Individual provider Active NPI

Holly B Slonina, LMSW-CC

  • Social Worker
  • Lewiston, ME
National Provider Identifier
1427688324
Registry record updated Mar 10, 2020
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
MC18058 Issued in ME
Practice address
100 Campus Ave Ste a&B
Lewiston, ME 04240-6040
Phone
(207) 755-3434
Fax
(207) 755-3474
NPI assigned
Jan 20, 2020
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 10, 2020

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Social Worker 104100000X MC18058 ME Primary

Addresses

Primary practice location

100 Campus Ave Ste a&B
Lewiston, ME 04240-6040

Mailing address

PO Box 7291
Lewiston, ME 04243-7291
Phone (207) 777-8950

Other names 1

  • Holly E Balvin Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ME
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

Enrollment IDStateProvider typePAC IDDetails
I20260304001109 ME Practitioner - Clinical Social Worker 5496237950 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Clinical Social Worker
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Kennebec Valley Mental Health CenterGroup PAC ID 7113829383, 68 clinicians

Practice addresses (Care Compare)

67 Eustis Pkwy
Waterville, ME 04901-5173
Phone (207) 873-2136

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
MC18058MEMDSocial Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Kennebec Valley Mental Health Center CurrentSince Jan 13, 2026 Accepting new patients

Locations

67 Eustis Pkwy
Waterville, ME 04901
Phone (207) 660-4549

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1579478400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1583798400000",
    "number": "1427688324",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7291",
            "city": "LEWISTON",
            "state": "ME",
            "postal_code": "042437291",
            "telephone_number": "207-777-8950",
            "fax_number": "207-777-8800"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 CAMPUS AVE STE A&B",
            "city": "LEWISTON",
            "state": "ME",
            "postal_code": "042406040",
            "telephone_number": "207-755-3434",
            "fax_number": "207-755-3474"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SLONINA",
        "first_name": "HOLLY",
        "middle_name": "B",
        "credential": "LMSW-CC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-01-20",
        "last_updated": "2020-03-10",
        "certification_date": "2020-03-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "ME",
            "license": "MC18058",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "HOLLY",
            "last_name": "BALVIN",
            "middle_name": "E",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Lewiston, ME

Sources for this page

Verify at the official NPI Registry.