipital nerve block
Trauma & Injury
- Concussion Evaluation and Baseline Testing
- Concussion Return-to-Play Clearance
Procedures Most Often Billed to Medicare
172 services · 160 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist | Procedure | 36224 |
19 | As often as other peers in Neurology |
| Insertion of tube into brain artery for diagnosis or treatment with review by radiologist | Procedure | 36226 |
11 | Less often than most peers in Neurology |
| 3d radiographic procedure with computerized image postprocessing | Imaging | 76377 |
17 | Less often than most peers in Neurology |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
21 | As often as other peers in Neurology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
37 | As often as other peers in Neurology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
30 | As often as other peers in Neurology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
25 | Less often than most peers in Neurology |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
12 | Less often than most peers in Neurology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other neurologists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 29 related providers in 4 groups
Other neurologists in Springfield 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2005 at Other 7
Providers who graduated from the same medical school in the same year.
Also performs Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist 8
Providers in MA who bill this service to Medicare most often.
Common questions
What does Ennis J. Duffis specialize in?
Ennis J. Duffis is a neurologist in Springfield, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurology”.
NPI registry
Where is Ennis J. Duffis located?
Ennis J. Duffis is listed at 3300 Main St 3Rd Floor, Suite C&D, Springfield, MA 01107. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Ennis J. Duffis's phone number?
The number on file is (413) 794-5600. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Ennis J. Duffis?
Ennis J. Duffis's National Provider Identifier is 1174674295. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Ennis J. Duffis train?
Ennis J. Duffis attended Other, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Ennis J. Duffis have?
Ennis J. Duffis has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What does Ennis J. Duffis do most often?
According to Medicare billing data, Ennis J. Duffis performs procedures including insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist and insertion of tube into brain artery for diagnosis or treatment with review by radiologist; reads or performs imaging such as 3d radiographic procedure with computerized image postprocessing; provides treatments such as use of a drug to induce depression of consciousness by physician performing a procedure , initial 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Ennis J. Duffis's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Ennis J. Duffis. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.