Individual provider Active NPI

William Jacob Mack IV, M.D.

  • Neurological Surgery Physician
  • Los Angeles, CA
National Provider Identifier
1811163793
Registry record updated Nov 27, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurological Surgery PhysicianTaxonomy code 207T00000X
License
A104088 Issued in CA
Practice address
1520 San Pablo St Ste 3800
Los Angeles, CA 90033-5328
Phone
(323) 442-5720
NPI assigned
May 1, 2008
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 27, 2023

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurological Surgery Physician 207T00000X A104088 CA Primary

Addresses

Primary practice location

1520 San Pablo St Ste 3800
Los Angeles, CA 90033-5328

Mailing address

PO Box 31309
Los Angeles, CA 90031-0309
Phone (323) 442-5720

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address william.mack@direct.usc.edu Direct USC CARE MEDICAL GROUP, INC

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
I20080716000645 CA Practitioner - NeurosurgeryPractitioner - Diagnostic Radiology 3577636083 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
NeurosurgeryAlso: Diagnostic Radiology
Education
Columbia University College of Physicians and Surgeons, 2001
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Usc Care Medical Group IncGroup PAC ID 0446157747, 1,378 clinicians

Practice addresses (Care Compare)

1500 San Pablo St
Los Angeles, CA 90033-5313
Phone (323) 442-8444

1516 San Pablo St
Los Angeles, CA 90033-5313
Phone (800) 872-2273

1520 San Pablo St
Los Angeles, CA 90033-5310
Phone (800) 872-2273

1520 San Pablo St 1St Floor N
Los Angeles, CA 90033-5310
Phone (800) 872-2273

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Laminectomy or laminotomy (partial removal of spine bones)1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A104088CAMDNeurological Surgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Usc Care Medical Group, Inc CurrentSince Sep 5, 2010 Accepting new patients
Usc Care Medical Group, Inc Neurological Surgery CurrentSince Sep 5, 2010 Accepting new patients
UCLA Radiology Medical Group Past Accepting new patients

Locations

1751 Foothill Blvd
Ste 2
La Canada, CA 91011
Phone (323) 442-9700

1520 San Pablo St
Ste 3800
Los Angeles, CA 90033
Phone (323) 442-5720

1520 San Pablo St
Fl 3
Los Angeles, CA 90033

1520 San Pablo St
Los Angeles, CA 90033
Phone (323) 442-5849

1500 San Pablo St
Los Angeles, CA 90033
Phone (323) 443-8500

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: william.mack@direct.usc.edu

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 4

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": "1209600000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1701043200000",
    "number": "1811163793",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 31309",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900310309",
            "telephone_number": "323-442-5720"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1520 SAN PABLO ST STE 3800",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900335328",
            "telephone_number": "323-442-5720"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MACK",
        "first_name": "WILLIAM",
        "middle_name": "JACOB",
        "name_suffix": "IV",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-05-01",
        "last_updated": "2023-11-27",
        "certification_date": "2020-08-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207T00000X",
            "taxonomy_group": "",
            "desc": "Neurological Surgery",
            "state": "CA",
            "license": "A104088",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "william.mack@direct.usc.edu",
            "affiliation": "Y",
            "affiliationName": "USC CARE MEDICAL GROUP, INC",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1520 San Pablo St Ste 3800",
            "city": "Los Angeles",
            "state": "CA",
            "country_code": "US",
            "postal_code": "900335328",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Los Angeles, CA

Sources for this page

Verify at the official NPI Registry.