Katherine Ngo, OD

Primary specialty

OptometristTaxonomy code 152W00000X

License

36300 Issued in CA

Practice address

197 W El Portal Dr Ste a
Merced, CA 95348-2850

Phone

(209) 384-2110

Fax

(209) 384-8756

NPI assigned

Apr 14, 2025

Sex

Female

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

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Specialty

Optometry

Education

Southern California College of Optometry, 2026

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

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.

• Healthy Eyes Optometry Inc

  • Optometrist
  • Folsom, CA
  • NPI 1316135759
  NPD

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

{
    "created_epoch": "1744588800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785369600000",
    "number": "1245025816",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "197 W EL PORTAL DR STE A",
            "city": "MERCED",
            "state": "CA",
            "postal_code": "953482850",
            "telephone_number": "209-384-2110",
            "fax_number": "209-384-8756"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "197 W EL PORTAL DR STE A",
            "city": "MERCED",
            "state": "CA",
            "postal_code": "953482850",
            "telephone_number": "209-384-2110",
            "fax_number": "209-384-8756"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NGO",
        "first_name": "KATHERINE",
        "credential": "OD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-04-14",
        "last_updated": "2026-07-30",
        "certification_date": "2026-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "CA",
            "license": "36300",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jamie A Newman
• Jason Wayne Newman, CERTIFIED
• Karla D Newman, C037060316
• Madalyn Denice Newman
• May Pingol Newman, MD
• Brian Hien Nguyen
• Cassandra Nguyen
• Deanna Tuongvy Nguyen
• Haison Nguyen, PT
• Khang Cong Nguyen, DDS

• Optometrist in Merced, CA
• Providers in Merced, CA by specialty
• Optometrist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 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.
• 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.