Bart M. Demaerschalk, M.D.
Neurology Physician · Phoenix, AZ
Bart M. Demaerschalk, M.D. is a neurology physician with a practice address in Phoenix, Arizona, and NPI 1457335994, issued on Nov 29, 2005. Check the license (Arizona 29047, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Bart M. Demaerschalk
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 29047 AZ
ME127231 FL
075778 GA
43464 IA
MD20204 ME
and 7 more
Self-reported in NPPES; status is on the state search - Practice location
- 5777 E Mayo Blvd, Phoenix, AZ 85054
- Phone
- (480) 301-8000
- Enumerated
- Nov 29, 2005
- Record last updated
- Oct 31, 2025
- Medicare enrollment
- Enrolled (PECOS I20100125000207); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 458 in Arizona → Look up another NPI →
Also registered at 5777 E Mayo Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Bart M. Demaerschalk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 29047Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average neurology physician in 2024
30 Medicare Part D claims, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 78.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $7,119.65
2 payments; by number, the most common kind was travel and lodging; the largest payer was Genentech, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bart M. Demaerschalk among 458 neurology physician records in Arizona
Bart M. Demaerschalk, M.D. is one of 458 neurology physician records with a practice address in Arizona. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1994 · median 2005 among the 298 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Arizona
There are 458 neurology physician records in Arizona.
All 458 in Arizona → Every provider in Phoenix → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Maria Aguilar, MDPhoenix, AZ 850541518924190
- Shannon ChiuPhoenix, AZ 850541891105417
- Amy Crepeau, M.D.Phoenix, AZ 850541811180086
- Esma Dilli, M.D.Phoenix, AZ 850541912162983
- Bachir Estephan, MDPhoenix, AZ 850541699977132
- Eric Hastriter, MDPhoenix, AZ 850541740381920
- Timothy Ingall, M.D.Phoenix, AZ 850541083698195
- Sotiris Mitropanopoulos, MDPhoenix, AZ 850541164780748
Common questions
What is Bart M. Demaerschalk, M.D.'s NPI number?
Bart M. Demaerschalk, M.D.'s National Provider Identifier (NPI) is 1457335994, issued on Nov 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Bart M. Demaerschalk, M.D. located?
The NPPES record lists a practice address at 5777 E Mayo Blvd, Phoenix, AZ, 85054. Phone: (480) 301-8000. Providers update this record themselves, so call before visiting.
How can I verify Bart M. Demaerschalk, M.D.'s license?
NPPES lists Arizona license number 29047, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Bart M. Demaerschalk, M.D. prescribe under Medicare Part D?
In 2024, Bart M. Demaerschalk, M.D. had 30 Medicare Part D claims; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Bart M. Demaerschalk, M.D.'s MIPS final score?
The 2023 MIPS final score is 78.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.