NPIMap

Individual provider Active NPI

Christian M Mendez, MD

  • Gastroenterology Physician
  • Eau Claire, WI
National Provider Identifier
1528051554
Registry record updated Sep 9, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
61111-20 Issued in WI
Practice address
1221 Whipple St
Eau Claire, WI 54703
Phone
(715) 838-5222
NPI assigned
Aug 24, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 9, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 35838 KY
Gastroenterology Physician 207RG0100X 61111-20 WI Primary
Gastroenterology Physician 207RG0100X M8835 TX

Addresses

Primary practice location

1221 Whipple St
Eau Claire, WI 54703

Mailing address

PO Box 860912
Minneapolis, MN 55486-0912
Phone (507) 284-2511

Other practice location 1

733 W Clairemont Ave
Eau Claire, WI 54701-6101
Phone (715) 838-5222

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address cmendez23772@ehrdirect.mayoclinicmsg.org

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20130823001002 WI Practitioner - Gastroenterology 6406831916 Reassigns benefits to 7 organizations

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Other, 1996
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mayo Clinic Health System-Northwest Wisconsin Region IncGroup PAC ID 4385553627, shared by 21 NPIs, 797 clinicians

Practice addresses (Care Compare)

1400 Bellinger St
Eau Claire, WI 54703-5222
Phone (715) 838-5222

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy95
Upper gastrointestinal (GI) endoscopy for acid reflux79

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
61111-20WIMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. Current Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. Current Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. CurrentSince Jan 1, 2017 Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. Current Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. CurrentSince Jan 1, 2017 Accepting new patients
University of Texas Medical Branch, Austin Initiatives at Utmb Past Accepting new patients

Locations

200 1st St SW
Rochester, MN 55905
Phone (507) 266-4850

1222 E Woodland Ave
Barron, WI 54812
Phone (715) 537-3166

1501 Thompson St
Bloomer, WI 54724
Phone (715) 568-2000

1400 Bellinger St
Eau Claire, WI 54703
Phone (715) 838-3311

733 W Clairemont Ave
Eau Claire, WI 54701
Phone (715) 838-3806

1221 Whipple St
Eau Claire, WI 54703
Phone (715) 831-0100

800 West Ave S
La Crosse, WI 54601
Phone (608) 372-5951

2321 Stout Rd
Menomonie, WI 54751
Phone (715) 235-5531

2409 Stout Rd
Menomonie, WI 54751
Phone (715) 231-3937

13025 8th St
Osseo, WI 54758
Phone (715) 597-2575

Interoperability endpoints

  • Direct secure messaging: cmendez23772@ehrdirect.mayoclinicmsg.org

Organizations & group practices 10

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.

Hospital & facility affiliations 4

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": "1124841600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757376000000",
    "number": "1528051554",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 860912",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554860912",
            "telephone_number": "507-284-2511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1221 WHIPPLE ST",
            "city": "EAU CLAIRE",
            "state": "WI",
            "postal_code": "54703",
            "telephone_number": "715-838-5222"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "733 W Clairemont Ave",
            "address_purpose": "LOCATION",
            "city": "Eau Claire",
            "state": "WI",
            "postal_code": "547016101",
            "country_code": "US",
            "telephone_number": "715-838-5222",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MENDEZ",
        "first_name": "CHRISTIAN",
        "middle_name": "M",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-24",
        "last_updated": "2025-09-09",
        "certification_date": "2025-09-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "KY",
            "license": "35838",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "WI",
            "license": "61111-20",
            "primary": true
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "TX",
            "license": "M8835",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "cmendez23772@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "1221 Whipple St",
            "city": "Eau Claire",
            "state": "WI",
            "country_code": "US",
            "postal_code": "54703",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Eau Claire, WI

Sources for this page

Verify at the official NPI Registry.