Dr William Ellison, MD - Medicare Anesthesiology in Houston, TX

Dr William Ellison, MD is a medicare enrolled "Anesthesiology" physician in Houston, Texas. He went to University Of Texas Medical Branch At Galveston and graduated in 2001 and has 23 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice U S Anesthesia Partners Of Texas, Pa and his current practice location is 1500 Citywest Blvd, Ste. 300, Houston, Texas. You can reach out to his office (for appointments etc.) via phone at (713) 620-4000.

Dr William Ellison is licensed to practice in Texas (license number L9682) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1548273154.

Contact Information

Dr William Ellison, MD
1500 Citywest Blvd, Ste. 300,
Houston, TX 77042-2300
(713) 620-4000
(713) 458-4229

Map and Direction




Physician's Profile

Full NameDr William Ellison
GenderMale
SpecialityAnesthesiology
Experience23 Years
Location1500 Citywest Blvd, Houston, Texas
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr William Ellison attended and graduated from University Of Texas Medical Branch At Galveston in 2001
  NPI Data:
  • NPI Number: 1548273154
  • Provider Enumeration Date: 08/14/2006
  • Last Update Date: 08/27/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 1850335027
  • Enrollment ID: I20050617000733

Medical Identifiers

Medical identifiers for Dr William Ellison such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1548273154NPI-NPPES
173885802MedicaidTX
P01521520OtherTXRR MEDICARE
8EQ261OtherTXBLUE CROSS BLUE SHIELD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology L9682 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Houston Methodist The Woodlands HospitalThe woodlands, TXHospital
Kingwood Medical CenterKingwood, TXHospital
Houston Methodist HospitalHouston, TXHospital
Memorial Hermann Northeast HospitalHumble, TXHospital
Memorial Hermann Hospital SystemHouston, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
U S Anesthesia Partners Of Texas, Pa73158503512379

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr William Ellison allows following entities to bill medicare on his behalf.
Entity NameU S Anesthesia Partners Of Texas, Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548208564
PECOS PAC ID: 7315850351
Enrollment ID: O20031106000563
Entity NameNorth Medical Services Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659745693
PECOS PAC ID: 9739480310
Enrollment ID: O20160210001739

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr William Ellison is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr William Ellison, MD
Po Box 840853,
Dallas, TX 75284-0865

Ph: (972) 715-5000
Dr William Ellison, MD
1500 Citywest Blvd, Ste. 300,
Houston, TX 77042-2300

Ph: (713) 620-4000

Reviews and Comments


Anesthesiology Doctors in Houston, TX

Dr. Nicholas James Defilippis, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 2411 Fountain View Dr, Houston, TX 77057
Phone: 713-620-4000    
Dr. Archana Vargheese Raghavan, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 1500 Citywest Blvd, Ste. 300, Houston, TX 77042
Phone: 713-620-4000    Fax: 713-458-4229
Loc Tien Nguyen, MD
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 8614 Majesticbrook Dr, Houston, TX 77095
Phone: 832-746-6608    
Dr. Tanner B Baker, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 2537 S Gessner Rd, Suite 200, Houston, TX 77063
Phone: 713-559-6929    
Hyung J Kim, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 1635 North Loop W, Houston, TX 77008
Phone: 713-540-6980    
Dr. Salim Khan Durrani, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 11777 Katy Fwy Ste 260, Houston, TX 77079
Phone: 713-973-7246    Fax: 832-553-1337
January Y Tsai, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 1515 Holcombe Blvd, Houston, TX 77030
Phone: 713-792-6161    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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