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Edit this profileWhere to find William B. Farnsworth, M.D.
- Carlsbad location main office
6010 Hidden Valley Rd Ste 200, Carlsbad, CA 92011 - Temecula location
31720 Temecula Pkwy Ste 101, Temecula, CA 92592 - Escondido location
1955 Citracado Pkwy Ste 102, Escondido, CA 92029
About Dr. Farnsworth
Based in Carlsbad, CA, William B. Farnsworth, M.D. is listed in the NPI registry under neurology. According to Medicare claims data, William cared for 1,182 Medicare patients across 13,614 services. The services billed most often include injection, onabotulinumtoxina, 1 unit, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. NPI 1669827028 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
- (760) 631-3000
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
6010 HIDDEN VALLEY RD STE 200
Carlsbad, CA 92011
31720 Temecula Pkwy Ste 101
Temecula, CA 92592
1955 Citracado Pkwy Ste 102
Escondido, CA 92029
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
Brain & memory
Specialized neurologic care
Spine, brain injury, and functional
Most searched conditions
Headache and facial pain
Memory and cognition
Movement disorders
Neuromuscular and peripheral nerve
- Amyotrophic lateral sclerosis
- Carpal tunnel
- Diabetic neuropathy
- Guillain-Barré syndrome
- Muscular dystrophy
- Myasthenia gravis
Seizures and epilepsy
Stroke and vascular
Brain & Spine
Brain tumors
Head & Facial Pain
Memory & Cognitive
Movement Disorders
Nerve Compression
Sleep & Movement
Spine and nerve
Procedures & services
Consultation and testing
- Comprehensive neurologic examination
- Inpatient video EEG monitoring
- Ambulatory EEG
- Evoked-potential testing
- Nerve-conduction studies
Device and advanced subspecialty
Diagnostic Testing
- Cognitive and memory screening
- Genetic Testing for Neurological Disorders
- Neuromuscular Ultrasound
- Neuropsychological Testing
- Normal Pressure Hydrocephalus Tap Test
- Tilt Table Test
Geriatric care
Office procedures
- Botulinum toxin injections for chronic migraine
- Botulinum toxin injections for dystonia or spasticity
- Lumbar puncture
- Occipital nerve block
Pain & wellness
Treatment management
- Epilepsy medication management
- Migraine preventive treatment
- Multiple sclerosis disease-modifying treatment
Most searched procedures
Consultations & Exams
Consultations and exams
Device management
Infusion and medical therapies
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
Neuromodulation
Trauma & Injury
Procedures Most Often Billed to Medicare
13,614 services · 1,182 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face | Procedure | 64615 |
60 | More often than most peers in Neurology |
| Evaluation and testing for balance with recording | Treatment | 92540 |
11 | Less often than most peers in Neurology |
| Injection, onabotulinumtoxina, 1 unit | Drug given | J0585 |
12,000 | As often as other peers in Neurology |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
558 | More than most 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 |
343 | More often than most peers in Neurology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
167 | More often than most peers in Neurology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
133 | More often than most peers in Neurology |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Billing code | G2212 |
100 | More often than most peers in Neurology |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
68 | More often than most 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 |
62 | As often as other 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 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
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 — 25 related providers in 4 groups
Other neurologists in Carlsbad 2
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2016 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face 7
Providers in CA who bill this service to Medicare most often.
Common questions
What does William B. Farnsworth specialize in?
William B. Farnsworth is a neurologist in Carlsbad, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurology”.
NPI registry
Where is William B. Farnsworth located?
William B. Farnsworth is listed at 6010 Hidden Valley Rd Ste 200, Carlsbad, CA 92011. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is William B. Farnsworth's phone number?
The number on file is (760) 631-3000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is William B. Farnsworth's NPI number?
William B. Farnsworth's National Provider Identifier is 1669827028. 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 William B. Farnsworth train?
William B. Farnsworth attended Other, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How long has William B. Farnsworth been practicing?
William B. Farnsworth has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What does William B. Farnsworth do most often?
According to Medicare billing data, William B. Farnsworth performs procedures including injection of chemical for paralysis of facial and neck nerve muscles on both sides of face; provides treatments such as evaluation and testing for balance with recording, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has William B. Farnsworth confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by William B. Farnsworth. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.