Timothy Edward Hammill, OD

Primary specialty

OptometristTaxonomy code 152W00000X

License

OPT35322-TLG Issued in CA

Practice address

399 E Highland Ave Ste 401
San Bernardino, CA 92404-3862

Phone

(909) 327-3118

NPI assigned

Apr 15, 2021

Last updated

Aug 25, 2026By the provider in NPPES

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: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Optometry

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Azul Vision IncGroup PAC ID 2264851740, 49 clinicians

California Eye Specialists Medical Group IncGroup PAC ID 6800793381, 26 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: tammill@californiaeye.intellechartdirect.net
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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.

• Azul Vision Inc.

  dba Azul Vision

  • Ophthalmology Physician
  • Pasadena, CA
  • NPI 1285247528

  Optometrist

  Medicare reassignment Care Compare group NPD
• California Eye Specialists Medical Group, Inc

  • Specialist
  • Pasadena, CA
  • NPI 1699713099
  Medicare reassignment Care Compare group NPD
• Eyecare Specialists Medical Group, Inc

  dba Atlantis Eyecare

  • Ophthalmology Physician
  • Anaheim, CA
  • NPI 1437181930

  Optometrist

  NPD (past)

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

{
    "created_epoch": "1618444800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787616000000",
    "number": "1457932097",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "14726 RAMONA AVE STE 203",
            "city": "CHINO",
            "state": "CA",
            "postal_code": "917105730",
            "telephone_number": "626-305-9100",
            "fax_number": "951-305-0152"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "399 E HIGHLAND AVE STE 401",
            "city": "SAN BERNARDINO",
            "state": "CA",
            "postal_code": "924043862",
            "telephone_number": "909-327-3118"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAMMILL",
        "first_name": "TIMOTHY",
        "middle_name": "EDWARD",
        "credential": "OD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-04-15",
        "last_updated": "2026-08-25",
        "certification_date": "2026-08-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "CA",
            "license": "OPT35322-TLG",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sharon Simone Halter-Day
• Nazneen Samad Hamade
• Marc C Hamilton, DC
• Mirely Hamilton
• Seth Hamilton
• Linda Hammons, FNP
• Gabriel Jordan Hamstra
• Aena D Han, M.D.
• Amanda Han, OTR/L
• John C Han, DDS

• Optometrist in San Bernardino, CA
• Providers in San Bernardino, CA by specialty
• Optometrist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 25, 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.