Kathy Chyjek Matthews, M.D.

Primary specialty

Maternal & Fetal Medicine PhysicianTaxonomy code 207VM0101X

License

25MA10872500 Issued in NJ

Practice address

525 E 68TH St
New York, NY 10065-4870

Phone

(212) 746-3225

Fax

(212) 746-8008

NPI assigned

Jul 8, 2013

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other names 1

• Dr. Kathy Chyjek Former name

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in NJ

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: kathy.chyjek.matthews.1@32861.direct.athenahealth.com
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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.

• New Jersey Perinatal Assoc. LLC

  • Specialist
  • Livingston, NJ
  • NPI 1487696779

  Single Specialty

  Medicare reassignment NPD
• Bergen Perinatal Associates, LLC

  • Maternal & Fetal Medicine Physician
  • Teaneck, NJ
  • NPI 1053609867
  NPD (past)
• Lifeline Medical Associates, LLC

  • Obstetrics & Gynecology Physician
  • Florham Park, NJ
  • NPI 1821041617

  Single Specialty

  NPD (past)

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

{
    "created_epoch": "1373241600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785715200000",
    "number": "1346681228",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "525 E 68TH ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100654870",
            "telephone_number": "212-746-3225",
            "fax_number": "212-746-8008"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "525 E 68TH ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100654870",
            "telephone_number": "212-746-3225",
            "fax_number": "212-746-8008"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MATTHEWS",
        "first_name": "KATHY",
        "middle_name": "CHYJEK",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2013-07-08",
        "last_updated": "2026-08-03",
        "certification_date": "2026-08-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VM0101X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Maternal & Fetal Medicine",
            "state": "NJ",
            "license": "25MA10872500",
            "primary": true
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Obstetrics & Gynecology",
            "state": "NY",
            "license": "289229",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "kcm9013@med.cornell.edu",
            "affiliation": "N",
            "address_1": "525 E 68th St",
            "city": "New York",
            "state": "NY",
            "country_code": "US",
            "postal_code": "100654870",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "KATHY",
            "last_name": "CHYJEK",
            "prefix": "DR.",
            "credential": "M.D.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Christopher Matthews
• Crystal Matthews, NP
• Elizabeth A Matthews, ACNP
• Jason W Matthews, MSPT, OCS, COMT
• Jessica Matthews, MSW, LCSW, LICSW
• Lillian Matthews, DPM
• Mari Victoria Matthews
• Monique Jasmin Matthews
• Rachael Matthews, PH.D.
• Richard Matthews

• Maternal & Fetal Medicine Physician in New York, NY
• Providers in New York, NY by specialty
• Maternal & Fetal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 3, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.