Individual provider Active NPI

Erik J Geiger, MD

  • Internal Medicine Physician
  • Irvine, CA
National Provider Identifier
1255490199
Registry record updated Nov 22, 2016
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A84929 Issued in CA
Practice address
11 Technology Dr
Irvine, CA 92618-2302
Phone
(855) 206-6764
Fax
(949) 923-3575
NPI assigned
Dec 6, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 22, 2016

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A84929 CA Primary
Hospitalist Physician 208M00000X A84929 CA

Addresses

Primary practice location

11 Technology Dr
Irvine, CA 92618-2302

Mailing address

11 Technology Dr
Irvine, CA 92618-2302
Phone (855) 206-6764

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
I20090818000748 CA Practitioner - Internal MedicinePractitioner - Other (Physician) 7416001912 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2001
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services

Practice addresses (Care Compare)

2141 W Orangewood Ave
Orange, CA 92868-1955
Phone (949) 620-3137

27700 Medical Ctr Rd
Mission Viejo, CA 92691-6426
Phone (949) 364-1400

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A84929CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Gapcare PC Internal Medicine CurrentSince Jun 1, 2024 Accepting new patients
Centers for Family Medicine GP Internal Medicine CurrentSince Mar 1, 2014 Accepting new patients
Erik J Geiger MD Inc. Hospitalist CurrentSince Sep 7, 2025 Accepting new patients
Monarch Healthcare, a Medical Group, Inc. Past Accepting new patients

Locations

11 Technology Dr
Irvine, CA 92618
Phone (855) 206-6764

3460 Katella Ave
Los Alamitos, CA 90720
Phone (310) 594-6599

27700 Medical Center Rd
Mission Viejo, CA 92691
Phone (949) 364-7744

2141 W Orangewood Ave
Orange, CA 92868
Phone (714) 266-1000

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: erik.geiger.1@31040.direct.athenahealth.com
  • Direct secure messaging: erikj.geiger.p7@direct.monarchhealthcare.nextgenshare.com

Organizations & group practices 4

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 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": "1165363200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1479772800000",
    "number": "1255490199",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11 TECHNOLOGY DR",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926182302",
            "telephone_number": "855-206-6764",
            "fax_number": "949-923-3575"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11 TECHNOLOGY DR",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926182302",
            "telephone_number": "855-206-6764",
            "fax_number": "949-923-3575"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GEIGER",
        "first_name": "ERIK",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-06",
        "last_updated": "2016-11-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A84929",
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "A84929",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Irvine, CA

Sources for this page

Verify at the official NPI Registry.