Individual provider · Type 1 NPI

Mark L. Williams, MD

Anesthesiology Physician · Dallas, TX

NPI number 1679505440 Active

Practice location

12222 Merit Dr Ste 600
Dallas, TX 75251-3294

Call (972) 715-5000 Map

Fax (972) 715-9976

Mailing address

PO Box 13385
Scottsdale, AZ 85267-3385

Other practice locations

  • 250 E Dunlap Ave, Phoenix, AZ 85020 · (602) 273-9333

Specialties and licenses

TaxonomyCodeLicense
Anesthesiology Physician 207L00000X22063 (AZ)
Anesthesiology Physician Primary 207L00000XU4048 (TX)

Anesthesiology Physician: 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 provi…

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About NPI 1679505440

Mark L. Williams, MD's National Provider Identifier is 1679505440, issued on Jul 6, 2006. The primary taxonomy on file is Anesthesiology Physician (207L00000X), and the practice location is in Dallas, TX. The record was last updated on Apr 22, 2026.