NPIMap

Individual provider Active NPI

David G Alonso, MD

  • Internal Medicine Physician
  • Chico, CA
National Provider Identifier
1467403246
Registry record updated Jan 5, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A112504 Issued in CA
Practice address
564 Rio Lindo Ave Ste 102
Chico, CA 95926-1852
Phone
(530) 965-9900
Fax
(530) 965-9265
NPI assigned
May 15, 2006
Last updated
Jan 5, 2023By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 5, 2023

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 12929 NH
Internal Medicine Physician 207R00000X A112504 CA Primary

Addresses

Primary practice location

564 Rio Lindo Ave Ste 102
Chico, CA 95926-1852

Mailing address

564 Rio Lindo Ave Ste 102
Chico, CA 95926-1852
Phone (530) 965-9900

Other identifiers 4

IdentifierTypeStateIssuer
1467403246MedicaidCA
30212766MedicaidNH
1235497611MedicaidCA
P00889088OtherCARR MEDICARE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20101030000085 CA Practitioner - Internal Medicine 5193738672 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Temple University School of Medicine, 2003
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Bass Medical GroupGroup PAC ID 9032111281, 292 clinicians

Practice addresses (Care Compare)

564 Rio Lindo Ave
Suite 100
Chico, CA 95926-1852
Phone (530) 767-3300

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Melanoma (skin cancer) excision1-10
Removal of tissue1-10
Removal of skin lesions41
Skin biopsy1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A112504CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Bass Medical Group CurrentSince Aug 18, 2025 Accepting new patients
David Alonso, MD Inc Internal Medicine CurrentSince Dec 10, 2013 Accepting new patients
Bass Medical Group CurrentSince Aug 18, 2025 Accepting new patients
Bass Medical Group Past Accepting new patients
Southern New Hampshire Internal Medicine Associates, PLLC Past Accepting new patients

Locations

1645 Esplanade
Ste 1
Chico, CA 95926
Phone (530) 896-0386

564 Rio Lindo Ave
Ste 100
Chico, CA 95926
Phone (530) 767-3300

564 Rio Lindo Ave
Ste 102
Chico, CA 95926
Phone (530) 965-9265

564 Rio Lindo Ave
Ste 204
Chico, CA 95926
Phone (530) 339-5600

85 Declaration Dr
Ste 110
Chico, CA 95973
Phone (530) 894-6600

Interoperability endpoints

  • Direct secure messaging: dalonso15149@enloedirect.org
  • Direct secure messaging: david.alonso.1@25176.direct.athenahealth.com
  • FHIR API: https://api.platform.athenahealth.com/26590/brand/1/csg/1/fhir/r4

Organizations & group practices 5

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 13

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 13

NPI Registry JSON

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

{
    "created_epoch": "1147651200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1672876800000",
    "number": "1467403246",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "564 RIO LINDO AVE STE 102",
            "city": "CHICO",
            "state": "CA",
            "postal_code": "959261852",
            "telephone_number": "530-965-9900",
            "fax_number": "530-965-9265"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "564 RIO LINDO AVE STE 102",
            "city": "CHICO",
            "state": "CA",
            "postal_code": "959261852",
            "telephone_number": "530-965-9900",
            "fax_number": "530-965-9265"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALONSO",
        "first_name": "DAVID",
        "middle_name": "G",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-05-15",
        "last_updated": "2023-01-05",
        "certification_date": "2023-01-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NH",
            "license": "12929",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A112504",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1467403246",
            "state": "CA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "30212766",
            "state": "NH"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1235497611",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MEDICARE",
            "identifier": "P00889088",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Chico, CA

Sources for this page

Verify at the official NPI Registry.