NPIMap

Individual provider Active NPI

Samuel Marc Lazaroff, MD

  • Rheumatology Physician
  • Aurora, CO
National Provider Identifier
1750944989
Registry record updated Jun 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Rheumatology PhysicianTaxonomy code 207RR0500X
License
DR.0070753 Issued in CO
Practice address
1635 Aurora CT
Aurora, CO 80045-2517
Phone
(720) 848-0000
NPI assigned
Apr 14, 2019
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 8, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Rheumatology Physician 207RR0500X DR.0070753 CO Primary

Addresses

Primary practice location

1635 Aurora CT
Aurora, CO 80045-2517

Mailing address

PO Box 110429
Aurora, CO 80042-0429

Other practice location 1

13123 E 16th Ave
Aurora, CO 80045-7106
Phone (720) 777-6132

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260616001223 CO Practitioner - RheumatologyPractitioner - Internal Medicine 1951761337 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
RheumatologyAlso: Internal Medicine
Education
Ohio State University College of Medicine, 2019
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

PO Box
Suite 110429
Aurora, CO 80042

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Children's Hospital Colorado Current Accepting new patients
Vanderbilt University Medical Center PastSince Jul 1, 2020 Accepting new patients

Locations

13123 E 16th Ave
Aurora, CO 80045
Phone (720) 777-3846

Interoperability endpoints

  • Direct secure messaging: slazaroff265004@direct.childrenscolorado.org

Organizations & group practices 3

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.

Hospital & facility affiliations 27

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

View all 27

NPI Registry JSON

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

{
    "created_epoch": "1555200000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780876800000",
    "number": "1750944989",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 110429",
            "city": "AURORA",
            "state": "CO",
            "postal_code": "800420429"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1635 AURORA CT",
            "city": "AURORA",
            "state": "CO",
            "postal_code": "800452517",
            "telephone_number": "720-848-0000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "13123 E 16th Ave",
            "address_purpose": "LOCATION",
            "city": "Aurora",
            "state": "CO",
            "postal_code": "800457106",
            "country_code": "US",
            "telephone_number": "720-777-6132",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LAZAROFF",
        "first_name": "SAMUEL",
        "middle_name": "MARC",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-04-14",
        "last_updated": "2026-06-08",
        "certification_date": "2026-06-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "CO",
            "license": "DR.0070753",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Aurora, CO

Sources for this page

Verify at the official NPI Registry.