NPIMap

Individual provider Active NPI

Fred Bayon, M.D.

  • Internal Medicine Physician
  • Vallejo, CA
National Provider Identifier
1225031362
Registry record updated Dec 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
G69611 Issued in CA
Practice address
155 Glen Cove Marina Rd E
Ste 100
Vallejo, CA 94591-7284
Phone
(707) 558-8699
Fax
(707) 558-1864
NPI assigned
May 23, 2005
Last updated
Dec 30, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 30, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X G69611 CA Primary

Addresses

Primary practice location

155 Glen Cove Marina Rd E
Ste 100
Vallejo, CA 94591-7284

Mailing address

155 Glen Cove Marina Rd E
Ste 100
Vallejo, CA 94591-7284
Phone (707) 558-8699

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
I20081113000190 CA Practitioner - Internal Medicine 6507925443 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Icahn School of Medicine at Mount Sinai, 1984
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Solano Primary Care Medical GroupGroup PAC ID 3274577606, 2 clinicians

Practice addresses (Care Compare)

155 Glen Cove Marina Rd E
Vallejo, CA 94591-7284
Phone (707) 558-8699

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
87.88 of 100Reported as individual
Quality
100
Promoting interoperability
100
Improvement activities
40
Cost
59.58

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
John Muir Health Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: fbayon12425@ehr.johnmuirhealth.com

Organizations & group practices 2

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 8

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": "1116806400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767052800000",
    "number": "1225031362",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "155 GLEN COVE MARINA RD E",
            "address_2": "STE 100",
            "city": "VALLEJO",
            "state": "CA",
            "postal_code": "945917284",
            "telephone_number": "707-558-8699",
            "fax_number": "707-558-1864"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "155 GLEN COVE MARINA RD E",
            "address_2": "STE 100",
            "city": "VALLEJO",
            "state": "CA",
            "postal_code": "945917284",
            "telephone_number": "707-558-8699",
            "fax_number": "707-558-1864"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BAYON",
        "first_name": "FRED",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-05-23",
        "last_updated": "2025-12-30",
        "certification_date": "2025-12-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G69611",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Vallejo, CA

Sources for this page

Verify at the official NPI Registry.