1. Home
  2. Directory
  3. Texas
  4. Houston
  5. Anesthesiology
  6. NPI Profile

DR. WILLIAM ELLISON MD
NPI 1548273154
Anesthesiology in Houston, TX

Active since August 14, 2006PECOS EnrolledAccepts Medicare Assignment
93.5/100
CMS Quality Rating
1500 CITYWEST BLVD, STE. 300, HOUSTON, TX 77042(713) 620-4000(713) 458-4229 Get Directions Write a Review

NPPES record last updated: August 27, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Aug 27, 2020, Feb 23, 2017 (2 updates tracked since 2017).

About Dr. William Ellison Md NPPES

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

DR. WILLIAM ELLISON MD (NPI 1548273154) is an individual anesthesiology provider in Houston, Texas, licensed in Texas (L9682) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Hospital System, and is a graduate of University Of Texas Medical Branch At Galveston (2001).

NPPES Registry Identity

NPI1548273154
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. WILLIAM ELLISONCredential: MD
Location Address1500 CITYWEST BLVD, STE. 300Houston, TX 77042-2300
Mailing AddressPo Box 840853Dallas, TX 75284-0865 · (972) 715-5000 · Fax (972) 233-3666
Phone(713) 620-4000
Fax(713) 458-4229
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical Branch At GalvestonGraduated 2001
Enumeration DateAugust 14, 2006
Last NPPES UpdateAugust 27, 20202 updates tracked since enumeration
NPPES CertifiedAugust 27, 2020
✔ NPI 1548273154 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in TX · L9682
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.
1500 CITYWEST BLVD, Houston, TX 77042
Open in Google Maps ↗

Other Identifiers 3

OtherP01521520TX · Rr Medicare
Medicaid173885802TX
Other8EQ261TX · Blue Cross Blue Shield

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Community Health Choice, 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

Dr. William Ellison 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 ID1850335027
PECOS Enrollment IDI20050617000733
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 5

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 other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
29 services29 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
27 services27 patients
Anesthesia for procedure on small and large bowel using an endoscope 00813
Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.
22 services22 patients
Anesthesia for x-ray or radiation therapy 01922
Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.
15 services15 patients
Anesthesia for other procedure on upper abdomen 00790
Anesthesia for an upper abdomen procedure involves using medications to help you feel no pain during the operation. It can be general, where you're unconscious, or regional, where just the abdomen area is numbed. It ensures comfort and stillness, aiding a successful procedure.
12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Memorial Hermann Hospital System

Acute Care Hospitals · Houston, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450184
Location1635 North Loop WestHouston, TX 77008 · Harris County
Emergency services Birthing friendly

Houston Methodist Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450358
Location6565 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Memorial Hermann Northeast Hospital

Acute Care Hospitals · Humble, TX
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450684
Location18951 Memorial NorthHumble, TX 77338 · Harris County
Emergency services Birthing friendly

Hca Houston Healthcare Kingwood

Acute Care Hospitals · Kingwood, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number450775
Location22999 Us Hwy 59Kingwood, TX 77325 · Harris County
Emergency services Birthing friendly

Houston Methodist The Woodlands Hospital

Acute Care Hospitals · The Woodlands, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670122
Location17201 Interstate 45 SouthThe Woodlands, TX 77385 · Montgomery County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality97.15
Improvement Activities40
Cost83.57

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.

DANIELLE THERESE GEORGE CRNA
Nurse Anesthetist, Certified Registered
1500 CITYWEST BLVD, STE. 300
HOUSTON, TX 77042
Harris County (713) 620-4000
RODRIQUE DEWYANE NELSON CRNA
Nurse Anesthetist, Certified Registered
1500 CITYWEST BLVD, STE. 300
HOUSTON, TX 77042
Harris County (713) 620-4000
PEDRO NAPOLES CRNA
Nurse Anesthetist, Certified Registered
1500 CITYWEST BLVD, SUITE 300
HOUSTON, TX 77042
Harris County (972) 715-5000
GEORGE LOUIS HERLIN MD
Anesthesiology
1500 CITYWEST BLVD, STE. 300
HOUSTON, TX 77042
Harris County (713) 620-4000
GREGORY RONALD CURFMAN
Nurse Anesthetist, Certified Registered
1500 CITYWEST BLVD, STE. 300
HOUSTON, TX 77042
Harris County (713) 620-4000
JENNIFER TERRASAS CRNA
Nurse Anesthetist, Certified Registered
1500 CITYWEST BLVD, STE. 300
HOUSTON, TX 77042
Harris County (713) 620-4000
DR. DON ELDON CHERRY M.D.
Anesthesiology
1500 CITYWEST BLVD, STE. 300
HOUSTON, TX 77042
Harris County (713) 620-4000
IGNATIUS PAUL DISTEFANO
Anesthesiology
1500 CITYWEST BLVD, STE. 300
HOUSTON, TX 77042
Harris County (713) 620-4000

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 Ellison's NPI number?

The NPI number for William Ellison is 1548273154. It was assigned to this individual provider in the NPPES registry on August 14, 2006.

Where is William Ellison located?

William Ellison practices at 1500 Citywest Blvd Ste. 300, Houston, TX 77042. The listed phone number is (713) 620-4000.

What is William Ellison's specialty?

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

Is William Ellison enrolled in Medicare?

Yes. William Ellison 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 Ellison accept?

Health plans from Blue Cross and Blue Shield of Texas, Community Health Choice and Molina Healthcare list William Ellison 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 Ellison affiliated with any hospitals?

According to CMS data, William Ellison is affiliated with Memorial Hermann Hospital System, Houston Methodist Hospital, Memorial Hermann Northeast Hospital, Hca Houston Healthcare Kingwood and Houston Methodist The Woodlands Hospital.

When was this NPI record last updated?

The NPPES record for William Ellison was last updated on August 27, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.