Individual provider Active NPI

Michael William, MD

  • Sleep Medicine (Internal Medicine) Physician
  • Frisco, TX
National Provider Identifier
1669931440
Registry record updated Mar 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Sleep Medicine (Internal Medicine) PhysicianTaxonomy code 207RS0012X
License
U2037 Issued in TX
Practice address
2840 Legacy Dr Ste 400
Frisco, TX 75034-6055
Phone
(469) 200-6100
NPI assigned
Mar 19, 2019
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 6, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Sleep Medicine (Internal Medicine) PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RS0012X U2037 TX Primary
Internal Medicine Physician 207R00000X U2037 TX

Addresses

Primary practice location

2840 Legacy Dr Ste 400
Frisco, TX 75034-6055

Mailing address

2840 Legacy Dr Ste 400
Frisco, TX 75034-6055
Phone (469) 200-6100

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
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

Enrollment IDStateProvider typePAC IDDetails
I20230908002537 TX Practitioner - Internal MedicinePractitioner - Sleep Medicine 4082941208 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Sleep Medicine
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Inspire Health PLLCGroup PAC ID 0042643751, 15 clinicians

Practice addresses (Care Compare)

2840 Legacy Dr
Suite 400
Frisco, TX 75034-6055
Phone (469) 200-6100

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
U2037TXMDSleep Medicine (Internal Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Inspire Health PLLC Multi-Specialty CurrentSince Sep 1, 2023 Accepting new patients

Locations

2840 Legacy Dr
Ste 400
Frisco, TX 75034
Phone (469) 200-6100

5575 Warren Pkwy
Ste 115
Frisco, TX 75034
Phone (469) 200-6100

5026 Tennyson Pkwy
Plano, TX 75024
Phone (469) 200-6100

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1552953600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772755200000",
    "number": "1669931440",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2840 LEGACY DR STE 400",
            "city": "FRISCO",
            "state": "TX",
            "postal_code": "750346055",
            "telephone_number": "469-200-6100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2840 LEGACY DR STE 400",
            "city": "FRISCO",
            "state": "TX",
            "postal_code": "750346055",
            "telephone_number": "469-200-6100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAM",
        "first_name": "MICHAEL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-03-19",
        "last_updated": "2026-03-06",
        "certification_date": "2026-03-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RS0012X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "TX",
            "license": "U2037",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "U2037",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Frisco, TX

Sources for this page

Verify at the official NPI Registry.