Individual provider Active NPI

Nimish Thaker, MD

  • Urology Physician
  • Ontario, CA
National Provider Identifier
1871541961
Registry record updated May 6, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Urology PhysicianTaxonomy code 208800000X
License
A74757 Issued in CA
Practice address
1791 E Holt Blvd Unit 101
Ontario, CA 91761-2118
Phone
(909) 460-0354
Fax
(909) 460-0367
NPI assigned
May 4, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 6, 2024

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Specialist 174400000X A747570 CA
Urology Physician 208800000X A74757 CA Primary

Addresses

Primary practice location

1791 E Holt Blvd Unit 101
Ontario, CA 91761-2118

Mailing address

1791 E Holt Blvd Unit 101
Ontario, CA 91761-2118
Phone (909) 460-0354

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, OR2 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
I20051121000261 CA Practitioner - Urology 2163441007 Reassigns benefits to 2 organizations
I20251021004262 OR Practitioner - Urology 2163441007 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Urology
Education
University of California, Geffen School of Medicine, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
AsanteGroup PAC ID 0547177321, 141 clinicians

Practice addresses (Care Compare)

1791 E Holt Blvd
Unit 101
Ontario, CA 91761-2118
Phone (909) 460-0354

2825 E Barnett Rd
Medford, OR 97504-8332
Phone (541) 789-7000

Hospital & facility affiliations

  • Asante Rogue Regional Medical Center Hospital, Medford, OR, CCN 380018
  • Asante Three Rivers Medical Center Hospital, Grants Pass, OR, CCN 380002

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A747570CAMDSpecialist
74757CAMDPharmacist
A74757CAMDUrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Department of State Hospitals Current Accepting new patients
Department of State Hospitals CurrentSince Oct 3, 2014 Accepting new patients
Asante CurrentSince Oct 1, 2025 Accepting new patients
Asante Three Rivers Medical Center, LLC CurrentSince Nov 17, 2025 Accepting new patients
Department of State Hospitals CurrentSince Oct 3, 2014 Accepting new patients
Thaker Urological Center, Inc. Specialist CurrentSince Jul 19, 2016 Accepting new patients
Asante CurrentSince Oct 1, 2025 Accepting new patients
Redlands Community Hospital Past Accepting new patients
Doctors Hospital of Riverside LLC Past Accepting new patients
Asante Three Rivers Medical Center LLC Past Accepting new patients
Riverside Healthcare System, L.P. Past Accepting new patients

Locations

1791 E Holt Blvd
Unit 101
Ontario, CA 91761
Phone (909) 460-0354

3102 E Highland Ave
Patton, CA 92369
Phone (909) 425-7000

4500 Brockton Ave
Ste 204
Riverside, CA 92501
Phone (909) 683-7620

1215 O St
#3
Sacramento, CA 95814
Phone (916) 651-2805

2825 E Barnett Rd
Medford, OR 97504
Phone (541) 282-6770

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Organizations & group practices 11

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 2

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": "1146700800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1714953600000",
    "number": "1871541961",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1791 E HOLT BLVD UNIT 101",
            "city": "ONTARIO",
            "state": "CA",
            "postal_code": "917612118",
            "telephone_number": "909-460-0354",
            "fax_number": "909-460-0367"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1791 E HOLT BLVD UNIT 101",
            "city": "ONTARIO",
            "state": "CA",
            "postal_code": "917612118",
            "telephone_number": "909-460-0354",
            "fax_number": "909-460-0367"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "THAKER",
        "first_name": "NIMISH",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-05-04",
        "last_updated": "2024-05-06",
        "certification_date": "2024-05-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "CA",
            "license": "A747570",
            "primary": false
        },
        {
            "code": "208800000X",
            "taxonomy_group": "",
            "desc": "Urology",
            "state": "CA",
            "license": "A74757",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ontario, CA

Sources for this page

Verify at the official NPI Registry.