Individual provider Active NPI

Gabriel S Schaab, MD

  • Ophthalmology Physician
  • Monroe, WI
National Provider Identifier
1679739650
Registry record updated Dec 22, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Ophthalmology PhysicianTaxonomy code 207W00000X
License
57278 Issued in WI
Practice address
515 22ND Ave
Monroe, WI 53566-1569
Phone
(608) 324-2000
NPI assigned
Jul 30, 2008
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 22, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Ophthalmology Physician 207W00000X 57278 WI Primary
Ophthalmology Physician 207W00000X 036133408 IL

Addresses

Primary practice location

515 22ND Ave
Monroe, WI 53566-1569

Mailing address

515 22ND Ave
Monroe, WI 53566-1569
Phone (608) 324-2159

Other practice location 1

1301 Kiwanis Dr
Freeport, IL 61032-6907
Phone (608) 324-2000

Other practice location 2

2880 University Ave
Madison, WI 53705-3644
Phone (608) 263-7171

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address gschaab5720@direct.monroeclinic.org Direct
FHIR URL https://webproxyprd.monroeclinic.org/FHIR-PRD/api/FHIR/DSTU2/ Other

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, IL2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20120918000195 WI Practitioner - Ophthalmology 8224286257 Reassigns benefits to 1 organization
I20130930000169 IL Practitioner - Ophthalmology 8224286257 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Ophthalmology
Education
Rush Medical College of Rush University, 2008
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
The Monroe Clinic, Inc.Group PAC ID 3072425495, shared by 7 NPIs, 199 clinicians

Practice addresses (Care Compare)

1110 S Park Blvd
Freeport, IL 61032-4659
Phone (815) 232-1105

2009 5TH St
Monroe, WI 53566-1546
Phone (608) 324-2000

Hospital & facility affiliations

  • The Monroe Clinic Hospital, Monroe, WI, CCN 520028
  • Lafayette Hospital and Clinics Hospital, Darlington, WI, CCN 521312

Procedures performed for Medicare patients

ProcedureNumber of procedures
Cataract surgery323

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
The Monroe Clinic, Inc. CurrentSince Aug 5, 2013 Accepting new patients
The Monroe Clinic, Inc. CurrentSince Aug 5, 2013 Accepting new patients
Medical Eye Services, LTD Ophthalmology CurrentSince Jul 18, 2016 Accepting new patients
The Monroe Clinic, Inc. CurrentSince Aug 5, 2013 Accepting new patients

Locations

1301 Kiwanis Dr
Freeport, IL 61032
Phone (815) 235-1406

3103 W Kunkle Blvd
Freeport, IL 61032
Phone (815) 233-0999

1110 S Park Blvd
Freeport, IL 61032
Phone (815) 232-1105

48 S Greenleaf St
Gurnee, IL 60031
Phone (847) 662-4016

600 Highland Ave
Madison, WI 53792
Phone (608) 263-0325

2009 5th St
Monroe, WI 53566
Phone (608) 324-1454

515 22nd Ave
Monroe, WI 53566
Phone (608) 324-1000

Interoperability endpoints

  • Direct secure messaging: gschaab407949@direct-ehr-ssmhc.com

Organizations & group practices 4

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 3

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": "1217376000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766361600000",
    "number": "1679739650",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "515 22ND AVE",
            "city": "MONROE",
            "state": "WI",
            "postal_code": "535661569",
            "telephone_number": "608-324-2159"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "515 22ND AVE",
            "city": "MONROE",
            "state": "WI",
            "postal_code": "535661569",
            "telephone_number": "608-324-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1301 Kiwanis Dr",
            "address_purpose": "LOCATION",
            "city": "Freeport",
            "state": "IL",
            "postal_code": "610326907",
            "country_code": "US",
            "telephone_number": "608-324-2000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2880 University Ave",
            "address_purpose": "LOCATION",
            "city": "Madison",
            "state": "WI",
            "postal_code": "537053644",
            "country_code": "US",
            "telephone_number": "608-263-7171",
            "fax_number": "608-226-5806",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SCHAAB",
        "first_name": "GABRIEL",
        "middle_name": "S",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-07-30",
        "last_updated": "2025-12-22",
        "certification_date": "2025-12-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "WI",
            "license": "57278",
            "primary": true
        },
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "IL",
            "license": "036133408",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "gschaab5720@direct.monroeclinic.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "gschaab5720@direct.monroeclinic.org",
            "address_1": "515 22nd Ave",
            "city": "Monroe",
            "state": "WI",
            "country_code": "US",
            "postal_code": "535661569",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://webproxyprd.monroeclinic.org/FHIR-PRD/api/FHIR/DSTU2/",
            "affiliation": "N",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "FHIR API",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCD",
            "address_1": "515 22nd Ave",
            "city": "Monroe",
            "state": "WI",
            "country_code": "US",
            "postal_code": "535661569",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Monroe, WI

Sources for this page

Verify at the official NPI Registry.