Individual provider Active NPI

Tuyetha Duc Mai, O.D.

  • Optometrist
  • Palo Alto, CA
National Provider Identifier
1619939980
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
OptometristTaxonomy code 152W00000X
License
12389T Issued in CA
Practice address
605 Stanford Shopping Ctr
Palo Alto, CA 94304-1403
Phone
(650) 327-2840
Fax
(650) 327-2843
NPI assigned
Apr 3, 2006
Last updated
Jul 13, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Optometrist 152W00000X 12389T CA Primary

Addresses

Primary practice location

605 Stanford Shopping Ctr
Palo Alto, CA 94304-1403

Mailing address

605 Stanford Shopping Ctr
Palo Alto, CA 94304-1403
Phone (650) 327-2840

Other names 1

  • Dr. Monique Tuyetha Duc Mai Professional name

Medicare participation

Medicare enrollment files
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.

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
12389TCAMDOptometrist

Practice roles

OrganizationSpecialtyStatusNew patients
Prospectacles Optometry Inc. Optometrist PastSince Jun 6, 2026 Accepting new patients

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1144022400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1619939980",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "605 STANFORD SHOPPING CTR",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041403",
            "telephone_number": "650-327-2840",
            "fax_number": "650-327-2843"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "605 STANFORD SHOPPING CTR",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041403",
            "telephone_number": "650-327-2840",
            "fax_number": "650-327-2843"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAI",
        "first_name": "TUYETHA",
        "middle_name": "DUC",
        "name_prefix": "Dr.",
        "credential": "O.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-04-03",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "CA",
            "license": "12389T",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MONIQUE TUYETHA",
            "last_name": "MAI",
            "middle_name": "DUC",
            "prefix": "DR.",
            "credential": "O.D.",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.