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DR. WILLIAM BRENDAN HAYES MD
NPI 1760433098
Anesthesiology in Fort Worth, TX

Active since May 12, 2006PECOS EnrolledAccepts Medicare Assignment
4617 BRIARHAVEN RD, FORT WORTH, TX 76109(817) 776-3621 Get Directions Write a Review

NPPES record last updated: May 14, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 14, 2026, Dec 10, 2025, Feb 10, 2025 and 4 more (7 updates tracked since 2018).

About Dr. William Brendan Hayes Md NPPES

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

DR. WILLIAM BRENDAN HAYES MD (NPI 1760433098) is an individual anesthesiology provider in Fort Worth, Texas, licensed in Wisconsin (56749) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Medical Center - Cedar Rapids, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1760433098
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. WILLIAM BRENDAN HAYESCredential: MD
Location Address4617 BRIARHAVEN RDFort Worth, TX 76109-4609
Mailing Address4617 Briarhaven RdFort Worth, TX 76109-4609 · (817) 235-9237
Phone(817) 776-3621
Sole ProprietorNo
Medical School CMSOtherGraduated 1994
Enumeration DateMay 12, 2006
Last NPPES UpdateMay 14, 20267 updates tracked since enumeration
NPPES CertifiedMay 14, 2026
✔ NPI 1760433098 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in WI · 56749✔ Licensed in TX · J8572✔ Licensed in TN · 60074✔ Licensed in ME · MD22759
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.
4617 BRIARHAVEN RD, Fort Worth, TX 76109
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Other Identifiers 7

Medicaid103430804TX
Other82516AR · Medicare Pin
Medicaid806823200TX
Medicaid103430805TX
Other8X1982TX · Bcbs
OtherP00647473TX · Railroad
OtherX5423MT · Medicare Pin

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, CHRISTUS Health Plan and more.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

Dr. William Brendan Hayes 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 ID9638143373
PECOS Enrollment IDI20040819001336, I20200401002984, I20250303001592
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for procedure on eyelid 00103
Anesthesia for an eyelid procedure helps ensure comfort and painlessness during the operation. It's typically a local anesthetic, applied to numb your eyelid and surrounding area. You'll likely be awake but won't feel any discomfort. It's a safe, routine part of many eye procedures.
13 services13 patients
Anesthesia for retinal surgery 00145
Anesthesia for retinal surgery involves using medications to numb your eye and surrounding area. This prevents pain and discomfort during the procedure. You may also receive medication to help you relax. The anesthesia can be local (just your eye) or general (you're asleep).
13 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Mercy Medical Center - Cedar Rapids

Acute Care Hospitals · Cedar Rapids, IA
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number160079
Location701 10th Street SECedar Rapids, IA 52403 · Linn County
Emergency services Birthing friendly

Glen Rose Medical Center

Acute Care Hospitals · Glen Rose, TX
OwnershipGovernment - Hospital District or Authority
CMS Certification Number450451
Location1021 Holden StreetGlen Rose, TX 76043 · Somervell County
Emergency services

University Of Wi Hospitals & Clinics Authority

Acute Care Hospitals · Madison, WI
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number520098
Location600 Highland AvenueMadison, WI 53792 · Dane County
Emergency services

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 William Hayes's NPI number?

The NPI number for William Hayes is 1760433098. It was assigned to this individual provider in the NPPES registry on May 12, 2006.

Where is William Hayes located?

William Hayes practices at 4617 Briarhaven Rd, Fort Worth, TX 76109. The listed phone number is (817) 776-3621.

What is William Hayes's specialty?

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

Is William Hayes enrolled in Medicare?

Yes. William Hayes 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 William Hayes accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Medica and Molina Healthcare and 3 other insurers list William Hayes 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 William Hayes affiliated with any hospitals?

According to CMS data, William Hayes is affiliated with Mercy Medical Center - Cedar Rapids, Glen Rose Medical Center and University Of Wi Hospitals & Clinics Authority.

When was this NPI record last updated?

The NPPES record for William Hayes was last updated on May 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.