Individual provider Active NPI

John W Witczak, DO

  • Orthopaedic Surgery Physician
  • Mission Viejo, CA
National Provider Identifier
1811913825
Registry record updated Jul 8, 2007
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Surgery PhysicianTaxonomy code 207X00000X
License
20A4682 Issued in CA
Practice address
26921 Crown Valley Pkwy
Ste 201
Mission Viejo, CA 92691-6501
Phone
(949) 348-2250
Fax
(949) 348-8904
NPI assigned
Jul 14, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 8, 2007

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Orthopaedic Surgery Physician 207X00000X 20A4682 CA Primary

Addresses

Primary practice location

26921 Crown Valley Pkwy
Ste 201
Mission Viejo, CA 92691-6501

Mailing address

26921 Crown Valley Pkwy
Ste 201
Mission Viejo, CA 92691-6501
Phone (949) 348-2250

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
20A4682CAMDOrthopaedic Surgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Asante Community Services LLC Past Accepting new patients
Asante Physician Partners Orthopaedic Surgery PastSince Nov 1, 2012 Accepting new patients

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.

NPI Registry JSON

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

{
    "created_epoch": "1152835200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183852800000",
    "number": "1811913825",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "26921 CROWN VALLEY PKWY",
            "address_2": "STE 201",
            "city": "MISSION VIEJO",
            "state": "CA",
            "postal_code": "926916501",
            "telephone_number": "949-348-2250",
            "fax_number": "949-348-8904"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "26921 CROWN VALLEY PKWY",
            "address_2": "STE 201",
            "city": "MISSION VIEJO",
            "state": "CA",
            "postal_code": "926916501",
            "telephone_number": "949-348-2250",
            "fax_number": "949-348-8904"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WITCZAK",
        "first_name": "JOHN",
        "middle_name": "W",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-14",
        "last_updated": "2007-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "CA",
            "license": "20A4682",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Mission Viejo, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2007; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.