NPIMap

Individual provider Active NPI

Bailee Williams Olliff, M.D.

  • Trauma Surgery Physician
  • Denver, CO
National Provider Identifier
1497117428
Registry record updated Jan 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Trauma Surgery PhysicianTaxonomy code 2086S0127X
License
DR.0065843 Issued in CO
Practice address
777 Bannock St
Denver, CO 80204-4597
Phone
(303) 436-4949
NPI assigned
Mar 29, 2016
Last updated
Jan 6, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 6, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Trauma Surgery Physician 2086S0127X DR.0065843 CO Primary
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

777 Bannock St
Denver, CO 80204-4597

Mailing address

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

Other names 1

  • Bailee Danyel Williams Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO, TX2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20221010000027 CO Practitioner - General SurgeryPractitioner - Anesthesiology 9234535980 Reassigns benefits to 4 organizations
I20250918004042 TX Practitioner - General Surgery 9234535980 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
Other, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Colorado Surgical and Critical Care Associates PLLCGroup PAC ID 7810978095, 22 clinicians

Practice addresses (Care Compare)

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

9395 Crown Crest Blvd
Parker, CO 80138-8573
Phone (303) 269-4000

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
DR.0065843COMDTrauma Surgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Colorado Surgical and Critical Care Associates PLLC CurrentSince Sep 1, 2025 Accepting new patients
Tacs Colorado Trauma Surgery CurrentSince Mar 15, 2024 Accepting new patients
Denver Health and Hospital Authority CurrentSince Dec 7, 2025 Accepting new patients
Vista Surgical Group Trauma Surgery CurrentSince Jul 1, 2024 Accepting new patients
Denver Health and Hospital Authority CurrentSince Dec 7, 2025 Accepting new patients
Urgent Specialty Associates of Texas, PLLC CurrentSince Aug 25, 2025 Accepting new patients
Denver Health and Hospital Authority Past Accepting new patients
Denver Health and Hospital Authority Past Accepting new patients
HCA Healthone LLC Past Accepting new patients

Locations

1501 S Potomac St
Denver, CO 80012
Phone (303) 695-2604

777 Bannock St
Denver, CO 80204

777 Bannock St
Ste MC3450
Denver, CO 80204

601 E Hampden Ave
Ste 200
Englewood, CO 80113
Phone (303) 788-5300

501 E Hampden Ave
Englewood, CO 80113
Phone (303) 788-5300

10101 Ridgegate Pkwy
Lone Tree, CO 80124
Phone (720) 225-1000

9395 Crown Crest Blvd
Parker, CO 80138
Phone (303) 269-4000

9141 Grant St
Ste 235
Thornton, CO 80229
Phone (303) 252-0100

9191 Grant St
Thornton, CO 80229
Phone (303) 246-5003

13500 Powers Ct
Ste 230
Fort Myers, FL 33912
Phone (239) 610-0784

500 W Medical Center Blvd
Webster, TX 77598
Phone (713) 447-4650

Interoperability endpoints

  • Direct secure messaging: bolliff323393@direct.dhha.org

Organizations & group practices 9

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 20

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

View all 20

NPI Registry JSON

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

{
    "created_epoch": "1459209600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767657600000",
    "number": "1497117428",
    "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": "OLLIFF",
        "first_name": "BAILEE",
        "middle_name": "WILLIAMS",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-03-29",
        "last_updated": "2026-01-06",
        "certification_date": "2026-01-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086S0127X",
            "taxonomy_group": "",
            "desc": "Surgery, Trauma Surgery",
            "state": "CO",
            "license": "DR.0065843",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "BAILEE",
            "last_name": "WILLIAMS",
            "middle_name": "DANYEL",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.