Individual provider Active NPI

Ellen Louise Olek, FNP-BC

  • Family Nurse Practitioner
  • Neenah, WI
National Provider Identifier
1700309234
Registry record updated Jul 11, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
209019307 Issued in IL
Practice address
130 2ND Street
Theda Clark Medical Plaza
Neenah, WI 54956-2883
Phone
(920) 831-5050
Fax
(920) 729-2104
NPI assigned
Jul 17, 2017
Last updated
Jul 11, 2023By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 11, 2023

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X RN270559 GA
Family Nurse Practitioner 363LF0000X 9062 WI
Family Nurse Practitioner 363LF0000X 209019307 IL Primary

Addresses

Primary practice location

130 2ND Street
Theda Clark Medical Plaza
Neenah, WI 54956-2883

Mailing address

604 32ND St
Rock Island, IL 61201-2029
Phone (630) 217-8686

Other practice location 1

211 Bobby Jones Expy Ste C
Martinez, GA 30907-5253
Phone (706) 860-3355

Other practice location 2

3880 Salem Lake Dr Ste F
Long Grove, IL 60047-5292
Phone (847) 719-2220

Other practice location 3

820 E Grant St
Appleton, WI 54911-3483
Phone (920) 831-5050

Other identifiers 1

IdentifierTypeStateIssuer
209019307MedicaidIL

Other names 1

  • Ellen Louise Hemmer Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190827003370 IL Practitioner - Nurse Practitioner 2961775564 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Karefirst Illinois PCGroup PAC ID 5496992034, 12 clinicians
Select Rehabilitation, LLCGroup PAC ID 9032020490, 1,935 clinicians

Practice addresses (Care Compare)

2170 W Navajo Dr
Freeport, IL 61032-0010
Phone (815) 233-2400

2600 Compass Rd
Glenview, IL 60026-8001

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
RN270559GAMDFamily Nurse Practitioner
209019307ILMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Harmonycares Complete Health Services, PLLC CurrentSince Dec 1, 2025 Accepting new patients
Vpa PC Current Accepting new patients
Best Practices Inpatient Care, LTD CurrentSince Jan 1, 2020 Accepting new patients
Best Practices Inpatient Care,LTD CurrentSince Jan 1, 2020 Accepting new patients
Karefirst Illinois PC CurrentSince Sep 1, 2025 Accepting new patients
Vpa PC CurrentSince Sep 14, 2025 Accepting new patients
Best Practices Inpatient Care, LTD. Current Accepting new patients
Vpa PC CurrentSince Sep 14, 2025 Accepting new patients

Locations

800 W Central Rd
Arlington Hts, IL 60005
Phone (847) 618-6150

106 Barrington Commons Ct
Unit 1790
Barrington, IL 60011
Phone (847) 719-2220

2170 W Navajo Dr
Freeport, IL 61032
Phone (815) 233-2400

1010 S Logan St
Lena, IL 61048
Phone (815) 369-4561

3880 Salem Lake Dr
Ste F
Long Grove, IL 60047
Phone (847) 719-2220

6631 N Milwaukee Ave
Niles, IL 60714
Phone 84723561303

Organizations & group practices 9

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.

NPI Registry JSON

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

{
    "created_epoch": "1500249600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1689033600000",
    "number": "1700309234",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "604 32ND ST",
            "city": "ROCK ISLAND",
            "state": "IL",
            "postal_code": "612012029",
            "telephone_number": "630-217-8686"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "130 2ND STREET",
            "address_2": "THEDA CLARK MEDICAL PLAZA",
            "city": "NEENAH",
            "state": "WI",
            "postal_code": "549562883",
            "telephone_number": "920-831-5050",
            "fax_number": "920-729-2104"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "211 Bobby Jones Expy Ste C",
            "address_purpose": "LOCATION",
            "city": "Martinez",
            "state": "GA",
            "postal_code": "309075253",
            "country_code": "US",
            "telephone_number": "706-860-3355",
            "fax_number": "706-860-8765",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3880 Salem Lake Dr Ste F",
            "address_purpose": "LOCATION",
            "city": "Long Grove",
            "state": "IL",
            "postal_code": "600475292",
            "country_code": "US",
            "telephone_number": "847-719-2220",
            "fax_number": "847-719-2265",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "820 E Grant St",
            "address_purpose": "LOCATION",
            "city": "Appleton",
            "state": "WI",
            "postal_code": "549113483",
            "country_code": "US",
            "telephone_number": "920-831-5050",
            "fax_number": "920-738-6400",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OLEK",
        "first_name": "ELLEN",
        "middle_name": "LOUISE",
        "credential": "FNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-07-17",
        "last_updated": "2023-07-11",
        "certification_date": "2023-07-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "GA",
            "license": "RN270559",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "WI",
            "license": "9062",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IL",
            "license": "209019307",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "209019307",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ELLEN",
            "last_name": "HEMMER",
            "middle_name": "LOUISE",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Neenah, WI

Sources for this page

Verify at the official NPI Registry.