NPIMap

Individual provider Active NPI

Nathaniel Elliot Schaffer, MD, PHD

  • Orthopaedic Trauma Physician
  • Denver, CO
National Provider Identifier
1679001747
Registry record updated Aug 20, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Trauma PhysicianTaxonomy code 207XX0801X
License
0075582 Issued in CO
Practice address
777 Bannock St
Denver, CO 80204-4597
Phone
(303) 436-4949
NPI assigned
Jun 1, 2017
Last updated
Aug 20, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 20, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Orthopaedic Surgery Physician 207X00000X 4301112013 MI
Orthopaedic Trauma Physician 207XX0801X 65391 TN
Orthopaedic Trauma Physician 207XX0801X MD61443193 WA
Orthopaedic Trauma Physician 207XX0801X 0075582 CO Primary

Addresses

Primary practice location

777 Bannock St
Denver, CO 80204-4597

Mailing address

777 Bannock St
Denver, CO 80204-4597
Phone (303) 436-4949

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address nschaffer720210@direct.vumc.org Direct

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
I20250825004370 CO Practitioner - Orthopedic Surgery 5193086304 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic Surgery
Education
University of Texas Southwestern Medical School at Dallas, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

777 Bannock St
Denver, CO 80204-4507
Phone (303) 436-6000

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Hip replacement1-10
Melanoma (skin cancer) excision1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
0075582COMDOrthopaedic Trauma Physician
MD61443193WAMDOrthopaedic Trauma Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Western Washington Medical Group, Inc PS CurrentSince Sep 1, 2023 Accepting new patients
Western Washington Medical Group, Inc PS Current Accepting new patients
Western Washington Medical Group, Inc PS CurrentSince Sep 1, 2023 Accepting new patients
Denver Health and Hospital Authority CurrentSince Jun 17, 2025 Accepting new patients
Denver Health and Hospital Authority CurrentSince Jun 17, 2025 Accepting new patients
Denver Health and Hospital Authority Past Accepting new patients
Providence Health & Services-Wa Past Accepting new patients
Denver Health and Hospital Authority Past Accepting new patients

Locations

777 Bannock St
Denver, CO 80204

1728 W Marine View Dr
Ste 110
Everett, WA 98201
Phone (425) 259-4041

3726 Broadway
Ste 201
Everett, WA 98201
Phone (425) 317-9119

4225 Hoyt Ave
Ste A
Everett, WA 98203
Phone (425) 259-3122

Interoperability endpoints

  • Direct secure messaging: nschaffer310906@direct.dhha.org
  • Direct secure messaging: nschaffer753317@direct.multicare.org

Organizations & group practices 8

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.

Hospital & facility affiliations 5

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

NPI Registry JSON

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

{
    "created_epoch": "1496275200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755648000000",
    "number": "1679001747",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "777 BANNOCK ST",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802044597",
            "telephone_number": "303-436-4949"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "777 BANNOCK ST",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802044597",
            "telephone_number": "303-436-4949"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SCHAFFER",
        "first_name": "NATHANIEL",
        "middle_name": "ELLIOT",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-06-01",
        "last_updated": "2025-08-20",
        "certification_date": "2025-08-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "MI",
            "license": "4301112013",
            "primary": false
        },
        {
            "code": "207XX0801X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Orthopaedic Trauma",
            "state": "TN",
            "license": "65391",
            "primary": false
        },
        {
            "code": "207XX0801X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Orthopaedic Trauma",
            "state": "WA",
            "license": "MD61443193",
            "primary": false
        },
        {
            "code": "207XX0801X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Orthopaedic Trauma",
            "state": "CO",
            "license": "0075582",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "nschaffer720210@direct.vumc.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Health Information Service Provider",
            "address_1": "1215 21st Ave S # McE4200",
            "city": "Nashville",
            "state": "TN",
            "country_code": "US",
            "postal_code": "372325328",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.