Individual provider Active NPI

Elaine Y. Weng, MD

  • Radiation Oncology Physician
  • Denver, CO
National Provider Identifier
1790892537
Registry record updated Jul 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
DR.0038621 Issued in CO
Practice address
4200 E 9TH Ave
Denver, CO 80262-0001
Phone
(303) 493-7000
NPI assigned
Aug 25, 2006
Last updated
Jul 20, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 20, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X DR.0038621 CO Primary

Addresses

Primary practice location

4200 E 9TH Ave
Denver, CO 80262-0001

Mailing address

13611 E Colfax Ave
Aurora, CO 80045-5701
Phone (303) 493-7000

Other practice location 1

14300 Orchard Pkwy
Westminster, CO 80023-9206
Phone (720) 627-4840

Other identifiers 1

IdentifierTypeStateIssuer
83635378MedicaidCO

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
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.

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
38621COMDRadiation Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Rocky Mountain Gamma Knife Center, LLC PastSince Jan 1, 2008 Accepting new patients
Mountain Radiation Oncology Radiation Oncology Past Accepting new patients

Organizations & group practices 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1156464000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784505600000",
    "number": "1790892537",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13611 E COLFAX AVE",
            "city": "AURORA",
            "state": "CO",
            "postal_code": "800455701",
            "telephone_number": "303-493-7000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4200 E 9TH AVE",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802620001",
            "telephone_number": "303-493-7000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "14300 Orchard Pkwy",
            "address_purpose": "LOCATION",
            "city": "Westminster",
            "state": "CO",
            "postal_code": "800239206",
            "country_code": "US",
            "telephone_number": "720-627-4840",
            "fax_number": "720-627-4841",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WENG",
        "first_name": "ELAINE",
        "middle_name": "Y.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-08-25",
        "last_updated": "2026-07-20",
        "certification_date": "2026-07-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "CO",
            "license": "DR.0038621",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "83635378",
            "state": "CO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.