Hao Q To, MD

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

A210604 Issued in CA

Practice address

2279 45TH St
Sacramento, CA 95817-1514

Phone

(916) 734-5959

Fax

(916) 703-5265

NPI assigned

Mar 24, 2023

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in WA

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1679616000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784073600000",
    "number": "1417650862",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4501 X ST",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958172229",
            "telephone_number": "916-734-3772"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2279 45TH ST",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958171514",
            "telephone_number": "916-734-5959",
            "fax_number": "916-703-5265"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TO",
        "first_name": "HAO",
        "middle_name": "Q",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2023-03-24",
        "last_updated": "2026-07-15",
        "certification_date": "2026-07-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "61426281",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "A210604",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• TLCS, Inc.
• TLCS, Inc.
• TLCS, Inc.
• Angelina Deeanh To
• Chee Wo To
• Salina To
• Toan Van on
• Laricia Nicole Tobias
• Patrick Tobias Jr.
• Jasmine Marigold Tobin

• Hematology & Oncology Physician in Sacramento, CA
• Providers in Sacramento, CA by specialty
• Hematology & Oncology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 15, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.