Individual provider Active NPI

Mary Elizabeth Johnson, MD

  • Emergency Medicine Physician
  • San Francisco, CA
National Provider Identifier
1902887227
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A75167 Issued in CA
Practice address
2333 Buchanan St
San Francisco, CA 94115-1925
Phone
(209) 342-2300
Fax
(209) 524-4240
NPI assigned
Nov 14, 2005
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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 A75167 CA Primary

Addresses

Primary practice location

2333 Buchanan St
San Francisco, CA 94115-1925

Mailing address

PO Box 232410
San Diego, CA 92193-2410
Phone (209) 342-2300

Other identifiers 2

IdentifierTypeStateIssuer
00A751670MedicaidCA
00A751670OtherCABLUE SHIELD

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
I20040521001017 CA Practitioner - Emergency Medicine 9436140951 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
University of Oklahoma College of Medicine, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Scripps HealthGroup PAC ID 9234033853, 1,450 clinicians

Practice addresses (Care Compare)

10666 N Torrey Pines Rd
2ND Floor Sw209
La Jolla, CA 92037-1027
Phone (858) 554-8122

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
75167CAMDPharmacist
A75167CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Regents of the University of California Emergency Medicine CurrentSince Sep 12, 2016 Accepting new patients
Cep America - California Emergency Medicine Current Accepting new patients
Scripps Health Emergency Medicine Current Accepting new patients
Scripps Health CurrentSince Aug 1, 2016 Accepting new patients
Regents of the University of California Emergency Medicine CurrentSince Sep 1, 2008 Accepting new patients
Scripps Health Current Accepting new patients
Cep America-California Emergency Medicine CurrentSince Sep 1, 2008 Accepting new patients
Scripps Health Emergency Medicine CurrentSince Aug 1, 2016 Accepting new patients
Regents of the University of California CurrentSince Sep 12, 2016 Accepting new patients
Scripps Health Current Accepting new patients
Cep America - California Emergency Medicine CurrentSince Sep 1, 2008 Accepting new patients
Regents of the Unviersity of California Emergency Medicine CurrentSince Sep 1, 2008 Accepting new patients
San Francisco Emergency Medical Associates Emergency Medicine Past Accepting new patients
Anaheim Memorial Hospital Emergency Physicians Medical Group Emergency Medicine Past Accepting new patients
California Em-I Medical Services Emergency Medicine Past Accepting new patients

Locations

207 W Legion Rd
Brawley, CA 92227
Phone (760) 351-3333

10666 N Torrey Pines Rd
Fl 2
La Jolla, CA 92037
Phone (858) 554-8122

9888 Genesee Ave
La Jolla, CA 92037
Phone (858) 457-4123

9300 Campus Point Dr
La Jolla, CA 92037
Phone (619) 957-7000

File 54826
Los Angeles, CA 90074

File 54433
Los Angeles, CA 90074
Phone (858) 784-5645

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

1600 N Rose Ave
Oxnard, CA 93030
Phone (805) 988-2500

15615 Pomerado Rd
Poway, CA 92064
Phone (858) 613-4000

3350 La Jolla Village Dr
San Diego, CA 92161
Phone (858) 552-7525

200 W Arbor Dr
San Diego, CA 92103
Phone (619) 543-5754

Interoperability endpoints

  • Direct secure messaging: mjohnson19264@scrippshlth.medalliesdirect.net

Organizations & group practices 15

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.

View all 15

Hospital & facility affiliations 1

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": "1131926400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1902887227",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 232410",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921932410",
            "telephone_number": "209-342-2300",
            "fax_number": "209-524-4240"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2333 BUCHANAN ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941151925",
            "telephone_number": "209-342-2300",
            "fax_number": "209-524-4240"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JOHNSON",
        "first_name": "MARY",
        "middle_name": "ELIZABETH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-11-14",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A75167",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A751670",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE SHIELD",
            "identifier": "00A751670",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.