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Edit this profileAt a glance
- 842 Sunset Lake Blvd, Suite 302, Venice, FL 34292
About Dr. Cassidy
Based in Venice, FL, John R. Cassidy, M.D. is listed in the NPI registry under neurological surgery. John graduated from Virginia Commonwealth University, School of Medicine in 1980. Medicare claims data shows John provided 10,522 services to 1,050 patients. The services billed most often include injection, methylprednisolone acetate, 1 mg, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more. NPI 1518067727 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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
- (941) 484-3404
- Email not available
Practice Locations
842 SUNSET LAKE BLVD SUITE 302
Venice, FL 34292
Conditions Commonly Evaluated or Treated
Within Neurological Surgery 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
Brain & spine conditions
- Spinal Fluid Leak
Brain conditions
- Brain Swelling
- Water On Baby's Brain
Brain disorders
- Acoustic Neuroma
- Brain Vascular Malformation
- Chiari Malformation
- Drug-Resistant Seizures
- Epidermoid cyst
- Hemorrhagic stroke
- Meningitis
- Normal Pressure Hydrocephalus
- Papilledema
- Pituitary Tumor
Brain injury
- Blood Clot On The Brain
- Traumatic brain injury
Brain tumors
- Brain Tumor Symptoms
- Glioblastoma
Movement disorders
- Essential tremor
- Muscle Spasms & Twitches
- Parkinson's disease
- Severe Muscle Spasticity
Nerve disorders
- Carpal tunnel
- Cubital tunnel syndrome
- Cut Or Injured Nerve
- Face Twitching
- Occipital neuralgia
- Outer thigh burning and numbness
- Thoracic outlet syndrome
- Trigeminal neuralgia
Pain
Pediatric conditions
- Baby Flat Head
- Open Spine Birth Defect
Spine & back
- Arthritis of the spine
- Chronic back pain
- Chronic Neck Pain
- Degenerative disc disease
- Failed back surgery syndrome
- Severe back pain
- Spinal Cord Tumor
- Spondylolisthesis
- Tethered Spinal Cord
Spine conditions
- Bone Spurs In The Spine
- Fluid Cyst In Spinal Cord
- Spinal compression fracture
- Spine Infection
- Stress Fracture Of The Spine
Spine deformity
Trauma & injury
- Concussion in Children
- Skull Fracture
- Spinal Cord Injury
Procedures & services
Nerves & spine
Most searched procedures
- Craniotomy
- Discectomy
- Laminectomy
- Lumbar discectomy
- Spinal fusion
- Spine surgery
Brain & spine surgery
- CSF Leak Repair
Brain procedures
- Awake Brain Mapping Surgery
- Brain Shunt Placement
- Chiari Decompression Surgery
- Deep Brain Stimulation
- Draining A Brain Bleed
- Facial Nerve Decompression Surgery
- Laser Brain Surgery
- Minimally Invasive Endoscopic Brain Surgery
- Needle Brain Biopsy
Brain surgery
- GPS-Guided Brain Navigation Surgery
- Skull Bone Removal For Pressure Relief
Cranial reconstruction
- Skull Reconstruction
Diagnostic & therapeutic
Endovascular procedures
- Brain Aneurysm Coiling
Functional neurosurgery
- Surgery For Seizures
- Vagus Nerve Stimulator Implant
Monitoring & trauma
- Brain Pressure Monitor Placement
Nerve procedures
- Carpal tunnel surgery
- Cubital tunnel decompression
- Nerve Repair Surgery
Nerve surgery
Pain procedures
- Epidural steroid injection
- Facet Joint Injections
- Pain pump implant
- Radiofrequency ablation
- Spinal cord stimulator implant
Pediatric neurosurgery
- Baby Skull Reshaping Surgery
- Nerve Surgery For Cerebral Palsy
Radiation & radiosurgery
- CyberKnife
Radiation surgery
- Stereotactic radiosurgery (SRS)
Skull base surgery
- Acoustic Neuroma Surgery
- Pituitary Tumor Removal
- Skull Base Surgery
Spasticity treatment
- Baclofen Pump Insertion
Spine procedures
- Artificial Disc Replacement
- Kyphoplasty
- Nerve Opening Widening
- Scoliosis correction surgery
- SI Joint Fusion
- Spinal Cyst Removal
- Tethered Cord Release
- Vertebra Removal Surgery
Spine surgery
- Minimally Invasive Spine Surgery
- Neck Canal Enlargement Surgery
- Spinal Cord Tumor Removal
- Vertebroplasty
Vascular neurosurgery
- Brain Aneurysm Clipping
- Carotid endarterectomy
Procedures Most Often Billed to Medicare
10,522 services · 1,050 patients · 20 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of trigger points, 1-2 muscles | Procedure | 20552 |
157 | Too few peers to compare |
| Insertion of cage or mesh device to spine bone and disc space during spine fusion | Procedure | 22853 |
29 | As often as other peers in Neurological Surgery |
| Graft of donor bone to spine | Procedure | 20931 |
29 | More often than most peers in Neurological Surgery |
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
23 | More often than most peers in Neurological Surgery |
| Partial removal of spine bone with release of lower spinal cord or nerves and/or removal of disc | Procedure | 63030 |
20 | More often than most peers in Neurological Surgery |
| Release of lower spinal cord and/or nerves, single segment | Procedure | 63056 |
17 | As often as other peers in Neurological Surgery |
| Placement of stabilizing device to front, 2-3 spine bone segments | Procedure | 22845 |
17 | As often as other peers in Neurological Surgery |
| Fusion of upper spine bone with removal of disc and release of spinal cord or nerve, 1 disc | Procedure | 22551 |
16 | As often as other peers in Neurological Surgery |
| Fusion of spine in lower back with partial removal of spine bone and disc | Procedure | 22633 |
12 | Less often than most peers in Neurological Surgery |
| Closed treatment of broken spine bone with cast or brace | Procedure | 22310 |
12 | Too few peers to compare |
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 neurosurgeons at this location 1
Same specialty, same street address — most likely the same department or group.
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 — 16 related providers in 2 groups
Trained at Virginia Commonwealth University, School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Virginia Commonwealth University, School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is John R. Cassidy?
John R. Cassidy is a neurosurgeon in Venice, FL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurological Surgery”.
NPI registry
What is John R. Cassidy's address?
John R. Cassidy is listed at 842 Sunset Lake Blvd Suite 302, Venice, FL 34292. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with John R. Cassidy?
The number on file is (941) 484-3404. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for John R. Cassidy?
John R. Cassidy's National Provider Identifier is 1518067727. 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 John R. Cassidy train?
John R. Cassidy attended Virginia Commonwealth University, School of Medicine, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How much experience does John R. Cassidy have?
John R. Cassidy has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What procedures does John R. Cassidy perform?
According to Medicare billing data, John R. Cassidy performs procedures including injection of trigger points, 1-2 muscles, insertion of cage or mesh device to spine bone and disc space during spine fusion and graft of donor bone to spine; reads or performs imaging such as imaging guidance for procedure, 60 minutes or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is John R. Cassidy's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John R. Cassidy. If this is you, claiming it is free.
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