NPIMap

Individual provider Active NPI

Sarah Semon, MD

  • Infectious Disease Physician
  • Sacramento, CA
National Provider Identifier
1457988446
Registry record updated Nov 19, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Infectious Disease PhysicianTaxonomy code 207RI0200X
License
A186777 Issued in CA
Practice address
4301 X St
Sacramento, CA 95817-2214
Phone
(916) 734-3037
NPI assigned
Mar 27, 2020
Last updated
Nov 19, 2025By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Nov 19, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Infectious Disease Physician 207RI0200X A186777 CA Primary

Addresses

Primary practice location

4301 X St
Sacramento, CA 95817-2214

Mailing address

405 18TH St # 205
Sacramento, CA 95811-1057
Phone (414) 218-9246

Other practice location 1

119 Oakfield Dr
Brandon, FL 33511-5779
Phone (813) 681-5551

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
I20231201001905 CA Practitioner - Infectious DiseasePractitioner - Internal Medicine 2860810421 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Infectious DiseaseAlso: Internal Medicine
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Alameda Health SystemGroup PAC ID 3779494521, 597 clinicians

Practice addresses (Care Compare)

13851 E 14TH St
Suite 308
San Leandro, CA 94578-2630
Phone (925) 463-1318

13855 E 14TH St
San Leandro, CA 94578-2611
Phone (510) 357-6500

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A186777CAMDInfectious Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Alameda Health System CurrentSince Nov 30, 2025 Accepting new patients
Alameda Health System CurrentSince Nov 30, 2025 Accepting new patients
Alameda Health System Current Accepting new patients
Diablo Infectious Disease Consultative Service Med GRP Inc Infectious Disease CurrentSince Oct 14, 2025 Accepting new patients

Locations

2070 Clinton Ave
Alameda, CA 94501
Phone (510) 522-3700

15400 Foothill Blvd
Castro Valley, CA 94578
Phone (510) 346-1468

1141 Catalina Dr
#194
Livermore, CA 94550

1411 E 31st St
Oakland, CA 94602
Phone (510) 437-4323

13851 E 14th St
Ste 308
San Leandro, CA 94578
Phone (510) 351-1193

13855 E 14th St
San Leandro, CA 94578
Phone (510) 357-6500

Interoperability endpoints

  • Direct secure messaging: ssemon770777@hisp.ehr.sutterhealth.org

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 6

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": "1585267200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763510400000",
    "number": "1457988446",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "405 18TH ST # 205",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958111057",
            "telephone_number": "414-218-9246"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4301 X ST",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958172214",
            "telephone_number": "916-734-3037"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "119 Oakfield Dr",
            "address_purpose": "LOCATION",
            "city": "Brandon",
            "state": "FL",
            "postal_code": "335115779",
            "country_code": "US",
            "telephone_number": "813-681-5551",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SEMON",
        "first_name": "SARAH",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2020-03-27",
        "last_updated": "2025-11-19",
        "certification_date": "2025-11-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "CA",
            "license": "A186777",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Sacramento, CA

Sources for this page

Verify at the official NPI Registry.