William Sigmund, OD

Primary specialty

OptometristTaxonomy code 152W00000X

License

2025022556 Issued in MO

Practice address

1140 Tom Ginnever Ave
O Fallon, MO 63366-4530

Phone

(636) 272-1444

NPI assigned

Jun 14, 2025

Last updated

Jun 14, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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 MO

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

University of Missouri St Louis - School of Optometry, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Iverson-Tomasino Eyecare IncGroup PAC ID 0446327639, 4 clinicians

Practice addresses (Care Compare)

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Iverson-Tomasino Eyecare Inc

  • Optometrist
  • O'Fallon, MO
  • NPI 1548386758
  Medicare reassignment Care Compare group NPD
• Ophthalmology Consultants, LLC

  • Durable Medical Equipment & Medical Supplies
  • Saint Louis, MO
  • NPI 1659799575
  NPD (past)

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

{
    "created_epoch": "1749859200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749859200000",
    "number": "1477449726",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1140 TOM GINNEVER AVE",
            "city": "O FALLON",
            "state": "MO",
            "postal_code": "633664530",
            "telephone_number": "636-272-1444"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1140 TOM GINNEVER AVE",
            "city": "O FALLON",
            "state": "MO",
            "postal_code": "633664530",
            "telephone_number": "636-272-1444"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIGMUND",
        "first_name": "WILLIAM",
        "credential": "OD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-06-14",
        "last_updated": "2025-06-14",
        "certification_date": "2025-06-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "MO",
            "license": "2025022556",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Vicki M Shoemaker
• Jessica R Shultz
• Susan L. Shuman, PSYD
• Laura Michelle Sibley, OTRL
• Side by Side Wellness LLC
• Heidi Sue Sikma, LPC
• John K Silberberg, D.D.S.
• Carrie Silver Stock, MSW, LCSW
• Svetlana Simonyan
• Makenna Singh, COTA/L

• Optometrist in O'Fallon, MO
• Providers in O'Fallon, MO by specialty
• Optometrist in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 14, 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.