Individual provider Active NPI

Mary C Blatt, OD

  • Optometrist
  • Saint Louis, MO
National Provider Identifier
1437154499
Registry record updated May 9, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
OptometristTaxonomy code 152W00000X
License
T03121 Issued in MO
Practice address
450 N New Ballas Rd
Dept Ophthalmology, Ste 260
Saint Louis, MO 63141-6859
Phone
(314) 362-3937
Fax
(866) 505-8818
NPI assigned
Jun 16, 2005
Last updated
May 9, 2024By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 9, 2024

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Optometrist 152W00000X T03121 MO Primary

Addresses

Primary practice location

450 N New Ballas Rd
Dept Ophthalmology, Ste 260
Saint Louis, MO 63141-6859

Mailing address

PO Box 60352
Saint Louis, MO 63160-0352
Phone (314) 362-3937

Other identifiers 1

IdentifierTypeStateIssuer
317834034MedicaidMO

Electronic endpoints 1

TypeEndpointUseAffiliation
FHIR URL https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ Washington University

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20100717000095 MO Practitioner - Optometry 3678605284 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Optometry
Education
Other, 1993
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mercy Clinic Ophthalmology LLCGroup PAC ID 1951544428, 17 clinicians
Mercy Health Services LLCGroup PAC ID 2264329168, 3 clinicians

Practice addresses (Care Compare)

621 S New Ballas Rd
Suite 140a
Saint Louis, MO 63141-8254
Phone (314) 251-5300

901 Patients 1St Dr
Suite 2600
Washington, MO 63090-4700
Phone (636) 239-8345

Merit-based Incentive Payment System (MIPS)

Final score
84.2 of 100Reported as group
Quality
71.6
Promoting interoperability
100
Improvement activities
40
Cost
75.75

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
T03121MOMDOptometrist

Practice roles

OrganizationSpecialtyStatusNew patients
Mercy Clinic Ophthalmology LLC CurrentSince Aug 18, 2025 Accepting new patients
Washington University CurrentSince Mar 19, 2018 Accepting new patients
Mercy Health Services, LLC Optometrist Current Accepting new patients
Visionworks, Inc. Optometrist CurrentSince Jun 1, 2025 Accepting new patients
Visionworks, Inc CurrentSince Jun 1, 2025 Accepting new patients
Mercy Health Services, LLC Optometrist CurrentSince Aug 18, 2025 Accepting new patients
Washington University CurrentSince Mar 19, 2018 Accepting new patients
Mercy Health Services, LLC Optometrist Past Accepting new patients

Locations

101 N Range Line Rd
Spc 346
Joplin, MO 64801
Phone (417) 623-8620

8600 Ward Pkwy
Ste 710
Kansas City, MO 64114
Phone (816) 523-8882

34 Hampton Village Plz
Saint Louis, MO 63109
Phone (314) 251-6430

450 N New Ballas Rd
Ste 260
Saint Louis, MO 63141
Phone (314) 966-3300

4901 Forest Park Ave
Fl 6
Saint Louis, MO 63108

621 S New Ballas Rd
Ste 140A
Saint Louis, MO 63141
Phone (314) 251-5300

660 S Euclid Ave
Saint Louis, MO 63110

660 S Euclid Ave
#8096
Saint Louis, MO 63110
Phone (314) 362-3935

2825 S Glenstone Ave
Ste F11
Springfield, MO 65804
Phone (417) 882-3692

901 Patients First Dr
Ste 2600
Washington, MO 63090
Phone (636) 231-3651

Organizations & group practices 8

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": "1118880000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1715212800000",
    "number": "1437154499",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 60352",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631600352",
            "telephone_number": "314-362-3937",
            "fax_number": "866-505-8818"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "450 N NEW BALLAS RD",
            "address_2": "DEPT OPHTHALMOLOGY, STE 260",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631416859",
            "telephone_number": "314-362-3937",
            "fax_number": "866-505-8818"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BLATT",
        "first_name": "MARY",
        "middle_name": "C",
        "name_prefix": "Dr.",
        "credential": "OD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-06-16",
        "last_updated": "2024-05-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "MO",
            "license": "T03121",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "317834034",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "450 N New Ballas Rd",
            "address_2": "DEPT OPHTHALMOLOGY, STE 260",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631416859",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Saint Louis, MO

Sources for this page

Verify at the official NPI Registry.