William L Weiss, MD, PC - Medicare Nephrology in Phoenix, AZ

William L Weiss, MD, PC is a medicare enrolled "Internal Medicine - Nephrology" physician in Phoenix, Arizona. He went to R Franklin University Of Med & Sci/chicago Medical School and graduated in 1998 and has 26 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice William L Weiss Md Pc and his current practice location is 9321 W Thomas Rd, Ste 400, Phoenix, Arizona. You can reach out to his office (for appointments etc.) via phone at (623) 537-5100.

William L Weiss is licensed to practice in Arizona (license number 31284) 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 1881686368.

Contact Information

William L Weiss, MD, PC
9321 W Thomas Rd, Ste 400,
Phoenix, AZ 85037-3399
(623) 537-5100
(623) 537-5200

Map and Direction




Physician's Profile

Full NameWilliam L Weiss
GenderMale
SpecialityNephrology
Experience26 Years
Location9321 W Thomas Rd, Phoenix, Arizona
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:
  • William L Weiss attended and graduated from R Franklin University Of Med & Sci/chicago Medical School in 1998
  NPI Data:
  • NPI Number: 1881686368
  • Provider Enumeration Date: 08/19/2005
  • Last Update Date: 08/21/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 7214901594
  • Enrollment ID: I20040823000977

Medical Identifiers

Medical identifiers for William L Weiss such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1881686368NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology 31284 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Estrella Mountain Dialysis, Llc (ara)Phoenix, AZDialysis facility
Banner Estrella Medical CenterPhoenix, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
William L Weiss Md Pc59917792743

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. William L Weiss allows following entities to bill medicare on his behalf.
Entity NameWilliam L Weiss Md Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922138643
PECOS PAC ID: 5991779274
Enrollment ID: O20040823000918
Entity NameCtca Physicians Group Of Arizona Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609026806
PECOS PAC ID: 2264593474
Enrollment ID: O20081205000793

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. William L Weiss 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
William L Weiss, MD, PC
Po Box 6011,
Goodyear, AZ 85338-0617

Ph: (623) 537-5100
William L Weiss, MD, PC
9321 W Thomas Rd, Ste 400,
Phoenix, AZ 85037-3399

Ph: (623) 537-5100

Reviews and Comments


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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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.