Joshua Ephraim Chesir, M.D.

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

155174 Issued in NY

Practice address

337 N Main St
Suite 4
New City, NY 10956-4310

Phone

(845) 634-7900

Fax

(845) 634-0632

NPI assigned

Aug 9, 2005

Sex

Male

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

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

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

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: joshua.chesir.p1@direct.cwpw.nextgenshare.com

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.

• Boston Children's Health Physicians, LLP

  • Pediatrics Physician
  • Hawthorne, NY
  • NPI 1467454967
  Medicare reassignment NPD
• Boston Childrens Health Physicians LLP

  dba Boston Childrens Health Physicians Pediatric Endocrinology Division

  • Clinical Medical Laboratory
  • Sleepy Hollow, NY
  • NPI 1588651079
  NPD

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

{
    "created_epoch": "1123545600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1821099235",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "337 N MAIN ST",
            "address_2": "SUITE 4",
            "city": "NEW CITY",
            "state": "NY",
            "postal_code": "109564310",
            "telephone_number": "845-634-7900",
            "fax_number": "845-634-0632"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "337 N MAIN ST",
            "address_2": "SUITE 4",
            "city": "NEW CITY",
            "state": "NY",
            "postal_code": "109564310",
            "telephone_number": "845-634-7900",
            "fax_number": "845-634-0632"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHESIR",
        "first_name": "JOSHUA",
        "middle_name": "EPHRAIM",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-09",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NY",
            "license": "155174",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mary Chatterton, PT
• Hui Chen Chen
• Alan Jeffrey Chernick, D.D.S.
• Susan Chertok
• Cheryl Kalter-Schloss LCSW PC
• Shirnette Chin, FNP-C
• Chiropractic Health, P.C. (Dr. Randy Russo Chiropractic Health P.C.)
• Michael Cho, L.AC.
• Tina K Cho, DDS
• Jae-Hak Choe

• Pediatrics Physician in New City, NY
• Providers in New City, 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 Jul 13, 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.