Individual provider Active NPI

Josh O Wallsh, M.D.

  • Ophthalmology Physician
  • Torrance, CA
National Provider Identifier
1740634567
Registry record updated Apr 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Ophthalmology PhysicianTaxonomy code 207W00000X
License
A184249 Issued in CA
Practice address
4201 Torrance Blvd Ste 220
Torrance, CA 90503-4537
Phone
(310) 944-9393
Fax
(310) 944-3393
NPI assigned
Apr 18, 2016
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 13, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Ophthalmology Physician 207W00000X A184249 CA Primary
Retina Specialist (Ophthalmology) Physician 207WX0107X A184249 CA

Addresses

Primary practice location

4201 Torrance Blvd Ste 220
Torrance, CA 90503-4537

Mailing address

4201 Torrance Blvd Ste 220
Torrance, CA 90503-4537
Phone (310) 944-9393

Other practice location 1

1414 S Grand Ave Ste 105
Los Angeles, CA 90015-3078
Phone (310) 944-9393

Medicare participation

Medicare enrollment files
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: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20230711004444 CA Practitioner - Ophthalmology 8820383946 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Ophthalmology
Education
Other, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Marshall B Ketchum UniversityGroup PAC ID 9739075177, 56 clinicians
Retina Macula InstituteGroup PAC ID 3173608585, 5 clinicians

Practice addresses (Care Compare)

3916 S Broadway
Los Angeles, CA 90037-1307
Phone (323) 234-9137

4201 Torrance Blvd
Suite 220
Torrance, CA 90503-4537
Phone (310) 944-9393

Hospital & facility affiliations

  • Torrance Memorial Medical Center Hospital, Torrance, CA, CCN 050351

Merit-based Incentive Payment System (MIPS)

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

Procedures performed for Medicare patients

ProcedureNumber of procedures
Cataract surgery1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A184249CAMDOphthalmology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Retina Macula Institute Ophthalmology CurrentSince Aug 17, 2023 Accepting new patients
Marshall B. Ketchum University/University Eye Center at Los Angeles CurrentSince Jan 1, 2025 Accepting new patients
Marshall B. Ketchum University Current Accepting new patients
Marshall B. Ketchum University CurrentSince Jan 1, 2025 Accepting new patients
Glaucoma Consultants of the Capital Region,PLLC Ophthalmology PastSince Apr 1, 2021 Accepting new patients

Locations

5460 E La Palma Ave
Anaheim, CA 92807
Phone (714) 463-7500

1414 S Grand Ave
Ste 105
Los Angeles, CA 90015
Phone (213) 749-5555

1414 S Grand Ave
Los Angeles, CA 90015
Phone (213) 741-5271

3916 S Broadway
Los Angeles, CA 90037
Phone (323) 234-9137

4201 Torrance Blvd
Ste 220
Torrance, CA 90503
Phone (310) 543-4444

4201 Torrance Blvd
Torrance, CA 90503
Phone (310) 540-5503

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • FHIR API: https://fhir.meditouchehr.com/api/fhir/r4/
  • Direct secure messaging: jwallsh@rmidoc.direct.eyemdemr.com

Organizations & group practices 5

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.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1460937600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776038400000",
    "number": "1740634567",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4201 TORRANCE BLVD STE 220",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905034537",
            "telephone_number": "310-944-9393",
            "fax_number": "310-944-3393"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4201 TORRANCE BLVD STE 220",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905034537",
            "telephone_number": "310-944-9393",
            "fax_number": "310-944-3393"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1414 S Grand Ave Ste 105",
            "address_purpose": "LOCATION",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "900153078",
            "country_code": "US",
            "telephone_number": "310-944-9393",
            "fax_number": "310-944-3393",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WALLSH",
        "first_name": "JOSH",
        "middle_name": "O",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-04-18",
        "last_updated": "2026-04-13",
        "certification_date": "2026-04-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "CA",
            "license": "A184249",
            "primary": true
        },
        {
            "code": "207WX0107X",
            "taxonomy_group": "",
            "desc": "Ophthalmology, Retina Specialist",
            "state": "CA",
            "license": "A184249",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Torrance, CA

Sources for this page

Verify at the official NPI Registry.