Individual provider Active NPI

Timothy Williams, MD

  • Anesthesiology Physician
  • Ann Arbor, MI
National Provider Identifier
1275027419
Registry record updated Mar 3, 2022
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
T5494 Issued in TX
Practice address
1500 E. Medical Center Drive
Ann Arbor, MI 48109-5048
Phone
(734) 936-4280
NPI assigned
Jun 20, 2018
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 3, 2022

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X 4301115482 MI
Anesthesiology Physician 207L00000X T5494 TX Primary

Addresses

Primary practice location

1500 E. Medical Center Drive
Ann Arbor, MI 48109-5048

Mailing address

1500 E. Medical Center Drive
Ann Arbor, MI 48109-5048
Phone (734) 936-4280

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
I20220315000360 TX Practitioner - Anesthesiology 5395130124 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
University of Texas Southwestern Medical School at Dallas, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Healthtexas Provider NetworkGroup PAC ID 1355254210, 2,535 clinicians
NTX Anesthesiology Consultants PLLCGroup PAC ID 7416203773, 115 clinicians

Practice addresses (Care Compare)

2400 N I
Suite 35
Waxahachie, TX 75165-5240
Phone (817) 922-1770

821 N Coleman St
Suite 100
Prosper, TX 75078-2339
Phone (469) 800-5200

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
4301115482MIMDStudent in an Organized Health Care Education/Training Program

Practice roles

OrganizationSpecialtyStatusNew patients
U S Anesthesia Partners of Texas, PA Anesthesiology CurrentSince Nov 15, 2023 Accepting new patients
Healthtexas Provider Network Anesthesiology CurrentSince Oct 27, 2025 Accepting new patients
Healthtexas Provider Network Current Accepting new patients
Healthtexas Provider Network Anesthesiology CurrentSince Oct 27, 2025 Accepting new patients
U. S. Anesthesia Partners of Texas, P.a., Anesthesiology CurrentSince Nov 15, 2023 Accepting new patients
NTX Anesthesiology Consultants PLLC Anesthesiology CurrentSince May 1, 2022 Accepting new patients
Healthtexas Provider Network Past Accepting new patients

Locations

3301 Matlock Rd
Arlington, TX 76015
Phone (682) 509-6200

5408 Colleyville Blvd
Colleyville, TX 76034
Phone (817) 498-9920

3500 W Wheatland Rd
Dallas, TX 75237
Phone (214) 947-5950

4001 Worth St
Dallas, TX 75246
Phone (214) 828-1745

3600 Gaston Ave
Ste 550
Dallas, TX 75246
Phone (214) 821-1177

3500 Gaston Ave
Dallas, TX 75246

1400 8th Ave
#C770
Fort Worth, TX 76104
Phone (817) 922-1770

1800 Park Place Ave
Ft Worth, TX 76110
Phone (682) 703-5600

100 Medical Dr
Lake Jackson, TX 77566
Phone (713) 496-7555

100 Medical Pkwy
Lakeway, TX 78738
Phone (512) 206-8100

821 N Coleman St
Ste 100
Prosper, TX 75078
Phone (469) 800-5200

2221 Lakeside Blvd
Ste 600
Richardson, TX 75082
Phone (469) 998-7450

2400 N Interstate Highway 35 E
Waxahachie, TX 75165
Phone (469) 843-4000

Organizations & group practices 7

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 1

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": "1529452800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1646265600000",
    "number": "1275027419",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1500 E. MEDICAL CENTER DRIVE",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481095048",
            "telephone_number": "734-936-4280"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 E. MEDICAL CENTER DRIVE",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481095048",
            "telephone_number": "734-936-4280"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "TIMOTHY",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-06-20",
        "last_updated": "2022-03-03",
        "certification_date": "2022-03-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "MI",
            "license": "4301115482",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "TX",
            "license": "T5494",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ann Arbor, MI

Sources for this page

Verify at the official NPI Registry.