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Edit this profileAt a glance
- 400 Parnassus Ave, 3Rd Floor, San Francisco, CA 94143
About Dr. Clark
Aaron Clark, MD, PhD practices neurological surgery in San Francisco, CA. Medicare claims data shows Aaron provided 1,620 services to 1,026 patients. The services billed most often include fusion of additional segment of spine, 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 low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1518295815.
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
- (866) 817-7463
- Email not available
Practice Locations
400 PARNASSUS AVE 3RD FLOOR
San Francisco, CA 94143
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
Brain conditions
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
Brain tumors
Movement disorders
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
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
Procedures & services
Most searched procedures
Brain & spine surgery
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
Cranial reconstruction
Diagnostic & therapeutic
Endovascular procedures
Functional neurosurgery
Monitoring & trauma
Nerve procedures
Nerve surgery
Pain procedures
- Epidural steroid injection
- Facet Joint Injections
- Pain pump implant
- Radiofrequency ablation
- Spinal cord stimulator implant
Pediatric neurosurgery
Radiation & radiosurgery
Radiation surgery
Skull base surgery
Spasticity treatment
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
Procedures Most Often Billed to Medicare
1,620 services · 1,026 patients · 21 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Fusion of additional segment of spine | Procedure | 22614 |
564 | More than most peers in Neurological Surgery |
| Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment | Procedure | 63048 |
115 | More than most peers in Neurological Surgery |
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
78 | More than most peers in Neurological Surgery |
| Insertion of cage or mesh device to spine bone and disc space during spine fusion | Procedure | 22853 |
67 | More often than most peers in Neurological Surgery |
| Fusion of spine in lower back | Procedure | 22612 |
56 | More than most peers in Neurological Surgery |
| Placement of stabilizing device to back, 7-12 spine bone segments | Procedure | 22843 |
41 | More than most peers in Neurological Surgery |
| Insertion of instrumentation to pelvic bones | Procedure | 22848 |
40 | More than most peers in Neurological Surgery |
| Computer-assisted spinal procedure | Procedure | 61783 |
30 | More often than most peers in Neurological Surgery |
| Fusion of spine in lower back with partial removal of spine bone and disc | Procedure | 22633 |
29 | More often than most peers in Neurological Surgery |
| Placement of stabilizing device to back, 3-6 spine bone segments | Procedure | 22842 |
27 | More often than most peers in Neurological Surgery |
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.
Related specialists at this location 2
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.
Other neurosurgeons in San Francisco 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2008 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Fusion of additional segment of spine 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Clark's specialty?
Dr. Clark is a neurosurgeon in San Francisco, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurological Surgery”.
NPI registry
Where can I find Dr. Clark?
Dr. Clark is listed at 400 Parnassus Ave 3Rd Floor, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Clark?
The number on file is (866) 817-7463. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Clark?
Dr. Clark's National Provider Identifier is 1518295815. 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
What is Dr. Clark's medical education?
Dr. Clark attended Other, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Clark have?
Dr. Clark has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Clark known for?
According to Medicare billing data, Dr. Clark performs procedures including fusion of additional segment of spine, partial removal of spine bone with release of spinal cord and/or nerves, each additional segment and partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Clark's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Clark. If this is you, claiming it is free.
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