NPIMap

Individual provider Active NPI

Nicholas Christian Otten, MD

  • Hospitalist Physician
  • Burlington, WI
National Provider Identifier
1013277714
Registry record updated Jul 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
036136062 Issued in IL
Practice address
252 McHenry St
Burlington, WI 53105-1828
Phone
(262) 767-6000
NPI assigned
May 29, 2012
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 23, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X 036136062 IL Primary
Family Medicine Physician 207Q00000X 036136062 IL
Hospitalist Physician 208M00000X 64397 WI
Family Medicine Physician 207Q00000X 64397 WI

Addresses

Primary practice location

252 McHenry St
Burlington, WI 53105-1828

Mailing address

252 McHenry St
Burlington, WI 53105-1828
Phone (262) 767-6000

Other practice location 1

1045 W Stephenson St
Freeport, IL 61032-4864
Phone (815) 599-6000

Electronic endpoints 2

TypeEndpointUseAffiliation
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Direct Messaging Address notten152636@direct.myadvocateaurora.org Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, IL2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20150806010351 WI Practitioner - Family Practice 2264651108 Reassigns benefits to 10 organizations
I20190708001553 IL Practitioner - Family PracticePractitioner - Hospitalist 2264651108 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family PracticeAlso: Hospitalist
Education
Other, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
CGH Medical CenterGroup PAC ID 6103723267, 199 clinicians
Freeport Memorial HospitalGroup PAC ID 8426958232, 168 clinicians
Columbia St Marys Hospital Milwaukee IncGroup PAC ID 5890604722, 311 clinicians
Aspirus Wausau Hospital IncGroup PAC ID 6406757442, 242 clinicians
Ascension Medical Group-Southeast Wisconsin IncGroup PAC ID 8628980943, 551 clinicians

Practice addresses (Care Compare)

100 E Le Fevre Rd
Sterling, IL 61081-1278
Phone (815) 625-0400

1045 W Stephenson St
Freeport, IL 61032-4864
Phone (815) 599-6000

2323 N Lake Dr
Milwaukee, WI 53211-4508
Phone (414) 585-1000

333 Pine Ridge Blvd
Wausau, WI 54401-4102
Phone (715) 847-2866

3801 Spring St
Mount Pleasant, WI 53405-1667
Phone (262) 687-4011

Hospital & facility affiliations

  • FHN Memorial Hospital Hospital, Freeport, IL, CCN 140160
  • Ascension All Saints Hospital Hospital, Racine, WI, CCN 520096
  • Ascension SE Wisconsin Hospital Hospital, Milwaukee, WI, CCN 520136
  • Aspirus Wausau Hospital Hospital, Wausau, WI, CCN 520030

Merit-based Incentive Payment System (MIPS)

Final score
87.15 of 100Reported as group
Quality
73.7
Promoting interoperability
100
Improvement activities
40
Cost
76.71

Merit-based Incentive Payment System (MIPS)

Final score
54.29 of 100Reported as group
Quality
20.24
Promoting interoperability
100
Improvement activities
0
Cost
77.39

Merit-based Incentive Payment System (MIPS)

Final score
87.08 of 100Reported as group
Quality
86.25
Improvement activities
40
Cost
77.17

Merit-based Incentive Payment System (MIPS)

Final score
87.84 of 100Reported as group
Quality
86.21
Promoting interoperability
100
Improvement activities
40
Cost
73.25

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036136062ILMDHospitalist Physician
64397WIMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Aspirus Merrill Hospital & Clinics, Inc. CurrentSince Dec 1, 2023 Accepting new patients
Aspirus Riverview Hospital & Clinics, Inc. CurrentSince Dec 1, 2023 Accepting new patients
Aspirus Riverview Hospital & Clinics, Inc. Current Accepting new patients
Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc. CurrentSince Dec 1, 2023 Accepting new patients
Aspirus Wausau Hospital, Inc. CurrentSince Dec 1, 2023 Accepting new patients
The Howard Young Medical Center, Inc. Hospitalist CurrentSince Dec 1, 2023 Accepting new patients
Impact Physician Group, Wisconsin LLC CurrentSince Mar 6, 2024 Accepting new patients
Aspirus Wausau Hospital, Inc. CurrentSince Dec 1, 2023 Accepting new patients
Columbia St. Mary'S Hospital Milwaukee Inc CurrentSince Jun 24, 2024 Accepting new patients
Aspirus Riverview Hospital & Clinics, Inc. CurrentSince Dec 1, 2023 Accepting new patients
Ascension Medical Group-Southeast Wisconsin Inc Family Medicine CurrentSince Dec 25, 2023 Accepting new patients
Ascension Medical Group-Fox Valley Wisconsin, Inc CurrentSince Mar 24, 2024 Accepting new patients
Freeport Memorial Hospital CurrentSince Jan 23, 2024 Accepting new patients
Aspirus Wausau Hospital, Inc. Current Accepting new patients
Ascension Medical Group-Fox Valley Wisconsin, Inc CurrentSince Mar 24, 2024 Accepting new patients
Aspirus Merrill Hospital & Clinics, Inc. CurrentSince Dec 1, 2023 Accepting new patients
Columbia St. Mary'S Hospital Milwaukee, Inc Family Medicine CurrentSince Jun 24, 2024 Accepting new patients
Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc. CurrentSince Dec 1, 2023 Accepting new patients
The Howard Young Medical Center, Inc. Current Accepting new patients
CGH Medical Center CurrentSince Jan 4, 2024 Accepting new patients
CGH Medical Center CurrentSince Jan 4, 2024 Accepting new patients

Locations

29980 Network Pl
Chicago, IL 60673

1045 W Stephenson St
Freeport, IL 61032
Phone (815) 599-6105

1809 Locust St
Sterling, IL 61081
Phone (815) 564-4002

100 E Lefevre Rd
Sterling, IL 61081
Phone (815) 625-0400

1506 S Oneida St
Appleton, WI 54915
Phone (920) 730-4950

1501 S Madison St
Appleton, WI 54915
Phone (920) 730-4435

13950 W Capitol Dr
Brookfield, WI 53005
Phone (414) 302-5400

252 McHenry St
Burlington, WI 53105
Phone (262) 763-2411

400 W Glen St
Crandon, WI 54520
Phone (715) 478-3318

W3985 Highway NN
Elkhorn, WI 53121
Phone (262) 741-2000

601 S Center Ave
Merrill, WI 54452
Phone (715) 536-5511

3200 S 103rd St
Milwaukee, WI 53227
Phone (414) 440-0500

2323 N Lake Dr
Milwaukee, WI 53211
Phone (414) 291-1000

3801 Spring St
Mount Pleasant, WI 53405
Phone (262) 636-4011

2700 W 9th Ave
Oshkosh, WI 54904
Phone (920) 223-0220

2251 N Shore Dr
Ste 100
Rhinelander, WI 54501
Phone (715) 361-2074

900 Illinois Ave
Stevens Point, WI 54481
Phone (715) 342-7500

401 W Mohawk Dr
Ste 100
Tomahawk, WI 54487
Phone (715) 453-7700

333 Pine Ridge Blvd
Wausau, WI 54401
Phone (715) 847-2160

201 N Mayfair Rd
Fl 2
Wauwatosa, WI 53226
Phone (414) 771-8228

420 Dewey St
Wisconsin Rapids, WI 54494
Phone (715) 421-7474

240 Maple St
Woodruff, WI 54568
Phone (715) 356-8000

Interoperability endpoints

  • Direct secure messaging: notten152636@direct.myadvocateaurora.org
  • FHIR API: https://api.platform.athenahealth.com/10114/brand/2/csg/1/fhir/r4

Organizations & group practices 21

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.

View all 21

Hospital & facility affiliations 14

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 14

NPI Registry JSON

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

{
    "created_epoch": "1338249600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784764800000",
    "number": "1013277714",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "252 MCHENRY ST",
            "city": "BURLINGTON",
            "state": "WI",
            "postal_code": "531051828",
            "telephone_number": "262-767-6000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "252 MCHENRY ST",
            "city": "BURLINGTON",
            "state": "WI",
            "postal_code": "531051828",
            "telephone_number": "262-767-6000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1045 W Stephenson St",
            "address_purpose": "LOCATION",
            "city": "Freeport",
            "state": "IL",
            "postal_code": "610324864",
            "country_code": "US",
            "telephone_number": "815-599-6000",
            "fax_number": "815-599-7974",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OTTEN",
        "first_name": "NICHOLAS",
        "middle_name": "CHRISTIAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-05-29",
        "last_updated": "2026-07-23",
        "certification_date": "2026-07-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "IL",
            "license": "036136062",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IL",
            "license": "036136062",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "WI",
            "license": "64397",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WI",
            "license": "64397",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "252 McHenry St",
            "city": "Burlington",
            "state": "WI",
            "country_code": "US",
            "postal_code": "531051828",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "notten152636@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "252 McHenry St",
            "city": "Burlington",
            "state": "WI",
            "country_code": "US",
            "postal_code": "531051828",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Burlington, WI

Sources for this page

Verify at the official NPI Registry.