Rachel Simone Frenklak Sivan, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

328477-01 Issued in NY

Practice address

26901 76TH Ave
New Hyde Park, NY 11040-1433

Phone

(718) 470-3000

NPI assigned

Apr 12, 2021

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Rachel Simone Frenklak Former name

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

Pediatric Medicine

Education

Other, 2021

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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.

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  Medicare reassignment

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

{
    "created_epoch": "1618185600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777507200000",
    "number": "1396325668",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3021 ARLINGTON AVE",
            "city": "BRONX",
            "state": "NY",
            "postal_code": "104633310",
            "telephone_number": "916-690-9570"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "26901 76TH AVE",
            "city": "NEW HYDE PARK",
            "state": "NY",
            "postal_code": "110401433",
            "telephone_number": "718-470-3000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIVAN",
        "first_name": "RACHEL",
        "middle_name": "SIMONE FRENKLAK",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-12",
        "last_updated": "2026-04-30",
        "certification_date": "2026-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NY",
            "license": "328477",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NY",
            "license": "328477-01",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "RACHEL",
            "last_name": "FRENKLAK",
            "middle_name": "SIMONE",
            "credential": "BS",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Gnanendra S Sinha, LMSW,ACSW
• Vidushi Sinha, MD
• Sara Siskind, M.D.
• Eric Sita
• Stephen Siu, PA-C
• SJT Counseling & Psychotherapy
• Nina Skaria, NP
• Linell De-Silva Skeene, M.D.
• Skilled Physical Therapy, LLC
• Victoria Smarkucki

• Pediatrics Physician in New Hyde Park, NY
• Providers in New Hyde Park, NY by specialty
• Pediatrics Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 30, 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.