Nathan Hoyoon Lee, MD

Primary specialty

Otolaryngology PhysicianTaxonomy code 207Y00000X

License

203752 Issued in CA

Practice address

9961 Sierra Ave
Fontana, CA 92335-6720

Phone

(866) 454-3485

NPI assigned

Apr 1, 2020

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

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

Otolaryngology

Education

Loma Linda University School of Medicine, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Southern California Permanente Medical GroupGroup PAC ID 6002729175, 11,250 clinicians

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 and National Provider Directory roles.

• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Riverside, CA
  • NPI 1316979834
  Medicare reassignment Care Compare group
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Santa Clarita, CA
  • NPI 1316409410
  NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Fontana, CA
  • NPI 1316463763
  NPD

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

{
    "created_epoch": "1585699200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763856000000",
    "number": "1881223915",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9961 SIERRA AVE",
            "city": "FONTANA",
            "state": "CA",
            "postal_code": "923356720",
            "telephone_number": "866-454-3485"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9961 SIERRA AVE",
            "city": "FONTANA",
            "state": "CA",
            "postal_code": "923356720",
            "telephone_number": "866-454-3485"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2295 S Vineyard Ave",
            "address_purpose": "LOCATION",
            "city": "Ontario",
            "state": "CA",
            "postal_code": "917617925",
            "country_code": "US",
            "telephone_number": "866-454-3485",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEE",
        "first_name": "NATHAN",
        "middle_name": "HOYOON",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2020-04-01",
        "last_updated": "2025-11-23",
        "certification_date": "2025-11-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Otolaryngology",
            "state": "CA",
            "license": "203752",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lih Gen (Tracy) Lee
• Lisa Lee, MD
• Marian L. Lee, MD
• Michael W. Lee, MD
• Michelle Yoon-Ji Lee, PA-C
• Nelson H Lee, DC LAC
• Patrick Jaehee Lee
• Peter Lee
• Rebekah Subin Lee
• Ruth Lee, M.D.

• Otolaryngology Physician in Fontana, CA
• Providers in Fontana, CA by specialty
• Otolaryngology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 23, 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.