Bart M Demaerschalk, M.D.

Primary specialty

Neurology PhysicianTaxonomy code 2084N0400X

License

29047 Issued in AZ

Practice address

5777 E Mayo Blvd
Phoenix, AZ 85054

Phone

(480) 301-8000

NPI assigned

Nov 29, 2005

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 12

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Opted out of Medicare

Yes, effective Oct 10, 2025 through Oct 10, 2027

Specialty

Neurology

Education

Other, 1994

Medicare assignment

May accept Medicare assignment

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mayo Clinic Hospital Hospital, Phoenix, AZ, CCN 030103

Merit-based Incentive Payment System (MIPS)

Final score

86.47 of 100Reported as group

Quality

78.27

Promoting interoperability

100

Improvement activities

40

Cost

76.62

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/24265/brand/1/csg/1/fhir/r4
• Direct secure messaging: bart.demaerschalk.1@24265.direct.athenahealth.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Kingman Healthcare, Inc

  • Specialist
  • Kingman, AZ
  • NPI 1689897787
  NPD (past)
• Atria Physician Practice New York, PC

  • Internal Medicine Physician
  • New York, NY
  • NPI 1194487520
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Mayo Clinic Arizona

  dba Mayo Clinic Hospital

  • General Acute Care Hospital
  • Phoenix, AZ
  • NPI 1154392231
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1133222400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761868800000",
    "number": "1457335994",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5777 E MAYO BLVD",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850544502",
            "telephone_number": "480-301-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5777 E MAYO BLVD",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "85054",
            "telephone_number": "480-301-8000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEMAERSCHALK",
        "first_name": "BART",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-29",
        "last_updated": "2025-10-31",
        "certification_date": "2025-10-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "FL",
            "license": "ME127231",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "OK",
            "license": "33826",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "MO",
            "license": "2016026970",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "VT",
            "license": "042.0012901",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "MN",
            "license": "60040",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "AZ",
            "license": "29047",
            "primary": true
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "NV",
            "license": "15084",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "GA",
            "license": "075778",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "IA",
            "license": "43464",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "NH",
            "license": "16343",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "WI",
            "license": "65691",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "ME",
            "license": "MD20204",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Fernando Delucca
• Manny Delucca, M.D.
• Anne Carol Delung, SLP
• Jennifer Delzell, M.D.
• Sascha Delzepich
• Aminata Teecee Demaih, LPC
• David S Demaine, DDS
• Elizabeth Demar, RN
• Ruth W Demar, RPH
• Kristen Demarrais, DPT

• Neurology Physician in Phoenix, AZ
• Providers in Phoenix, AZ by specialty
• Neurology Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 31, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.