Individual provider Active NPI

Mitchell Leslie Cassel, D.O

  • Optometrist
  • New York, NY
National Provider Identifier
1336217827
Registry record updated Aug 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
OptometristTaxonomy code 152W00000X
License
UT004231-1 Issued in NY
Practice address
63 West 49TH Street
New York, NY 10112
Phone
(212) 765-4444
Fax
(212) 765-4459
NPI assigned
Dec 1, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 4, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Optometrist 152W00000X UT004231-1 NY Primary

Addresses

Primary practice location

63 West 49TH Street
New York, NY 10112

Mailing address

63 West 49TH Street
New York, NY 10112
Phone (212) 765-4444

Other identifiers 7

IdentifierTypeStateIssuer
471822OtherAETNA
3C5493OtherHEALTHNET
2493288OtherCIGNA
9653152OtherGHI
645061OtherOXFORD
645061OtherUNITED
C362410OtherNYBCBS

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
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
I20090504000008 NY Practitioner - Optometry 0840348710 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Optometry
Education
Pennsylvania College of Optometry, 1982
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

63 W 49TH St
New York, NY 10112-1501
Phone (212) 765-4444

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
UT004231-1NYMDOptometrist

Practice roles

OrganizationSpecialtyStatusNew patients
Studio Optix Inc Optometrist CurrentSince Jul 1, 2008 Accepting new patients

Locations

55 W 49th St
New York, NY 10112
Phone (212) 765-4444

63 W 49th St
New York, NY 10112
Phone (212) 765-4444

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": "1164931200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754265600000",
    "number": "1336217827",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "63 WEST 49TH STREET",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "10112",
            "telephone_number": "212-765-4444",
            "fax_number": "212-765-4459"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "63 WEST 49TH STREET",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "10112",
            "telephone_number": "212-765-4444",
            "fax_number": "212-765-4459"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASSEL",
        "first_name": "MITCHELL",
        "middle_name": "LESLIE",
        "credential": "D.O",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-12-01",
        "last_updated": "2025-08-04",
        "certification_date": "2025-08-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "NY",
            "license": "UT004231-1",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AETNA",
            "identifier": "471822",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "HEALTHNET",
            "identifier": "3C5493",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CIGNA",
            "identifier": "2493288",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "GHI",
            "identifier": "9653152",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "OXFORD",
            "identifier": "645061",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "UNITED",
            "identifier": "645061",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "C362410",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.