Individual provider Active NPI

Alexander M. Villareal, M.D.

  • Sleep Medicine (Internal Medicine) Physician
  • La Crosse, WI
National Provider Identifier
1609094457
Registry record updated Apr 29, 2016
On this page

Key facts

NPPES NPI Registry
Primary specialty
Sleep Medicine (Internal Medicine) PhysicianTaxonomy code 207RS0012X
License
57998 Issued in WI
Practice address
1836 South Ave
La Crosse, WI 54601-5429
Phone
(608) 782-7300
NPI assigned
Apr 24, 2007
Last updated
Apr 29, 2016By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 29, 2016

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X MD431468 PA
Sleep Medicine (Internal Medicine) Physician 207RS0012X MD431468 PA
Sleep Medicine (Internal Medicine) Physician 207RS0012X 57998 WI Primary

Addresses

Primary practice location

1836 South Ave
La Crosse, WI 54601-5429

Mailing address

1836 South Ave
La Crosse, WI 54601-5429
Phone (608) 782-7300

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20130123000568 WI Practitioner - Sleep MedicinePractitioner - Internal Medicine 1658462445 Reassigns benefits to 22 organizations

Care Compare profile

Medicare Care Compare
Specialty
Sleep MedicineAlso: Internal Medicine
Education
Other, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Southwest Health Center IncGroup PAC ID 3072427772, 110 clinicians
Gundersen Clinic LTDGroup PAC ID 9638082779, 422 clinicians

Practice addresses (Care Compare)

1400 Eastside Rd
Platteville, WI 53818-9800
Phone 60834823312263

1836 S Ave
La Crosse, WI 54601-5429
Phone (608) 783-7300

407 S Main St
Viroqua, WI 54665-2100
Phone (608) 637-3195

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD431468PAMDSleep Medicine (Internal Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Bellin Memorial Hospital Inc Internal Medicine CurrentSince Oct 1, 2024 Accepting new patients
Gundersen Lutheran Express Care, Inc CurrentSince Oct 4, 2021 Accepting new patients
Tri-County Memorial Hospital, Inc. CurrentSince Oct 21, 2019 Accepting new patients
St Luke's Methodist Hospital Current Accepting new patients
St. Joseph's Health Services, Inc. Current Accepting new patients
Oconto Hospital & Medical Center Inc CurrentSince Oct 1, 2024 Accepting new patients
Tri-County Memorial Hospital, Inc. CurrentSince Oct 21, 2019 Accepting new patients
Oconto Hospital & Medical Center, Inc. CurrentSince Oct 1, 2024 Accepting new patients
Tomah Memorial Hospital Inc CurrentSince Dec 1, 2025 Accepting new patients
Tomah Memorial Hospital Inc CurrentSince Feb 10, 2020 Accepting new patients
Bellin Memorial Hospital Inc CurrentSince Oct 1, 2024 Accepting new patients
Gundersen Lutheran Medical Center Inc Current Accepting new patients
Black River Health Inc CurrentSince Jan 1, 2024 Accepting new patients
Grant Regional Health Center, Inc. Current Accepting new patients
Southwest Health Center, Inc. CurrentSince Dec 25, 2016 Accepting new patients
Oconto Hospital & Medical Center Inc Current Accepting new patients
Gundersen Lutheran Medical Center Inc CurrentSince May 23, 2016 Accepting new patients
Tri-County Memorial Hospital, Inc. Current Accepting new patients
Reedsburg Area Medical Center Inc CurrentSince Dec 25, 2016 Accepting new patients
Reedsburg Area Medical Center, Inc. CurrentSince Dec 25, 2016 Accepting new patients
Memorial Hospital of Boscobel CurrentSince Dec 12, 2017 Accepting new patients
Vernon Memorial Healthcare, Inc. CurrentSince Jul 23, 2024 Accepting new patients
Southwest Health Center, Inc. CurrentSince Dec 25, 2016 Accepting new patients
Gundersen Clinic, LTD. CurrentSince Oct 4, 2021 Accepting new patients
Bellin Memorial Hospital Inc Current Accepting new patients
Grant Regional Health Center, Inc CurrentSince Jun 1, 2022 Accepting new patients
Saint Elizabeths Hospital of Wabasha Inc CurrentSince Aug 1, 2023 Accepting new patients
Moundview Memorial Hospital & Clinics, Inc. CurrentSince Jul 20, 2020 Accepting new patients
Grant Regional Health Center, Inc CurrentSince Jun 1, 2022 Accepting new patients
St. Joseph's Health Services, Inc. CurrentSince Oct 21, 2019 Accepting new patients
Moundview Memorial Hospital & Clinics, Inc Internal Medicine CurrentSince Jul 20, 2020 Accepting new patients
Memorial Hospital of Boscobel CurrentSince Dec 12, 2017 Accepting new patients
Black River Health Inc CurrentSince Jan 1, 2024 Accepting new patients
Southwest Health Center, Inc CurrentSince Dec 1, 2025 Accepting new patients
Gundersen Clinic LTD Current Accepting new patients
Gundersen Lutheran Medical Center, Inc CurrentSince May 23, 2016 Accepting new patients
Reedsburg Area Medical Center, Inc. CurrentSince Dec 1, 2025 Accepting new patients
Saint Elizabeths Hospital of Wabasha Inc CurrentSince Aug 1, 2023 Accepting new patients
Tomah Memorial Hospital Inc CurrentSince Feb 10, 2020 Accepting new patients
Gundersen Lutheran Medical Center, Inc. Past Accepting new patients
Geisinger Community Health Services PastSince Aug 1, 2007 Accepting new patients

Locations

1200 Grant Blvd W
Wabasha, MN 55981
Phone (651) 565-4531

711 W Adams St
Blk River Fls, WI 54615
Phone (715) 284-1302

205 Parker St
Boscobel, WI 53805
Phone (608) 375-4112

402 W Lake St
Friendship, WI 53934
Phone (608) 339-3331

744 S Webster Ave
Green Bay, WI 54301
Phone (920) 433-6025

1836 South Ave
La Crosse, WI 54601
Phone (608) 788-8102

1910 South Ave
La Crosse, WI 54601
Phone (608) 775-2287

507 S Monroe St
Lancaster, WI 53813
Phone (608) 723-2131

820 Arbutus Ave
Oconto, WI 54153
Phone (920) 835-1100

1400 Eastside Rd
Platteville, WI 53818
Phone (608) 342-4712

610 E Taylor St
Prairie du Chien, WI 53821
Phone (608) 326-6466

1104 21st St
Reedsburg, WI 53959
Phone (608) 524-4303

2000 N Dewey Ave
Reedsburg, WI 53959
Phone (608) 524-6487

501 Gopher Dr
Tomah, WI 54660
Phone (608) 371-2181

407 S Main St
Viroqua, WI 54665
Phone (608) 637-3195

507 S Main St
Viroqua, WI 54665
Phone (608) 637-2101

18601 Lincoln St
Whitehall, WI 54773
Phone (715) 538-1712

Interoperability endpoints

  • Direct secure messaging: avillareal217446@direct.emplifyhealth.org
  • Direct secure messaging: avillareal656336@direct.unitypoint.org

Organizations & group practices 41

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.

View all 41

Hospital & facility affiliations 12

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

NPI Registry JSON

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

{
    "created_epoch": "1177372800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1461888000000",
    "number": "1609094457",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1836 SOUTH AVE",
            "city": "LA CROSSE",
            "state": "WI",
            "postal_code": "546015429",
            "telephone_number": "608-782-7300"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1836 SOUTH AVE",
            "city": "LA CROSSE",
            "state": "WI",
            "postal_code": "546015429",
            "telephone_number": "608-782-7300"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VILLAREAL",
        "first_name": "ALEXANDER",
        "middle_name": "M.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-04-24",
        "last_updated": "2016-04-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "MD431468",
            "primary": false
        },
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "PA",
            "license": "MD431468",
            "primary": false
        },
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "WI",
            "license": "57998",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in La Crosse, WI

Sources for this page

Verify at the official NPI Registry.