Individual provider Active NPI

Anthony Paul Nicolaysen, MD

  • Nephrology Physician
  • Mission Hills, CA
National Provider Identifier
1154869576
Registry record updated Jul 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
A174994 Issued in CA
Practice address
11550 Indian Hills Rd Ste 371
Mission Hills, CA 91345-1252
Phone
(818) 365-1194
Fax
(818) 898-3835
NPI assigned
Feb 6, 2017
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 16, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X A174994 CA Primary

Addresses

Primary practice location

11550 Indian Hills Rd Ste 371
Mission Hills, CA 91345-1252

Mailing address

11550 Indian Hills Rd Ste 371
Mission Hills, CA 91345-1252
Phone (818) 365-1194

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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
I20230728001049 CA Practitioner - NephrologyPractitioner - Internal Medicine 7416295639 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
NephrologyAlso: Internal Medicine
Education
Oregon Health Sciences University School of Medicine, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Kidney Consultants Medical Group IncGroup PAC ID 5597739276, 13 clinicians
Prohealth Partners, a Medical GroupGroup PAC ID 2769388412, 236 clinicians

Practice addresses (Care Compare)

11550 Indian Hills Rd
Suite 371
Mission Hills, CA 91345-1252
Phone (818) 365-1194

9400 Brighton Way
Suite 210
Beverly Hills, CA 90210-4709
Phone (310) 362-1255

Hospital & facility affiliations

  • USRC Panorama Dialysis Dialysis facility, Panorama City, CA, CCN 052827
  • Northridge Kidney Center, LLC Dialysis facility, Northridge, CA, CCN 552879
  • Northridge Hospital Medical Center Hospital, Northridge, CA, CCN 050116
  • Henry Mayo Newhall Hospital Hospital, Valencia, CA, CCN 050624
  • Pacifica Hospital of the Valley Hospital, Sun Valley, CA, CCN 050378
  • Providence Holy Cross Medical Center Hospital, Mission Hills, CA, CCN 050278
  • Valley Presbyterian Hospital Hospital, Van Nuys, CA, CCN 050126

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A174994CAMDNephrology Physician

Practice roles (1 of 2)

OrganizationSpecialtyStatusNew patients
Kidney Consultants Medical Group, Inc CurrentSince Jul 28, 2025 Accepting new patients

Locations

11550 Indian Hills Rd
Ste 371
Mission Hills, CA 91345
Phone (818) 365-1194

23421 Lyons Ave
Valencia, CA 91355
Phone (661) 753-9891

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: anicolaysen45712@direct.davitaphysiciansolutions.com

Organizations & group practices 2

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 7

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": "1486339200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752624000000",
    "number": "1154869576",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11550 INDIAN HILLS RD STE 371",
            "city": "MISSION HILLS",
            "state": "CA",
            "postal_code": "913451252",
            "telephone_number": "818-365-1194",
            "fax_number": "818-898-3635"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11550 INDIAN HILLS RD STE 371",
            "city": "MISSION HILLS",
            "state": "CA",
            "postal_code": "913451252",
            "telephone_number": "818-365-1194",
            "fax_number": "818-898-3835"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NICOLAYSEN",
        "first_name": "ANTHONY",
        "middle_name": "PAUL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-02-06",
        "last_updated": "2025-07-16",
        "certification_date": "2025-07-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "CA",
            "license": "A174994",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Mission Hills, CA

Sources for this page

Verify at the official NPI Registry.