Dr William Lee Shaffer, MD - Medicare Nephrology in Corpus Christi, TX

Dr William Lee Shaffer, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Corpus Christi, Texas. He went to University Of Texas Medical Branch At Galveston and graduated in 1981 and has 43 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice Kidney Specialists Of South Texas, P.a. and his current practice location is 1521 S Staples St, Ste 601, Corpus Christi, Texas. You can reach out to his office (for appointments etc.) via phone at (361) 887-8451.

Dr William Lee Shaffer is licensed to practice in Texas (license number G0101) 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 1972506913.

Contact Information

Dr William Lee Shaffer, MD
1521 S Staples St, Ste 601,
Corpus Christi, TX 78404-3154
(361) 887-8451
(361) 887-6126

Map and Direction




Physician's Profile

Full NameDr William Lee Shaffer
GenderMale
SpecialityNephrology
Experience43 Years
Location1521 S Staples St, Corpus Christi, 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 Lee Shaffer attended and graduated from University Of Texas Medical Branch At Galveston in 1981
  NPI Data:
  • NPI Number: 1972506913
  • Provider Enumeration Date: 05/23/2005
  • Last Update Date: 04/22/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 5597867788
  • Enrollment ID: I20070413000501

Medical Identifiers

Medical identifiers for Dr William Lee Shaffer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972506913NPI-NPPES
118760101MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology G0101 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Corpus Christi DialysisCorpus christi, TXDialysis facility
Dsi Beeville Renal CenterBeeville, TXDialysis facility
Greenwood Holly Renal CenterCorpus christi, TXDialysis facility

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kidney Specialists Of South Texas, P.a.02442039587

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 Lee Shaffer allows following entities to bill medicare on his behalf.
Entity NameKidney Specialists Of South Texas, P.a.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699778068
PECOS PAC ID: 0244203958
Enrollment ID: O20040819000302

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 Lee Shaffer 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 Lee Shaffer, MD
1521 S Staples St, Ste 601,
Corpus Christi, TX 78404-3154

Ph: (361) 887-8451
Dr William Lee Shaffer, MD
1521 S Staples St, Ste 601,
Corpus Christi, TX 78404-3154

Ph: (361) 887-8451

Reviews and Comments


Internal Medicine Doctors in Corpus Christi, TX

Dr. Natalie W Philbrick, D.O.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 3301 S Alameda St Ste 201, Corpus Christi, TX 78411
Phone: 361-857-2900    
Dr. Gregg Lee Silverman, M.D.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 613 Elizabeth St, Suite 402, Corpus Christi, TX 78404
Phone: 361-887-2900    Fax: 361-887-0942
Dr. Stanley Cal, MD
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 4918 Ayers St Ste 130, Corpus Christi, TX 78415
Phone: 361-400-4355    Fax: 888-815-1095
James Michael Neff, M.D.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 7121 S Padre Island Dr, Corpus Christi, TX 78412
Phone: 361-696-6200    Fax: 361-696-6054
Dr. John Douglas Pappas, M.D.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 1521 S Staples St Ste 700, Corpus Christi, TX 78404
Phone: 361-888-8271    Fax: 361-885-3699
Thomas Alexander, MD
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 1202 3rd St, Corpus Christi, TX 78404
Phone: 361-883-3962    Fax: 361-883-5398
Marie Charisse Impe, NP
Nephrology
Medicare: Medicare Enrolled
Practice Location: 5802 Saratoga Blvd Ste 200, Corpus Christi, TX 78414
Phone: 361-696-6200    

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.