Gregory P Witkowski, MD - Medicare Orthopedic Surgery in Warrenville, IL

Gregory P Witkowski, MD is a medicare enrolled "Orthopaedic Surgery" physician in Warrenville, Illinois. He went to Wayne State University School Of Medicine and graduated in 2003 and has 21 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice Legacy Healthcare Services Inc, Central Dupage Physician Group and his current practice location is 27650 Ferry Rd, Suite 100, Warrenville, Illinois. You can reach out to his office (for appointments etc.) via phone at (630) 225-2663.

Gregory P Witkowski is licensed to practice in Illinois (license number 036123834) 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 1750598850.

Contact Information

Gregory P Witkowski, MD
27650 Ferry Rd, Suite 100,
Warrenville, IL 60555-3845
(630) 225-2663
(630) 225-2399

Map and Direction




Physician's Profile

Full NameGregory P Witkowski
GenderMale
SpecialityOrthopedic Surgery
Experience21 Years
Location27650 Ferry Rd, Warrenville, 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:
  • Gregory P Witkowski attended and graduated from Wayne State University School Of Medicine in 2003
  NPI Data:
  • NPI Number: 1750598850
  • Provider Enumeration Date: 05/17/2007
  • Last Update Date: 02/19/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 1052485133
  • Enrollment ID: I20090819000237

Medical Identifiers

Medical identifiers for Gregory P Witkowski such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1750598850NPI-NPPES
206147133OtherILMEDICARE INDIVIDUAL
P01179010OtherILRR MEDICARE
036123834MedicaidIL
206147OtherILMEDICARE GROUP

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207XX0004XOrthopaedic Surgery - Foot And Ankle Surgery 036-123834 (Illinois)Secondary
207X00000XOrthopaedic Surgery 036123834 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Central Dupage HospitalWinfield, ILHospital
Delnor Community HospitalGeneva, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Legacy Healthcare Services Inc21633397223341
Central Dupage Physician Group5890696231977

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. Gregory P Witkowski allows following entities to bill medicare on his behalf.
Entity NameCentral Dupage Physician Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033149844
PECOS PAC ID: 5890696231
Enrollment ID: O20040303000601

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. Gregory P Witkowski 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
Gregory P Witkowski, MD
27650 Ferry Rd, Suite 100,
Warrenville, IL 60555-3845

Ph: (630) 225-2663
Gregory P Witkowski, MD
27650 Ferry Rd, Suite 100,
Warrenville, IL 60555-3845

Ph: (630) 225-2663

Reviews and Comments


Orthopaedic Surgery Doctors in Warrenville, IL

Jerome L Kolavo, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 27650 Ferry Rd, Suite 100, Warrenville, IL 60555
Phone: 630-225-2663    Fax: 630-225-2399
David K Chang, MD
Orthopedic Surgery
Medicare: Medicare Enrolled
Practice Location: 27650 Ferry Rd, Suite 100, Warrenville, IL 60555
Phone: 630-225-2663    Fax: 630-225-2399
Brian D Steinke, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 27650 Ferry Rd, Ste 100, Warrenville, IL 60555
Phone: 630-225-2663    Fax: 630-225-2399
Charles L Lupo, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 27650 Ferry Rd, Suite 100, Warrenville, IL 60555
Phone: 630-225-2663    
Dr. Tiffany R Kadow, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 27650 Ferry Rd, Warrenville, IL 60555
Phone: 630-225-2663    
William R Sterba Ii, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 27650 Ferry Rd, Suite 100, Warrenville, IL 60555
Phone: 630-225-2663    Fax: 630-225-2399
Sanjeev Bhatia, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 27650 Ferry Rd Ste 100, Warrenville, IL 60555
Phone: 630-225-2663    Fax: 630-225-2399

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.