Individual provider Active NPI

Alex Walsh, DO

  • Emergency Medicine Physician
  • Redwood City, CA
National Provider Identifier
1851956833
Registry record updated Jul 6, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
20A21136 Issued in CA
Practice address
170 Alameda de Las Pulgas
Redwood City, CA 94062-2799
Phone
(650) 367-5976
NPI assigned
May 6, 2019
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 6, 2023

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 20A21136 CA Primary

Addresses

Primary practice location

170 Alameda de Las Pulgas
Redwood City, CA 94062-2799

Mailing address

5840 W Orchid LN
Chandler, AZ 85226-1220
Phone (480) 334-0404

Other practice location 1

29000 Center Ridge Rd
Westlake, OH 44145-5219
Phone (440) 827-5261

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
I20230809001566 CA Practitioner - Emergency Medicine 5092100834 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Cep America - CaliforniaGroup PAC ID 6103739131, shared by 2 NPIs, 1,278 clinicians

Practice addresses (Care Compare)

170 Alameda de Las Pulgas
Redwood City, CA 94062-2751
Phone (650) 369-5811

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 Osteopathy

State licenses

LicenseStateTypeSpecialty
20A21136CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Cep America - California Emergency Medicine CurrentSince Aug 1, 2023 Accepting new patients
Cep America - California Emergency Medicine Current Accepting new patients
Carbon Health Medical Group of California PC CurrentSince Oct 1, 2025 Accepting new patients
Cep America-California Emergency Medicine CurrentSince Aug 1, 2023 Accepting new patients
Cep America-California Emergency Medicine CurrentSince Aug 1, 2023 Accepting new patients
Carbon Health Medical Group of California PC CurrentSince Oct 1, 2025 Accepting new patients
Cep America - California Emergency Medicine Current Accepting new patients
Carbon Health Primary Care of California PC PastSince Jul 20, 2025 Accepting new patients

Locations

2690 5th St
Ste B
Alameda, CA 94501
Phone (510) 439-9447

7330 El Camino Real
Atascadero, CA 93422
Phone (805) 703-2501

1760 S Bascom Ave
Ste 140
Campbell, CA 95008
Phone (408) 214-9732

6971 El Camino Real
Ste 101
Carlsbad, CA 92009
Phone (760) 258-4971

4156 Manzanita Ave
Ste 100
Carmichael, CA 95608
Phone (916) 483-5400

11971 Central Ave
Ste B
Chino, CA 91710
Phone (909) 310-1488

2755 Herndon Ave
Clovis, CA 93611
Phone (559) 323-4000

3955 Bedford Canyon Rd
Unit 103
Corona, CA 92883
Phone (951) 293-4722

303 Corte Madera Town Ctr
Corte Madera, CA 94925
Phone (415) 840-8615

2100 Powell St
Ste 400
Emeryville, CA 94608
Phone (510) 350-2638

14443 Culver Dr
#14443A
Irvine, CA 92604
Phone (949) 767-8173

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

806 New Los Angeles Ave
Moorpark, CA 93021
Phone (805) 334-8650

401 Grand Ave
#1112
Oakland, CA 94610
Phone (800) 756-4206

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

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

15031 Rinaldi St
San Fernando, CA 91345
Phone (818) 365-8051

1390 Market St
Ste 109
San Francisco, CA 94102
Phone (415) 918-5766

46 Hillsdale Mall
San Mateo, CA 94403
Phone (650) 769-5612

Organizations & group practices 8

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 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": "1557100800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1688601600000",
    "number": "1851956833",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5840 W ORCHID LN",
            "city": "CHANDLER",
            "state": "AZ",
            "postal_code": "852261220",
            "telephone_number": "480-334-0404"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "170 ALAMEDA DE LAS PULGAS",
            "city": "REDWOOD CITY",
            "state": "CA",
            "postal_code": "940622799",
            "telephone_number": "650-367-5976"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "29000 Center Ridge Rd",
            "address_purpose": "LOCATION",
            "city": "Westlake",
            "state": "OH",
            "postal_code": "441455219",
            "country_code": "US",
            "telephone_number": "440-827-5261",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WALSH",
        "first_name": "ALEX",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-05-06",
        "last_updated": "2023-07-06",
        "certification_date": "2023-07-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "20A21136",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Redwood City, CA

Sources for this page

Verify at the official NPI Registry.