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TIMOTHY WILLIAMS MD
NPI 1275027419
Anesthesiology in Ann Arbor, MI

Active since June 20, 2018PECOS EnrolledAccepts Medicare Assignment
1500 E. MEDICAL CENTER DRIVE, ANN ARBOR, MI 48109(734) 936-4280 Get Directions Write a Review

NPPES record last updated: March 3, 2022. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Mar 3, 2022, Jun 20, 2018 (2 updates tracked since 2018).

About Timothy Williams Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

TIMOTHY WILLIAMS MD (NPI 1275027419) is an individual anesthesiology provider in Ann Arbor, Michigan, licensed in Texas (T5494) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, is affiliated with Baylor Scott & White Medical Center- Waxahachie, and is a graduate of University Of Texas Southwestern Medical School At Dallas (2018).

NPPES Registry Identity

NPI1275027419
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameTIMOTHY WILLIAMSCredential: MD
Location Address1500 E. MEDICAL CENTER DRIVEAnn Arbor, MI 48109-5048
Mailing Address1500 E. Medical Center DriveAnn Arbor, MI 48109-5048 · (734) 936-4280
Phone(734) 936-4280
Sole ProprietorNo
Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 2018
Enumeration DateJune 20, 2018
Last NPPES UpdateMarch 3, 20222 updates tracked since enumeration
NPPES CertifiedMarch 3, 2022
✔ NPI 1275027419 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in TX · T5494
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 4301115482 (MI)
1500 E. MEDICAL CENTER DRIVE, Ann Arbor, MI 48109
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Timothy Williams Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5395130124
PECOS Enrollment IDI20220315000360
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Baylor Scott & White Medical Center- Waxahachie

Acute Care Hospitals · Waxahachie, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450372
Location2400 N Interstate Highway 35EWaxahachie, TX 75165 · Ellis County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REBECCA ANNE OTTEN M.D.
Emergency Medicine
1500 E. MEDICAL CENTER DRIVE, B1-380 TC
ANN ARBOR, MI 48109
Washtenaw County (734) 763-7919
PATRICK FRANKLIN MURDAY MD
Pediatrics (Pediatric Critical Care Medicine)
1500 E. MEDICAL CENTER DRIVE, F6790 UH SOUTH, SPC 5243
ANN ARBOR, MI 48109
Washtenaw County (734) 936-9704
DR. ADAM ADAM MD MSC
Student in an Organized Health Care Education/Training Program
1500 E. MEDICAL CENTER DRIVE, CARDIOVASCULAR MEDICINE
ANN ARBOR, MI 48109
Washtenaw County (734) 936-8689
DR. JEREMY X FIGUEROA-ORTIZ MD, DMD
Dentist (Oral and Maxillofacial Surgery)
1500 E. MEDICAL CENTER DRIVE
ANN ARBOR, MI 48109
Washtenaw County (734) 232-6048
KATELYN MARTIN DO
Student in an Organized Health Care Education/Training Program
1500 E. MEDICAL CENTER DRIVE, 1H 247 UH
ANN ARBOR, MI 48109
Washtenaw County (714) 390-5607
SANA MUSTAFA ALSAMARAE DDS
Dentist (General Practice)
1500 E. MEDICAL CENTER DRIVE, MEDINN CLINIC C213,SPC 5831
ANN ARBOR, MI 48109
Washtenaw County (734) 936-5950
SCOTT LEVY
Surgery
1500 E. MEDICAL CENTER DRIVE, TAUBMAN CENTER, 2ND FLOOR, RECEPTION F
ANN ARBOR, MI 48109
Washtenaw County (734) 936-5738
DR. KEITH MARCUS MD
Student in an Organized Health Care Education/Training Program
1500 E. MEDICAL CENTER DRIVE
ANN ARBOR, MI 48109
Washtenaw County (734) 763-4210

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Timothy Williams's NPI number?

The NPI number for Timothy Williams is 1275027419. It was assigned to this individual provider in the NPPES registry on June 20, 2018.

Where is Timothy Williams located?

Timothy Williams practices at 1500 E. Medical Center Drive, Ann Arbor, MI 48109. The listed phone number is (734) 936-4280.

What is Timothy Williams's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Timothy Williams enrolled in Medicare?

Yes. Timothy Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Timothy Williams accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas and Molina Healthcare list Timothy Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Timothy Williams affiliated with any hospitals?

According to CMS data, Timothy Williams is affiliated with Baylor Scott & White Medical Center- Waxahachie.

When was this NPI record last updated?

The NPPES record for Timothy Williams was last updated on March 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.