William Michael Geisler, MD

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

24652 Issued in AL

Practice address

619 19TH Street South
Birmingham, AL 35233

Phone

(205) 934-6600

NPI assigned

Jun 16, 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

Other identifiers 9

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in AL

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

Infectious DiseaseAlso: Internal Medicine

Education

University of Tennessee, HSC, College of Medicine, 1996

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Alabama Health Services Foundation, PCGroup PAC ID 1951213107, 2,784 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of Alabama Hospital Hospital, Birmingham, AL, CCN 010033

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: william.geisler.1@17358.direct.athenahealth.com
• Direct secure messaging: wgeisler@direct.uabmedicine.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.

• University of Alabama Health Services Foundation, PC.

  • Multi-Specialty Clinic/Center
  • Birmingham, AL
  • NPI 1093768723
  Medicare reassignment Care Compare group NPD
• University of Alabama at Birmingham

  dba UAB Health Center Montgomery

  • Internal Medicine Physician
  • Montgomery, AL
  • NPI 1184738478

  Infectious Disease

  Medicare reassignment NPD
• University of Alabama at Birmingham

  • General Acute Care Hospital
  • Birmingham, AL
  • NPI 1447145818
  NPD
• University of Alabama at Birmingham

  dba 1917 Clinic

  • Infusion Therapy Clinic/Center
  • Birmingham, AL
  • NPI 1861704934
  NPD
• University of Alabama at Birmingham

  • General Acute Care Hospital
  • Birmingham, AL
  • NPI 1154435824
  NPD (past)

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

• University of Alabama at Birmingham

  • General Acute Care Hospital
  • Birmingham, AL
  • NPI 1154435824
  Care Compare affiliation
• University of Alabama at Birmingham

  • General Acute Care Hospital
  • Birmingham, AL
  • NPI 1447145818
  Care Compare affiliation

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

{
    "created_epoch": "1150416000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1740224989",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 55310",
            "city": "BIRMINGHAM",
            "state": "AL",
            "postal_code": "352555310",
            "telephone_number": "205-731-9701"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "619 19TH STREET SOUTH",
            "city": "BIRMINGHAM",
            "state": "AL",
            "postal_code": "35233",
            "telephone_number": "205-934-6600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "619 19th St S",
            "address_purpose": "LOCATION",
            "city": "Birmingham",
            "state": "AL",
            "postal_code": "352331900",
            "country_code": "US",
            "telephone_number": "205-934-5191",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "619 19th St S",
            "address_purpose": "LOCATION",
            "city": "Birmingham",
            "state": "AL",
            "postal_code": "352331900",
            "country_code": "US",
            "telephone_number": "205-934-5191",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GEISLER",
        "first_name": "WILLIAM",
        "middle_name": "MICHAEL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-16",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "AL",
            "license": "24652",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "009930735",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "051510731",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "051510730",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "051517271",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "440003855",
            "state": "AL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "009903795",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "051511453",
            "state": "AL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "051551994",
            "state": "AL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "009997030",
            "state": "AL"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "wgeisler@direct.uabmedicine.org",
            "affiliation": "Y",
            "affiliationName": "University of Alabama Hospital",
            "address_1": "619 19th St S",
            "city": "Birmingham",
            "state": "AL",
            "country_code": "US",
            "postal_code": "352331900",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "wgeisler@direct.uabmedicine.org",
            "affiliation": "Y",
            "affiliationName": "University of Alabama Hospital",
            "address_1": "619 19th St S",
            "city": "Birmingham",
            "state": "AL",
            "country_code": "US",
            "postal_code": "352331900",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Bridgitte Lynette Gee, NURSE PRACTITIONER
• Kathleen E. Gee, M.D.
• Michael James Geer, MD
• Suzanne E Geerts, MS, RD
• Maria L Geisinger, DDS
• Rondi Gelbard
• David Geldmacher
• Meredith Gelpi
• Lauren Gendrich, CRNP
• Gene Denny and Co Inc (Pearle Vision)

• Infectious Disease Physician in Birmingham, AL
• Providers in Birmingham, AL by specialty
• Infectious Disease Physician in Alabama

• 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.