Aleatha Denise Reitsma-Mathias, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

ME152672 Issued in FL

Practice address

8001 Challis Rd
Brighton, MI 48116-7446

Phone

(734) 998-2020

NPI assigned

Mar 28, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 14

Medicare fee-for-service enrollment

Enrolled in MI, FL2 enrollments

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.

Enrollment records 2

Specialty

Internal MedicineAlso: Hospitalist

Education

University of Iowa, RJ & L Carver College of Medicine, 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Regents of the University of MichiganGroup PAC ID 3779496856, 3,344 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Residential Home Health Home health agency, Troy, MI, CCN 237459
• University of Michigan Health System Hospital, Ann Arbor, MI, CCN 230046
• Trinity Health Livingston Hospital Hospital, Howell, MI, CCN 230069

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: areitsmamathias558285@direct.hfhs.org

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.

• Regents of the University of Michigan

  • Internal Medicine Physician
  • Ann Arbor, MI
  • NPI 1205868353
  Medicare reassignment Care Compare group NPD
• Degara App, PLLC

  • Emergency Medicine Physician
  • Lansing, MI
  • NPI 1265976971
  Medicare reassignment NPD
• Iha Health Services Corporation

  • Obstetrics & Gynecology Physician
  • Canton, MI
  • NPI 1457408965
  Medicare reassignment NPD
• Nchmd Inc

  • Hematology & Oncology Physician
  • Naples, FL
  • NPI 1831120195
  Medicare reassignment NPD
• Iha Health Service Corporation

  • Obstetrics & Gynecology Physician
  • Ypsilanti, MI
  • NPI 1831053701
  NPD
• Iha Health Services Corporation

  • Hospitalist Physician
  • Ypsilanti, MI
  • NPI 1306121405
  NPD
• Regents of the University of Michigan

  • Internal Medicine Physician
  • Brighton, MI
  • NPI 1275565657
  NPD
• Regents of the University of Michigan

  • Specialty Pharmacy
  • Dexter, MI
  • NPI 1952181919
  NPD
• Nchmd, Inc

  • Durable Medical Equipment & Medical Supplies
  • Naples, FL
  • NPI 1033904651
  NPD
• Anesthesia Associates of Ann Arbor, PLLC

  • Anesthesiology Physician
  • Westland, MI
  • NPI 1669581997
  NPD (past)
• Iha Health Services Corporation

  • Family Medicine Physician
  • Milan, MI
  • NPI 1467509067
  NPD (past)
• Regents of the University of Michigan

  • General Acute Care Hospital
  • Ann Arbor, MI
  • NPI 1003878539
  NPD (past)

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

• Regents of the University of Michigan

  • General Acute Care Hospital
  • Ann Arbor, MI
  • NPI 1003878539
  Care Compare affiliation
• Residential Home Health, LLC

  • Home Health Agency
  • Troy, MI
  • NPI 1992768550
  Care Compare affiliation
• Saint Joseph Mercy Livingston Hospital

  • General Acute Care Hospital
  • Brighton, MI
  • NPI 1093748642
  Care Compare affiliation

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

{
    "created_epoch": "1143504000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779235200000",
    "number": "1194786475",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 112019",
            "city": "NAPLES",
            "state": "FL",
            "postal_code": "341080134",
            "telephone_number": "239-624-6400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8001 CHALLIS RD",
            "city": "BRIGHTON",
            "state": "MI",
            "postal_code": "481167446",
            "telephone_number": "734-998-2020"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5301 E Huron River Dr",
            "address_purpose": "LOCATION",
            "city": "Ypsilanti",
            "state": "MI",
            "postal_code": "481971051",
            "country_code": "US",
            "telephone_number": "877-336-6307",
            "fax_number": "734-712-3855",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "350 7th St N",
            "address_purpose": "LOCATION",
            "city": "Naples",
            "state": "FL",
            "postal_code": "341025754",
            "country_code": "US",
            "telephone_number": "239-624-3997",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "REITSMA-MATHIAS",
        "first_name": "ALEATHA",
        "middle_name": "DENISE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-03-28",
        "last_updated": "2026-05-20",
        "certification_date": "2026-05-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301072313",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "FL",
            "license": "ME152672",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AVERA HEALTH PLAN",
            "identifier": "14857",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "SELECTFIRST",
            "identifier": "426038405",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "SIOUX VALLEY HEALTH PLAN",
            "identifier": "49409",
            "state": "IA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "112262800",
            "state": "FL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1484964",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "FIRST HEALTH",
            "identifier": "5682027",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "COVENTRY HEALTH CARE",
            "identifier": "H53025",
            "state": "IA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0484964",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MIDLANDS CHOICE",
            "identifier": "249977",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS - ER LOCATION",
            "identifier": "07878",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PREFERRED ONE",
            "identifier": "720911046506",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "DAKOTACARE",
            "identifier": "9236800",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICA",
            "identifier": "04-08715",
            "state": "IA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "2MG2S",
            "state": "FL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Regents of the University of Michigan
• Regents of the Unversity of Michigan
• Rehabilitation Specialists of Michigan (Livingston Co.)
• Tayyab Rehman
• Kristopher Reilly, PT, DPT
• Renal Treatment Centers-Illinois Inc.
• Renewed Healing Chiropractic PLLC
• Restorative Case Management, LLC
• Scott Carl Reusze, RPH
• Alicia Reyes

• Hospitalist Physician in Brighton, MI
• Providers in Brighton, MI by specialty
• Hospitalist Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 20, 2026; 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.
• 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.