Joseph Ivan Baker

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

CW024940 Issued in PA

Practice address

435 W 4TH St
Williamsport, PA 17701-6001

Phone

(570) 322-7873

NPI assigned

Aug 22, 2022

Last updated

Jun 10, 2025By 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 PA

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

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.

• Geisinger Clinic

  • Family Medicine Physician
  • Danville, PA
  • NPI 1366493868
  Medicare reassignment NPD
• Geisinger-HM Joint Venture, LLC

  dba Geisinger Medical Clinic Lock Haven

  • Family Medicine Physician
  • Lock Haven, PA
  • NPI 1144876137
  Medicare reassignment NPD
• Geisinger Clinic

  • Diagnostic Radiology Physician
  • Danville, PA
  • NPI 1558313023
  NPD
• Geisinger Clinic

  dba PrimeMed Medical Grp Dunmore in collaboration w/Geisinger Clinic

  • Family Medicine Physician
  • Dunmore, PA
  • NPI 1821405408
  NPD
• Geisinger-HM Joint Venture, LLC

  • Family Medicine Physician
  • Williamsport, PA
  • NPI 1073075909
  NPD
• Geisinger-HM Joint Venture, LLC

  dba GMG Lycoming Family Practice

  • Family Medicine Physician
  • Montoursville, PA
  • NPI 1740836808
  NPD

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

{
    "created_epoch": "1661126400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749513600000",
    "number": "1235857582",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "435 W 4TH ST",
            "city": "WILLIAMSPORT",
            "state": "PA",
            "postal_code": "177016001",
            "telephone_number": "570-322-7873"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "435 W 4TH ST",
            "city": "WILLIAMSPORT",
            "state": "PA",
            "postal_code": "177016001",
            "telephone_number": "570-322-7873"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BAKER",
        "first_name": "JOSEPH",
        "middle_name": "IVAN",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2022-08-22",
        "last_updated": "2025-06-10",
        "certification_date": "2025-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "PA",
            "license": "SW137505",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "PA",
            "license": "CW024940",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Bradley Scott Bailey, MD
• Carol McCarty Bailey, L.S.W.
• John H Bailey Jr., MD
• Laura Elaine Bailey, CRNP
• Sarah Bailey
• Kayla Baker, BS
• Rachel A Baker
• Rebecca Davis Baker, P.T.
• Sheryl Baker
• Julie Lynn Bakley, LCSW

• Clinical Social Worker in Williamsport, PA
• Providers in Williamsport, PA by specialty
• Clinical Social Worker in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.