Physician Profile
Ernest H. Sponzilli, M.D. is a healthcare provider in Larkspur, CA specializing in physical medicine & rehabilitation. Ernest trained at Albany Medical College of Union University, graduating in 1992. Ernest is also listed as specializing in orthopaedic surgery. According to Medicare claims data, Ernest cared for 1,995 Medicare patients across 3,080 services. The services billed most often include low osmolar contrast material, 200-299 mg/ml iodine concentration, per ml, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
2 BON AIR RD, SUITE 120
Larkspur, CA 94939
Within Physical Medicine and Rehabilitation generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Brain and nerve conditions
Chronic pain
Foot & ankle
Joint pain
Joints and arms
Joints and legs
Mobility
Muscle & tendon
Nerve and muscle pain
Nerve pain
Neurological rehab
Pain management
Rehab and mobility
Rehabilitation
Spine and back
Spine care
Most searched procedures
Devices and implants
Diagnostics
Diagnostics and tests
Injections and pain relief
Joint care
Mobility
Muscle & tendon
Nerve procedures
Neuromuscular
Pain management
Physical medicine
Rehab and mobility
Rehabilitation
Spine procedures
3,080 services · 1,995 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | Procedure | 64483 |
209 | More than most peers in Rehabilitation medicine |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level | Procedure | 64484 |
165 | More than most peers in Rehabilitation medicine |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | Procedure | 64483 |
83 | More than most peers in Rehabilitation medicine |
| Injection of lower or sacral spine facet joint using imaging guidance, single level | Procedure | 64493 |
70 | More than most peers in Rehabilitation medicine |
| Injection of substance into middle or upper spine canal using imaging guidance | Procedure | 62321 |
58 | More often than most peers in Rehabilitation medicine |
| Injection of lower or sacral spine facet joint using imaging guidance, second level | Procedure | 64494 |
54 | More often than most peers in Rehabilitation medicine |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level | Procedure | 64484 |
48 | More than most peers in Rehabilitation medicine |
| Injection of lower or sacral spine facet joint using imaging guidance, single level | Procedure | 64493 |
46 | More than most peers in Rehabilitation medicine |
| Injection of upper or middle spine facet joint using imaging guidance, single level | Procedure | 64490 |
46 | More often than most peers in Rehabilitation medicine |
| Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint | Procedure | 64635 |
39 | More often than most peers in Rehabilitation medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Ernest H. Sponzilli is a rehabilitation physician in Larkspur, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Physical Medicine & Rehabilitation”.
NPI registry
Ernest H. Sponzilli is listed at 2 Bon Air Rd, Suite 120, Larkspur, CA 94939. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (415) 925-8200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Ernest H. Sponzilli's National Provider Identifier is 1497709984. 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
Ernest H. Sponzilli attended Albany Medical College of Union University, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
Ernest H. Sponzilli has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Ernest H. Sponzilli performs procedures including injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level, injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level and injection of lower or sacral spine facet joint using imaging guidance, single level; provides treatments such as needle measurement of electrical activity in arm or leg muscles, complete study and nerve conduction, 9-10 studies, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Ernest H. Sponzilli. 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.