Individual provider Active NPI

William Johnston, M.D.

  • Emergency Medicine Physician
  • Palo Alto, CA
National Provider Identifier
1417366584
Registry record updated Aug 12, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A138944 Issued in CA
Practice address
3801 Miranda Ave
Palo Alto, CA 94304-1207
Phone
(650) 493-5000
NPI assigned
Aug 3, 2014
Last updated
Aug 12, 2021By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 12, 2021

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 A138944 CA Primary

Addresses

Primary practice location

3801 Miranda Ave
Palo Alto, CA 94304-1207

Mailing address

2015 Ray Dr
Burlingame, CA 94010-4655

Other practice location 1

30 Prospect Ave
Hackensack, NJ 07601-1914
Phone (551) 996-2000

Other practice location 2

30 Prospect Ave
Hackensack, NJ 07601-1914
Phone (551) 996-2000

Other practice location 3

222 W 39th Ave
San Mateo, CA 94403-4364
Phone (650) 573-2222

Other practice location 4

1200 El Camino Real
South San Francisco, CA 94080-3208
Phone (650) 742-2000

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
I20161010000813 CA Practitioner - Emergency Medicine 9537457445 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Cep America - CaliforniaGroup PAC ID 6103739131, 1,278 clinicians

Practice addresses (Care Compare)

222 W 39TH Ave
San Mateo, CA 94403-4364
Phone (650) 573-2222

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
96.69 of 100Reported as group
Quality
90
Improvement activities
40
Cost
78.43

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A138944CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Cep America - California Emergency Medicine Current Accepting new patients
Cep America-California Emergency Medicine CurrentSince Feb 1, 2018 Accepting new patients
Cep America - California Emergency Medicine CurrentSince Feb 1, 2018 Accepting new patients

Locations

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

27200 Calaroga Ave
Hayward, CA 94545
Phone (510) 264-2000

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

170 Alameda de las Pulgas
Redwood City, CA 94062
Phone (650) 367-5536

4445 Magnolia Ave
Riverside, CA 92501
Phone (800) 498-7156

222 W 39th Ave
San Mateo, CA 94403
Phone (415) 573-2222

Interoperability endpoints

  • Direct secure messaging: wjohnston19741@smch.direct-ci.com

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 8

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": "1407024000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1628726400000",
    "number": "1417366584",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2015 RAY DR",
            "city": "BURLINGAME",
            "state": "CA",
            "postal_code": "940104655"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3801 MIRANDA AVE",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041207",
            "telephone_number": "650-493-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "30 Prospect Ave",
            "address_purpose": "LOCATION",
            "city": "Hackensack",
            "state": "NJ",
            "postal_code": "076011914",
            "country_code": "US",
            "telephone_number": "551-996-2000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "30 Prospect Ave",
            "address_purpose": "LOCATION",
            "city": "Hackensack",
            "state": "NJ",
            "postal_code": "076011914",
            "country_code": "US",
            "telephone_number": "551-996-2000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "222 W 39th Ave",
            "address_purpose": "LOCATION",
            "city": "San Mateo",
            "state": "CA",
            "postal_code": "944034364",
            "country_code": "US",
            "telephone_number": "650-573-2222",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1200 El Camino Real",
            "address_purpose": "LOCATION",
            "city": "South San Francisco",
            "state": "CA",
            "postal_code": "940803208",
            "country_code": "US",
            "telephone_number": "650-742-2000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JOHNSTON",
        "first_name": "WILLIAM",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-08-03",
        "last_updated": "2021-08-12",
        "certification_date": "2021-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A138944",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.