Physician Profile
Bart M. Demaerschalk, M.D.
Unclaimed ProfileAbout Dr. Demaerschalk
Bart M. Demaerschalk, M.D. is a healthcare provider in Phoenix, AZ specializing in neurology. According to Medicare claims data, Bart cared for 170 Medicare patients across 187 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 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
- (480) 301-8000
- Email not available
Practice Locations
5777 E MAYO BLVD
Phoenix, AZ 85054
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
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
Spine, brain injury, and functional
Procedures & services
Most searched procedures
Consultation and testing
Consultations & Exams
Consultations and exams
Device management
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
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
Office procedures
Trauma & Injury
Procedures Most Often Billed to Medicare
187 services · 170 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
52 | As often as other peers in Neurology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
42 | As often as other 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 |
25 | Less often than most peers in Neurology |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
19 | As often as other 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 |
14 | Less often than most peers in Neurology |
| Telehealth consultation, emergency department or initial inpatient, typically 70 minutes or more communicating with the patient via telehealth | Billing code | G0427 |
13 | Less often than most peers in Neurology |
| Telehealth consultation, emergency department or initial inpatient, typically 50 minutes communicating with the patient via telehealth | Billing code | G0426 |
11 | Less often than most peers in Neurology |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
11 | 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.
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 neurologists in Phoenix 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1994 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Bart M. Demaerschalk?
Bart M. Demaerschalk is a neurologist in Phoenix, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurology”.
NPI registry
What is Bart M. Demaerschalk's address?
Bart M. Demaerschalk is listed at 5777 E Mayo Blvd, Phoenix, AZ 85054. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Bart M. Demaerschalk?
The number on file is (480) 301-8000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Bart M. Demaerschalk's NPI number?
Bart M. Demaerschalk's National Provider Identifier is 1457335994. 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 Bart M. Demaerschalk train?
Bart M. Demaerschalk attended Other, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
How long has Bart M. Demaerschalk been practicing?
Bart M. Demaerschalk has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
What procedures does Bart M. Demaerschalk perform?
According to Medicare billing data, Bart M. Demaerschalk the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Bart M. Demaerschalk confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Bart M. Demaerschalk. 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.