Gerald M Machen, M.D.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

11516 Issued in AL

Practice address

1800 Al Highway 157
Cullman, AL 35058-1271

Phone

(256) 735-5075

Fax

(256) 735-5076

NPI assigned

Nov 15, 2005

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 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

Family Practice

Education

University of Alabama School of Medicine, 1983

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

CRMC Medical Group LLCGroup PAC ID 8729419874, 81 clinicians

Birmingham Internal Medicine Associates, LLCGroup PAC ID 1658341193, 123 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Cullman Regional Medical Center Hospital, Cullman, AL, CCN 010035

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gerald.machen.1@15135.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.

• Birmingham Internal Medicine Associates, LLC

  • Internal Medicine Physician
  • Birmingham, AL
  • NPI 1598796542

  Family Medicine

  Medicare reassignment Care Compare group NPD
• CRMC Medical Group LLC

  • Multi-Specialty Clinic/Center
  • Cullman, AL
  • NPI 1467083675
  Medicare reassignment Care Compare group NPD
• CRMC Medical Group LLC

  • Urgent Care Clinic/Center
  • Cullman, AL
  • NPI 1801427018
  NPD

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

• Cullman Regional Medical Center, Inc

  • General Acute Care Hospital
  • Cullman, AL
  • NPI 1114919339
  Care Compare affiliation

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

{
    "created_epoch": "1132012800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767139200000",
    "number": "1881676930",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 2895",
            "city": "CULLMAN",
            "state": "AL",
            "postal_code": "350562895",
            "telephone_number": "256-735-5044",
            "fax_number": "256-801-7626"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1800 AL HIGHWAY 157",
            "city": "CULLMAN",
            "state": "AL",
            "postal_code": "350581271",
            "telephone_number": "256-735-5075",
            "fax_number": "256-735-5076"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MACHEN",
        "first_name": "GERALD",
        "middle_name": "M",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-15",
        "last_updated": "2025-12-31",
        "certification_date": "2025-12-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "AL",
            "license": "11516",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael J Lunsford, M.D.
• Kemberly Ellis Luquire, RN
• Taylor A Luth, DPT, PT
• Haley Elizabeth Mabrey, MD
• Marsha Mabrey, RN
• Elizabeth Ann Madison
• Edward F. Mahan, MD
• Alexandra Blum Maksimowski, CRNP
• Katherine Mann, CRNP
• Sloan Nicole Mann

• Family Medicine Physician in Cullman, AL
• Providers in Cullman, AL by specialty
• Family Medicine Physician in Alabama

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