Russell David Himmelstein, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

73725 Issued in CT

Practice address

51 N Elm St
Waterbury, CT 06702-1545

Phone

(203) 574-4000

Fax

(203) 574-4003

NPI assigned

Mar 24, 2020

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 CT

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

Interoperability endpoints

• Direct secure messaging: rhimmelstein614152@direct.ynhh.org

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.

• Greenwich Hospital

  • General Acute Care Hospital
  • Greenwich, CT
  • NPI 1609846088
  Medicare reassignment NPD
• Yale University

  • Anesthesiology Physician
  • New Haven, CT
  • NPI 1205822236

  Pediatrics

  Medicare reassignment NPD
• Greenwich Hospital

  • Community Based Hospice Care Agency
  • Stanford, CT
  • NPI 1073637724
  NPD
• Yale University

  • Adult Mental Health Clinic/Center
  • Hamden, CT
  • NPI 1134391824
  NPD
• Yale University

  • Durable Medical Equipment & Medical Supplies
  • Fairfield, CT
  • NPI 1548066962
  NPD

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

{
    "created_epoch": "1585008000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780272000000",
    "number": "1376170993",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20 YORK ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-688-4242"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "51 N ELM ST",
            "city": "WATERBURY",
            "state": "CT",
            "postal_code": "067021545",
            "telephone_number": "203-574-4000",
            "fax_number": "203-574-4003"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "20 York St",
            "address_purpose": "LOCATION",
            "city": "New Haven",
            "state": "CT",
            "postal_code": "065103220",
            "country_code": "US",
            "telephone_number": "203-688-4242",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HIMMELSTEIN",
        "first_name": "RUSSELL",
        "middle_name": "DAVID",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-24",
        "last_updated": "2026-06-01",
        "certification_date": "2026-06-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CT",
            "license": "73725",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Highland Family Dental
• David G. Hill, MD
• Jenelle Hill, MSW,BASW,LMSW
• John Joseph Hillgen IV, D.M.D.
• Samantha E Hilse
• Kristen Elizabeth Hines, MD
• Patti Hinrichs, HSBCP
• Gustavo Hirata Dellavia Sr.
• Gazala Hitawala
• Elaine Hlavacek, MS,NCSP

• Pediatrics Physician in Waterbury, CT
• Providers in Waterbury, CT by specialty
• Pediatrics Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 1, 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.