Karen Chen, OD

Primary specialty

OptometristTaxonomy code 152W00000X

License

27OA00744500 Issued in NJ

Practice address

117 Sparta Ave
Sparta, NJ 07871-1773

Phone

(973) 729-9199

NPI assigned

Jul 9, 2026

Last updated

Jul 9, 2026By the provider in NPPES

Sex

Female

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

Not listed in the public Medicare enrollment file

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.

Specialty

Optometry

Education

State University of New York - State College Optometry, 2026

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Practice roles

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.

• Northwest Optometry Group, P.a.

  dba Sparta Eye Associates

  • Optometrist
  • Sparta, NJ
  • NPI 1770757379
  NPD (past)
• Northwest Optometry Group, P.a.

  • Optometrist
  • Sparta, NJ
  • NPI 1801853254
  NPD (past)

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

{
    "created_epoch": "1783555200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783555200000",
    "number": "1609794346",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "117 SPARTA AVE",
            "city": "SPARTA",
            "state": "NJ",
            "postal_code": "078711773",
            "telephone_number": "973-729-9199"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "117 SPARTA AVE",
            "city": "SPARTA",
            "state": "NJ",
            "postal_code": "078711773",
            "telephone_number": "973-729-9199"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "438 County Road 513 Ste 12",
            "address_purpose": "LOCATION",
            "city": "Califon",
            "state": "NJ",
            "postal_code": "078304187",
            "country_code": "US",
            "telephone_number": "908-832-9211",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 US Highway 206",
            "address_purpose": "LOCATION",
            "city": "Branchville",
            "state": "NJ",
            "postal_code": "078264234",
            "country_code": "US",
            "telephone_number": "973-948-7272",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHEN",
        "first_name": "KAREN",
        "credential": "OD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-07-09",
        "last_updated": "2026-07-09",
        "certification_date": "2026-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "NJ",
            "license": "27OA00744500",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Morgan Cerbo
• Mecca Constance Cerny, LCSW
• Oscar Enrique Cespedes
• Marvin Barry Chartoff, ED.D
• Jumana Chatiwala, M.D.
• Uday Chinaiwala
• Chiropractic Health Clinic of Sparta, LLC
• Lorraine Chletsos, RDN
• Joseph Cifelli
• Rose Melody F Cimafranca, FNP-C

• Optometrist in Sparta, NJ
• Providers in Sparta, NJ by specialty
• Optometrist in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 9, 2026; 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.