Karl Brenner, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

4301067854 Issued in MI

Practice address

2090 Commonwealth Blvd
Ann Arbor, MI 48105-1580

Phone

(734) 995-0303

Fax

(734) 995-0425

NPI assigned

Mar 1, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MI

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 1

Specialty

Internal Medicine

Education

University of Michigan Medical School, 1996

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Iha Health Services CorporationGroup PAC ID 2466351440, 1,149 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Elara Caring Home health agency, Jackson, MI, CCN 237274
• Trinity Health at Home- Southeast Michigan Home health agency, Livonia, MI, CCN 237069
• Trinity Health Ann Arbor Hospital Hospital, Ann Arbor, MI, CCN 230156
• Trinity Health Livingston Hospital Hospital, Howell, MI, CCN 230069
• Chelsea Hospital Hospital, Chelsea, MI, CCN 230259
• St Joe Mercy Hospital System Livonia Hospital, Livonia, MI, CCN 230002
• University of Michigan Health System Hospital, Ann Arbor, MI, CCN 230046

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: kbrenner32407@direct.trinity-health.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.

• Iha Health Services Corporation

  • Obstetrics & Gynecology Physician
  • Canton, MI
  • NPI 1457408965
  Medicare reassignment Care Compare group NPD
• Iha Health Service Corporation

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

  • Gynecology Physician
  • Ypsilanti, MI
  • NPI 1083761696
  NPD
• Iha Health Services Corporation

  • Family Medicine Physician
  • Milan, MI
  • NPI 1467509067
  NPD (past)

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

• Great Lakes Home Health Services, Inc.

  • Home Health Agency
  • Jackson, MI
  • NPI 1588642110
  Care Compare affiliation
• Regents of the University of Michigan

  • General Acute Care Hospital
  • Ann Arbor, MI
  • NPI 1003878539
  Care Compare affiliation
• Saint Joseph Mercy Livingston Hospital

  • General Acute Care Hospital
  • Brighton, MI
  • NPI 1093748642
  Care Compare affiliation
• St Joseph Mercy Chelsea Inc

  • General Acute Care Hospital
  • Chelsea, MI
  • NPI 1992761985
  Care Compare affiliation
• St Joseph Mercy Hospital

  • General Acute Care Hospital
  • Ypsilanti, MI
  • NPI 1780658443
  Care Compare affiliation
• St Mary Mercy Hospital

  • General Acute Care Hospital
  • Livonia, MI
  • NPI 1790706901
  Care Compare affiliation
• Trinity Home Health Services

  • Home Health Agency
  • Livonia, MI
  • NPI 1508823774
  Care Compare affiliation

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

{
    "created_epoch": "1141171200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1033186770",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2100 COMMONWEALTH BLVD",
            "address_2": "SUITE 202",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481051593"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2090 COMMONWEALTH BLVD",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481051580",
            "telephone_number": "734-995-0303",
            "fax_number": "734-995-0425"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BRENNER",
        "first_name": "KARL",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301067854",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kathleen Ann Brennan, DDS
• Lindsay R Brennan, MSW
• Patricia M Brennan, CD(DONA), PCD(DONA)
• Stephanie Brennan
• Dean Elliot Brenner, MD
• Michael Joseph Brenner, PHARM.D.
• Ashley Ann Brent, MD
• Christine M Brent, M.D.
• Eduardo Bresciani, DDS
• Katherine Rose Bresky, LMSW

• Internal Medicine Physician in Ann Arbor, MI
• Providers in Ann Arbor, MI by specialty
• Internal Medicine Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.