Benjamin Roger-Bigger Keaster

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

6801089840 Issued in MI

Practice address

120 E Main St
Spring Arbor, MI 49283-9701

Phone

(517) 262-6400

NPI assigned

Jul 9, 2025

Last updated

Jan 27, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in MI

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Social Worker

Education

Other, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Michigan Mental Health LLC

  • Social Worker
  • Spring Arbor, MI
  • NPI 1295626067
  Medicare reassignment NPD

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

{
    "created_epoch": "1752019200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769472000000",
    "number": "1710878798",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "173 HARMONY RD",
            "city": "SPRING ARBOR",
            "state": "MI",
            "postal_code": "492839703",
            "telephone_number": "517-262-6400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "120 E MAIN ST",
            "city": "SPRING ARBOR",
            "state": "MI",
            "postal_code": "492839701",
            "telephone_number": "517-262-6400"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9825 Spring Arbor Rd",
            "address_purpose": "LOCATION",
            "city": "Spring Arbor",
            "state": "MI",
            "postal_code": "492839619",
            "country_code": "US",
            "telephone_number": "517-258-2386",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "106 E Main St Rm 216",
            "address_purpose": "LOCATION",
            "city": "Spring Arbor",
            "state": "MI",
            "postal_code": "492839701",
            "country_code": "US",
            "telephone_number": "517-258-2386",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KEASTER",
        "first_name": "BENJAMIN",
        "middle_name": "ROGER-BIGGER",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-07-09",
        "last_updated": "2026-01-27",
        "certification_date": "2026-01-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "MI",
            "license": "6801089840",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MI",
            "license": "6801089840",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Joseph T Halsey
• Mathew S Harvey
• Matthew Hill
• Hometown Chiropractic Spring Arbor, PLLC (Hometown Chiropractic)
• Mallory Hurley, PT, DPT
• Robert L Kintigh, D.C.
• Jeanette Kovach
• Nikole Danielle Kutsch
• Alexis Rose Lape, M.S. CCC-SLP
• Dustin Lapp, LPC

• Clinical Social Worker in Spring Arbor, MI
• Providers in Spring Arbor, MI by specialty
• Clinical Social Worker in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 27, 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.