Individual provider Active NPI

Janusz J Madej, M.D.

  • Internal Medicine Physician
  • Los Altos, CA
National Provider Identifier
1376616706
Registry record updated Mar 30, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A69531 Issued in CA
Practice address
339 S San Antonio Rd Ste 1a
Los Altos, CA 94022-3699
Phone
(650) 529-1669
Fax
(650) 529-1670
NPI assigned
Nov 15, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 30, 2024

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A69531 CA Primary

Addresses

Primary practice location

339 S San Antonio Rd Ste 1a
Los Altos, CA 94022-3699

Mailing address

339 S San Antonio Rd Ste 1a
Los Altos, CA 94022-3699
Phone (650) 529-1669

Other practice location 1

3130 Alpine Rd.
Ste 180
Portola Valley, CA 94028
Phone (650) 529-1669

Other names 1

  • Dr. John Madej Professional name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
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.
Opted out of Medicare
Yes, effective Jan 1, 2024 through Jan 1, 2028

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Los Altos Neurology CurrentSince Jul 1, 2022 Accepting new patients
Ukiah Valley Primary Care Medical Group, Inc Past Accepting new patients
The Center for Rapid Resolution Therapy LLC Past Accepting new patients
Northlake Internal Medicine Internal Medicine Past Accepting new patients

Locations

881 Fremont Ave
Ste B6
Los Altos, CA 94024
Phone (650) 529-1669

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/3174/brand/1/csg/1/fhir/r4
  • FHIR API: https://fhir-myrecord.cerner.com/r4/fdd8a9ae-8fbb-4d2d-bbc0-da474abde02e/

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.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1163548800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1711756800000",
    "number": "1376616706",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "339 S SAN ANTONIO RD STE 1A",
            "city": "LOS ALTOS",
            "state": "CA",
            "postal_code": "940223699",
            "telephone_number": "650-529-1669",
            "fax_number": "650-529-1670"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "339 S SAN ANTONIO RD STE 1A",
            "city": "LOS ALTOS",
            "state": "CA",
            "postal_code": "940223699",
            "telephone_number": "650-529-1669",
            "fax_number": "650-529-1670"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3130 ALPINE RD.",
            "address_2": "STE 180",
            "address_purpose": "LOCATION",
            "city": "PORTOLA VALLEY",
            "state": "CA",
            "postal_code": "94028",
            "country_code": "US",
            "telephone_number": "650-529-1669",
            "fax_number": "650-529-1670",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MADEJ",
        "first_name": "JANUSZ",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-11-15",
        "last_updated": "2024-03-30",
        "certification_date": "2024-03-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A69531",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JOHN",
            "last_name": "MADEJ",
            "prefix": "DR.",
            "credential": "M.D.",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

Other providers in Los Altos, CA

Sources for this page

Verify at the official NPI Registry.