Individual provider Active NPI

Marcus L Williams

  • Emergency Medicine Physician
  • Oakland, CA
National Provider Identifier
1851708168
Registry record updated May 10, 2017
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A103108 Issued in CA
Practice address
1411 E 31St St
Oakland, CA 94602-1018
Phone
(510) 437-4800
NPI assigned
Jul 18, 2014
Last updated
May 10, 2017By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 10, 2017

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X A103108 CA Primary

Addresses

Primary practice location

1411 E 31St St
Oakland, CA 94602-1018

Mailing address

2500 Merced St
San Leandro, CA 94577-4201

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
I20160706002039 CA Practitioner - Emergency Medicine 6002108370 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
University of California, Irvine, California College of Medicine, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

350 Hawthorne Ave
Oakland, CA 94609-3108
Phone (510) 655-4000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as group
Quality
96.63
Improvement activities
40
Cost
81.81

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
130108CAMDMarriage & Family Therapist

Practice roles

OrganizationSpecialtyStatusNew patients
Cep America - California Emergency Medicine Current Accepting new patients
Permanente Medical Group Inc Emergency Medicine Current Accepting new patients
Napa Valley Emergency Medical Group Emergency Medicine CurrentSince Jan 13, 2025 Accepting new patients
Cep America - California Emergency Medicine CurrentSince Jun 1, 2016 Accepting new patients
Permanente Medical Group, Inc CurrentSince Apr 26, 2016 Accepting new patients
Berkeley Emergency Medical Group, Inc. Emergency Medicine CurrentSince May 1, 2020 Accepting new patients
Permanente Medical Group Inc Emergency Medicine CurrentSince Apr 26, 2016 Accepting new patients
Cep America-California Emergency Medicine CurrentSince Jun 1, 2016 Accepting new patients
Berkeley Emergency Medical Group, Inc. Emergency Medicine CurrentSince May 1, 2020 Accepting new patients

Locations

750 Auburn Ravine Rd
Auburn, CA 95603
Phone (530) 823-6131

2450 Ashby Ave
Berkeley, CA 94705
Phone (510) 204-1566

2100 Powell St
Ste 900
Emeryville, CA 94608
Phone (510) 350-2777

500 W Hospital Rd
French Camp, CA 95231
Phone (209) 468-6000

4753 W Shaw Ave
Ste 101
Fresno, CA 93722
Phone (559) 277-8738

900 N Douty St
Hanford, CA 93230
Phone (559) 587-9014

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423

1000 Trancas St
Napa, CA 94558
Phone (707) 226-2901

350 Hawthorne Ave
Oakland, CA 94609
Phone (510) 655-4000

101 Monroe St
Petaluma, CA 94954
Phone (707) 763-4109

1150 Veterans Blvd
Redwood City, CA 94063
Phone (650) 299-2015

901 Nevin Ave
Richmond, CA 94801
Phone (510) 307-1500

930 W Main St
Ripon, CA 95366
Phone (209) 599-4221

2200 Ofarrell St
San Francisco, CA 94115
Phone (415) 202-2000

2500 Merced St
San Leandro, CA 94577
Phone (510) 454-1000

710 Lawrence Expy
Santa Clara, CA 95051
Phone (408) 236-6400

347 Andrieux St
Sonoma, CA 95476
Phone (707) 935-5000

7373 West Ln
Stockton, CA 95210
Phone (209) 476-2000

975 Sereno Dr
Vallejo, CA 94589
Phone (707) 651-1000

320 N Crawford St
Willows, CA 95988
Phone (530) 934-2834

Interoperability endpoints

  • Direct secure messaging: mwilliams272726@hisp.ehr.sutterhealth.org

Organizations & group practices 9

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

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": "1405641600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1494374400000",
    "number": "1851708168",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2500 MERCED ST",
            "city": "SAN LEANDRO",
            "state": "CA",
            "postal_code": "945774201"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1411 E 31ST ST",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946021018",
            "telephone_number": "510-437-4800"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "MARCUS",
        "middle_name": "L",
        "name_prefix": "Dr.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-07-18",
        "last_updated": "2017-05-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A103108",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Oakland, CA

Sources for this page

Verify at the official NPI Registry.