Dr Mark Wayne Williams Sr, MD, PHD - Medicare General Surgery in Muscatine, IA

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Dr Mark Wayne Williams Sr, MD, PHD is a medicare enrolled "Surgery" physician in Muscatine, Iowa. He went to University Of North Carolina At Chapel Hill School Of Medicine and graduated in 2000 and has 26 years of diverse experience with area of expertise as General Surgery. He is a member of the group practice Unity Healthcare and his current practice location is 1518 Mulberry Ave Ste 102, Muscatine, Iowa. You can reach out to his office (for appointments etc.) via phone at (563) 264-4112.

Dr Mark Wayne Williams Sr is licensed to practice in Iowa (license number 49587) 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 1417986001.

Contact Information

Dr Mark Wayne Williams Sr, MD, PHD
1518 Mulberry Ave Ste 102,
Muscatine, IA 52761-3433
(563) 264-4112
Not Available

Map and Direction




Physician's Profile

Full NameDr Mark Wayne Williams Sr
GenderMale
SpecialityGeneral Surgery
Experience26 Years
Location1518 Mulberry Ave Ste 102, Muscatine, Iowa
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 Mark Wayne Williams Sr attended and graduated from University Of North Carolina At Chapel Hill School Of Medicine in 2000
  NPI Data:
  • NPI Number: 1417986001
  • Provider Enumeration Date: 07/03/2006
  • Last Update Date: 11/14/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 9638182314
  • Enrollment ID: I20220603000531

Medical Identifiers

Medical identifiers for Dr Mark Wayne Williams Sr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1417986001NPI-NPPES
036116745MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery 49587 (Iowa)Primary
208600000XSurgery TL25609 (South Carolina)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Unity Point At HomeMoline, ILHome health agency
Trinity MuscatineMuscatine, IAHospital
Trinity Rock IslandRock island, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Unity Healthcare822493154865

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 Mark Wayne Williams Sr allows following entities to bill medicare on his behalf.
Entity NameIowa Physicians Clinic Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366425274
PECOS PAC ID: 8729992318
Enrollment ID: O20031118000363
Entity NameUnity Healthcare
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629122742
PECOS PAC ID: 8224931548
Enrollment ID: O20040202000524

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 Mark Wayne Williams Sr 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 Mark Wayne Williams Sr, MD, PHD
1518 Mulberry Ave Ste 102,
Muscatine, IA 52761-3433

Ph: (563) 262-4112		Dr Mark Wayne Williams Sr, MD, PHD
1518 Mulberry Ave Ste 102,
Muscatine, IA 52761-3433

Ph: (563) 264-4112

Reviews and Comments


Surgery Doctors in Muscatine, IA

Dr. Prasad P Nadkarni, M.D.
Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 1518 Mulberry Ave, Muscatine, IA 52761
Phone: 563-262-4112    Fax: 563-264-8519

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.