Kristina Byers-Spencer, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A202685 Issued in CA

Practice address

3851 Shaw Ridge Rd
San Diego, CA 92130-2807

Phone

(833) 574-2273

NPI assigned

Apr 7, 2021

Last updated

Jun 16, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 4

Addresses

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

Specialty

Internal Medicine

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Baldwin Park, CA
  • NPI 1770515280
  Medicare reassignment NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Los Angeles, CA
  • NPI 1043242563
  NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Santa Clarita, CA
  • NPI 1316409410
  NPD
• Spectrum Health Hospitals

  dba Corewell Health Grand Rapids Hospital

  • General Acute Care Hospital
  • Grand Rapids, MI
  • NPI 1922090554
  NPD (past)

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

{
    "created_epoch": "1617753600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750032000000",
    "number": "1487233250",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3851 SHAW RIDGE RD",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921302807",
            "telephone_number": "833-574-2273"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3851 SHAW RIDGE RD",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921302807",
            "telephone_number": "833-574-2273"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BYERS-SPENCER",
        "first_name": "KRISTINA",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-07",
        "last_updated": "2025-06-16",
        "certification_date": "2025-06-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4351048100",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A202685",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MI",
            "license": "4351048100",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Erin Buzon
• Tanya Buzzanga, CCC-SLP
• Brian Buzzella, PH.D.
• Frances Bychak
• Kenneth James Bychak, RN
• Alexander Byers
• Steven J Byers, DDS
• Tatum Byhre, RD
• William Homer Byington, RN
• Sophia Anna Bylsma, MD

• Internal Medicine Physician in San Diego, CA
• Providers in San Diego, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 16, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.