Calvin D Ruff, LMSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

6801114624 Issued in MI

Practice address

625 Harrison St
Kalamazoo, MI 49007-3681

Phone

(269) 323-1954

Fax

(269) 276-0201

NPI assigned

Jan 4, 2013

Sex

Male

Sole proprietor

Yes

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: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Social Worker

Education

Other, 2017

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 and National Provider Directory roles.

• Psychological Insights, LLC

  • Clinical Psychologist
  • Holland, MI
  • NPI 1053172239
  Medicare reassignment NPD
• Mental Health Specialty Group PA

  dba Rula Health

  • Mental Health Counselor
  • Durham, NC
  • NPI 1801472634

  MI

  Medicare reassignment NPD
• Destiny Wellness & Consulting PLLC

  • Clinical Social Worker
  • Kalamazoo, MI
  • NPI 1811820087
  NPD Authorized official
• Synergy Health Center

  • Community/Behavioral Health Agency
  • Kalamazoo, MI
  • NPI 1568500023
  Medicare reassignment
• Way to Thrive

  • Clinical Psychologist
  • Grand Rapids, MI
  • NPI 1043143365
  NPD (past)

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

{
    "created_epoch": "1357257600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770163200000",
    "number": "1831436336",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1327 HOMECREST AVE",
            "city": "KALAMAZOO",
            "state": "MI",
            "postal_code": "490014380",
            "telephone_number": "269-598-5921"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "625 HARRISON ST",
            "city": "KALAMAZOO",
            "state": "MI",
            "postal_code": "490073681",
            "telephone_number": "269-323-1954",
            "fax_number": "269-276-0201"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RUFF",
        "first_name": "CALVIN",
        "middle_name": "D",
        "credential": "LMSW",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2013-01-04",
        "last_updated": "2026-02-04",
        "certification_date": "2026-02-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MI",
            "license": "6801114624",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Emily Alyse Rudolph, MSN
• Laurie Scheid Rudolph, MA, LPC, NCC, CAAC
• Austin Rue, MD
• Bruce Ruekberg, MD
• Rachel Ruf, RN
• Amelia Joy Ruger, RDH
• Gayle Anne Ruggiero, M.D.
• Kristen Elizabeth Ruggles, OTR/L
• Emily K Ruimveld, NP
• Zachary A Rumlow

• Clinical Social Worker in Kalamazoo, MI
• Providers in Kalamazoo, 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 Feb 4, 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.