Yevhen Reznyk, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

276398 Issued in NY

Practice address

75 N Country Rd
Port Jefferson, NY 11777-2119

Phone

(631) 686-7654

NPI assigned

Jan 11, 2012

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

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: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal MedicineAlso: Hospitalist

Education

Other, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

24 On Physicians PCGroup PAC ID 5698688141, 274 clinicians

John T Mather Memorial HospitalGroup PAC ID 1254237753, shared by 6 NPIs, 176 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• John T Mather Memorial Hospital of Port Jefferson Hospital, Port Jefferson, NY, CCN 330185
• St John'S Episcopal Hospital at South Shore Hospital, Far Rockaway, NY, CCN 330395

Merit-based Incentive Payment System (MIPS)

Final score

93.07 of 100Reported as apm

Quality

79.77

Promoting interoperability

88.77

Improvement activities

40

Merit-based Incentive Payment System (MIPS)

Final score

88.96 of 100Reported as group

Quality

77.5

Improvement activities

40

Cost

74.58

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H5989

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.

• 24 On Physicians, PC

  • Hospitalist Physician
  • Far Rockaway, NY
  • NPI 1578781787
  Medicare reassignment Care Compare group NPD
• John T. Mather Memorial Hospital

  • Psychiatry Physician
  • Port Jefferson Station, NY
  • NPI 1376642371
  Medicare reassignment NPD
• John T. Mather Memorial Hospital

  • Critical Care Medicine (Internal Medicine) Physician
  • Port Jefferson, NY
  • NPI 1467249334
  Medicare reassignment NPD
• John T. Mather Memorial Hospital

  • Adult Health Nurse Practitioner
  • Port Jefferson, NY
  • NPI 1396834750
  NPD
• John T. Mather Memorial Hospital

  • Hospitalist Physician
  • Port Jefferson, NY
  • NPI 1932296316
  NPD
• 24 On Physicians, P.C.

  • Hospitalist Physician
  • Attleboro, MA
  • NPI 1790104511
  NPD
• Episcopal Health Services Inc

  • General Acute Care Hospital
  • Far Rockaway, NY
  • NPI 1346274537
  NPD (past)
• John T. Mather Memorial Hospital

  • General Acute Care Hospital
  • Port Jefferson, NY
  • NPI 1093718728
  NPD (past)

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

• John T. Mather Memorial Hospital

  • General Acute Care Hospital
  • Port Jefferson, NY
  • NPI 1093718728
  Care Compare affiliation

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

{
    "created_epoch": "1326240000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763424000000",
    "number": "1720358575",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "75 N COUNTRY RD",
            "address_2": "J MATHER HOSPITAL, DEPARTMENT OF HOSPITAL MEDICINE",
            "city": "PORT JEFFERSON",
            "state": "NY",
            "postal_code": "117772119",
            "telephone_number": "631-473-1320"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "75 N COUNTRY RD",
            "city": "PORT JEFFERSON",
            "state": "NY",
            "postal_code": "117772119",
            "telephone_number": "631-686-7654"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "REZNYK",
        "first_name": "YEVHEN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-01-11",
        "last_updated": "2025-11-18",
        "certification_date": "2025-11-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NY",
            "license": "276398",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "276398",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lisa Jill Reilly, LCSW
• Wayne Reizner
• Jacqueline Lucille Renda, LCSW-R
• Harish Kumar Rengarajan, MD
• Sara Nicole Resch, PHD
• Firooz Rezvani, MD
• Christopher J Rhodes, P.A.
• Richard Dranitzke, MD
• Amy Renee Richter, MD
• Gabrielle Liane Richter

• Internal Medicine Physician in Port Jefferson, NY
• Providers in Port Jefferson, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 18, 2025; 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.