Individual provider Active NPI

Rajesh Santharam, MD

  • Gastroenterology Physician
  • Milwaukee, WI
National Provider Identifier
1447227129
Registry record updated Jan 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
42154-20 Issued in WI
Practice address
2801 W Kinnickinnic River Pkwy Ste 1080
Milwaukee, WI 53215-3689
Phone
(414) 908-6506
Fax
(414) 908-6510
NPI assigned
Mar 2, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 26, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 42154-20 WI Primary

Addresses

Primary practice location

2801 W Kinnickinnic River Pkwy Ste 1080
Milwaukee, WI 53215-3689

Mailing address

2801 W Kinnickinnic River Pkwy Ste 1080
Milwaukee, WI 53215-3689
Phone (414) 908-6506

Other identifiers 1

IdentifierTypeStateIssuer
34100500MedicaidWI

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
I20051208000862 WI Practitioner - GastroenterologyPractitioner - Internal Medicine 7315968088 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
GastroenterologyAlso: Internal Medicine
Education
Medical College of Wisconsin, 1998
Medicare assignment
May accept Medicare assignment
Group practices
Gastroenterology Specialists SCGroup PAC ID 3375626195, 29 clinicians
Gi Associates LLCGroup PAC ID 6103738562, 55 clinicians
Milwaukee Gi Specialists SCGroup PAC ID 8123930542, 15 clinicians

Practice addresses (Care Compare)

1033 N Mayfair Rd
Suite 101
Wauwatosa, WI 53226-3442
Phone (414) 454-0600

Hospital & facility affiliations

  • Waukesha Memorial Hospital Hospital, Waukesha, WI, CCN 520008
  • Ascension SE Wisconsin Hospital Hospital, Milwaukee, WI, CCN 520136
  • Oconomowoc Memorial Hospital Hospital, Oconomowoc, WI, CCN 520062

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy189
Upper gastrointestinal (GI) endoscopy for acid reflux144

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
42154-20WIMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Gi Associates LLC Gastroenterology CurrentSince Oct 1, 2007 Accepting new patients
Gastroenterology Specialists SC Gastroenterology CurrentSince Aug 25, 2025 Accepting new patients
Milwaukee Gi Specialists SC Gastroenterology CurrentSince Sep 18, 2017 Accepting new patients

Locations

19333 W North Ave
Brookfield, WI 53045
Phone (262) 785-2000

6200 W Bluemound Rd
Milwaukee, WI 53213
Phone (414) 479-3668

3033 S 27th St
Ste 202
Milwaukee, WI 53215

2801 W Kinnickinnic River Pkwy
Ste 1080
Milwaukee, WI 53215
Phone (414) 908-6506

240 Maple Ave
Ste 2220
Mukwonago, WI 53149

1185 Corporate Center Dr
Ste 120
Oconomowoc, WI 53066
Phone (262) 289-1024

1185 Corporate Center Dr
Ste 125
Summit, WI 53066
Phone (262) 567-3600

125 Hospital Dr
Watertown, WI 53098
Phone (920) 261-4210

1111 Delafield St
Ste 321
Waukesha, WI 53188
Phone (262) 446-0955

1111 Delafield St
Ste 322
Waukesha, WI 53188
Phone (262) 650-7322

725 American Ave
Waukesha, WI 53188
Phone (262) 544-2011

1033 N Mayfair Rd
Ste 101
Wauwatosa, WI 53226

9000 W Wisconsin Ave
Wauwatosa, WI 53226
Phone (414) 266-2625

Interoperability endpoints

  • Direct secure messaging: rsantharam9673@direct.phci.org

Organizations & group practices 3

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 5

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": "1141257600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769385600000",
    "number": "1447227129",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2801 W KINNICKINNIC RIVER PKWY STE 1080",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532153689",
            "telephone_number": "414-908-6506",
            "fax_number": "414-908-6510"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2801 W KINNICKINNIC RIVER PKWY STE 1080",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532153689",
            "telephone_number": "414-908-6506",
            "fax_number": "414-908-6510"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SANTHARAM",
        "first_name": "RAJESH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-02",
        "last_updated": "2026-01-26",
        "certification_date": "2026-01-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "WI",
            "license": "42154-20",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "34100500",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Milwaukee, WI

Sources for this page

Verify at the official NPI Registry.