Individual provider Active NPI

Frank Paul Castaldi, DO

  • Optometrist
  • Stamford, CT
National Provider Identifier
1043396302
Registry record updated Aug 15, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
OptometristTaxonomy code 152W00000X
License
1074 Issued in CT
Practice address
1351 Washington Blvd Ste 601a
Stamford, CT 06902-2450
Phone
(203) 324-1606
Fax
(203) 324-4357
NPI assigned
Oct 30, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 15, 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 1074 CT Primary

Addresses

Primary practice location

1351 Washington Blvd Ste 601a
Stamford, CT 06902-2450

Mailing address

1351 Washington Blvd Ste 601a
Stamford, CT 06902-2450
Phone (203) 324-1606

Other identifiers 3

IdentifierTypeStateIssuer
090001074CT01OtherCTANTHEM
004068409MedicaidCT
7359876831OtherCTCONNECTICARE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT
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

Enrollment IDStateProvider typePAC IDDetails
I20110712000661 CT Practitioner - Optometry 3870761109 Practice locations: Stamford, CT

Care Compare profile

Medicare Care Compare
Specialty
Optometry
Education
Pennsylvania College of Optometry, 1984
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

1 Bank St
Stamford, CT 06901-3006

1 Bank St Ground Level
Stamford, CT 06901-3006
Phone (203) 324-1606

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as individual
Quality
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
1074CTMDBehavioral Analyst
001074CTMDPhysical Therapy Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Vision Consultants Optometrist Past 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 and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1162166400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786752000000",
    "number": "1043396302",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1351 WASHINGTON BLVD STE 601A",
            "city": "STAMFORD",
            "state": "CT",
            "postal_code": "069022450",
            "telephone_number": "203-324-1606",
            "fax_number": "203-324-4357"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1351 WASHINGTON BLVD STE 601A",
            "city": "STAMFORD",
            "state": "CT",
            "postal_code": "069022450",
            "telephone_number": "203-324-1606",
            "fax_number": "203-324-4357"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASTALDI",
        "first_name": "FRANK",
        "middle_name": "PAUL",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-10-30",
        "last_updated": "2026-08-15",
        "certification_date": "2026-08-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "CT",
            "license": "1074",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "ANTHEM",
            "identifier": "090001074CT01",
            "state": "CT"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "004068409",
            "state": "CT"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CONNECTICARE",
            "identifier": "7359876831",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Stamford, CT

Sources for this page

Verify at the official NPI Registry.