Individual provider Active NPI

Christian Alfred Eirich, MD

  • Anesthesiology Physician
  • Castro Valley, CA
National Provider Identifier
1518915883
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
A93355 Issued in CA
Practice address
20103 Lake Chabot Rd
Castro Valley, CA 94546-5341
Phone
(510) 537-1234
Fax
(510) 727-2786
NPI assigned
May 5, 2006
Sex
Male
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
Anesthesiology Physician 207L00000X A93355 CA Primary

Addresses

Primary practice location

20103 Lake Chabot Rd
Castro Valley, CA 94546-5341

Mailing address

8905 SW Nimbus Ave
Ste 300
Beaverton, OR 97008-7136
Phone (503) 372-2740

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
I20070605000703 CA Practitioner - Anesthesiology 5597863118 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Tulane University School of Medicine, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
G2 Anesthesia PCGroup PAC ID 3375873599, 104 clinicians

Practice addresses (Care Compare)

2425 Samaritan Dr
San Jose, CA 95124-3908
Phone (408) 559-2011

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
93355CAMDClinical Social Worker
A93355CAMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
John Muir Trauma Physicians Billing Service Current Accepting new patients
G2 Anesthesia PC Anesthesiology CurrentSince Jan 1, 2023 Accepting new patients
John Muir Trauma Physicians Billing Service Anesthesiology CurrentSince Jan 6, 2010 Accepting new patients

Locations

1720 El Camino Real
Ste 100
Burlingame, CA 94010
Phone (650) 259-5300

429 Llewellyn Ave
Campbell, CA 95008
Phone (408) 358-5000

15047 Los Gatos Blvd
Ste 150
Los Gatos, CA 95032
Phone (408) 356-2244

15047 Los Gatos Blvd
Los Gatos, CA 95032
Phone (408) 356-2774

3468 California St
San Francisco, CA 94118
Phone (415) 345-0100

3370 Geary Blvd
San Francisco, CA 94118
Phone (415) 379-7500

2425 Samaritan Dr
San Jose, CA 95124
Phone (408) 354-2114

100 Park Pl
Ste 200
San Ramon, CA 94583
Phone (925) 867-1800

100 N Wiget Ln
Ste 140
Walnut Creek, CA 94598
Phone (530) 758-2324

365 Lennon Ln
Ste 100
Walnut Creek, CA 94598
Phone (925) 929-4600

2021 Ygnacio Valley Rd
Ste H102
Walnut Creek, CA 94598
Phone (866) 678-4320

100 N Wiget Ln
Walnut Creek, CA 94598
Phone (530) 758-2324

460 N Wiget Ln
Ste C
Walnut Creek, CA 94598
Phone (925) 378-4949

133 La Casa Via
Ste 150
Walnut Creek, CA 94598
Phone (925) 210-8400

370 N Wiget Ln
Ste 250
Walnut Creek, CA 94598
Phone (925) 278-7592

1601 Ygnacio Valley Rd
#100
Walnut Creek, CA 94598
Phone (925) 947-5245

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.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1146787200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1518915883",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8905 SW NIMBUS AVE",
            "address_2": "STE 300",
            "city": "BEAVERTON",
            "state": "OR",
            "postal_code": "970087136",
            "telephone_number": "503-372-2740",
            "fax_number": "503-372-2754"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20103 LAKE CHABOT RD",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945465341",
            "telephone_number": "510-537-1234",
            "fax_number": "510-727-2786"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "EIRICH",
        "first_name": "CHRISTIAN",
        "middle_name": "ALFRED",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-05",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "A93355",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Castro Valley, CA

Sources for this page

Verify at the official NPI Registry.