Dr William Patrick Zeller, MD - Medicare Endocrinology in Wheaton, IL

Dr William Patrick Zeller, MD is a medicare enrolled "Pediatrics - Pediatric Endocrinology" physician in Wheaton, Illinois. He went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 1977 and has 47 years of diverse experience with area of expertise as Endocrinology. He is a member of the group practice Advocate Health And Hospitals Corporation and his current practice location is 2001 N Gary Ave, Suite 240, Wheaton, Illinois. You can reach out to his office (for appointments etc.) via phone at (630) 416-4501.

Dr William Patrick Zeller is licensed to practice in Illinois (license number 036-057718) 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 1699738922.

Contact Information

Dr William Patrick Zeller, MD
2001 N Gary Ave, Suite 240,
Wheaton, IL 60187-3055
(630) 416-4501
(630) 416-4504

Map and Direction




Physician's Profile

Full NameDr William Patrick Zeller
GenderMale
SpecialityEndocrinology
Experience47 Years
Location2001 N Gary Ave, Wheaton, Illinois
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 Patrick Zeller attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 1977
  NPI Data:
  • NPI Number: 1699738922
  • Provider Enumeration Date: 04/08/2006
  • Last Update Date: 06/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1850494873
  • Enrollment ID: I20110215001203

Medical Identifiers

Medical identifiers for Dr William Patrick Zeller such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1699738922NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 036-057718 (Illinois)Secondary
2080P0205XPediatrics - Pediatric Endocrinology 036-057718 (Illinois)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Advocate Health And Hospitals Corporation78108009352422

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 Patrick Zeller allows following entities to bill medicare on his behalf.
Entity NameAdvocate Health And Hospitals Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700824455
PECOS PAC ID: 7810800935
Enrollment ID: O20031106000064
Entity NameAccess Community Health Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982783692
PECOS PAC ID: 9537076112
Enrollment ID: O20031204000985
Entity NameW Patrick Zeller Md Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346301611
PECOS PAC ID: 5597868513
Enrollment ID: O20070313000223

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 Patrick Zeller 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 Patrick Zeller, MD
29373 Network Pl,
Chicago, IL 60673-1293

Ph: (847) 390-5900
Dr William Patrick Zeller, MD
2001 N Gary Ave, Suite 240,
Wheaton, IL 60187-3055

Ph: (630) 416-4501

Reviews and Comments


Pediatrics Doctors in Wheaton, IL

Jennifer Diane May, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 2001 N Gary Ave Ste 240, Wheaton, IL 60187
Phone: 630-416-4501    Fax: 630-416-4504
Joy Castrovillari, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 2001 N Gary Ave, Wheaton, IL 60187
Phone: 630-653-5115    Fax: 630-653-4493
Peter Ihor Liber, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 55 E Loop Rd, 301, Wheaton, IL 60187
Phone: 630-690-7300    Fax: 630-690-8019
Dr. Christopher G Santi, M.D.
Pediatrics
Medicare: Accepting Medicare Assignments
Practice Location: 2001 S Wiesbrook Rd, Wheaton, IL 60189
Phone: 630-614-4000    Fax: 630-614-4048
Ute Lohrmann Monson, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 2001 N Gary Ave Ste 100, Wheaton, IL 60187
Phone: 630-653-5115    
Sapan M Patel, MD
Pediatrics
Medicare: Accepting Medicare Assignments
Practice Location: 150 E Willow Ave Ste 110, Wheaton, IL 60187
Phone: 630-967-2000    
Ms. Lynn Mary Ables, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 55 E Loop Rd, Suite 301, Wheaton, IL 60187
Phone: 630-690-7300    Fax: 630-690-8019

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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