Jake Lee Mullenbach, DO

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

DO-55611 Issued in IA

Practice address

1631 4TH St SW # 114B
Mason City, IA 50401-1612

Phone

(641) 428-6000

NPI assigned

Apr 5, 2023

Last updated

Aug 30, 2026By the provider in NPPES

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 IN

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

Medicare enrollment (NPD)

Enrolled

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

{
    "created_epoch": "1680652800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788048000000",
    "number": "1396440574",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1631 4TH ST SW # 114B",
            "city": "MASON CITY",
            "state": "IA",
            "postal_code": "504011612",
            "telephone_number": "641-428-6000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1631 4TH ST SW # 114B",
            "city": "MASON CITY",
            "state": "IA",
            "postal_code": "504011612",
            "telephone_number": "641-428-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MULLENBACH",
        "first_name": "JAKE",
        "middle_name": "LEE",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-04-05",
        "last_updated": "2026-08-30",
        "certification_date": "2026-08-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IA",
            "license": "DO-55611",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Maureen Akwi Muke, MD
• Umer Mukhtar, MD
• Timothy L Mulholland, M.D.
• Sugianawaty Mulia, RD, LD
• Brett Mulkey, DO
• Susan A Mullenbach, ARNP
• Emily Evans Murphy
• John Francis Murphy, RPH
• Sohida Muslem
• Grace Mutinda, MD

• Internal Medicine Physician in Mason City, IA
• Providers in Mason City, IA by specialty
• Internal Medicine Physician in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 30, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.