Shawn S Williamson, MD - Medicare Emergency Medicine in New London, WI

  1. Home
  2. Emergency Medicine
  3. WI
  4. New London
Shawn S Williamson, MD is a medicare enrolled "Emergency Medicine" physician in New London, Wisconsin. His current practice location is 1405 Mill St, New London, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (920) 531-2021.

Shawn S Williamson is licensed to practice in Wisconsin (license number 53739-20) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1386808319.

Contact Information

Shawn S Williamson, MD
1405 Mill St,
New London, WI 54961-2155
(920) 531-2021
Not Available

Map and Direction




Physician's Profile

Full NameShawn S Williamson
GenderMale
SpecialityEmergency Medicine
Location1405 Mill St, New London, Wisconsin
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1386808319
  • Provider Enumeration Date: 07/18/2008
  • Last Update Date: 06/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 7214115542
  • Enrollment ID: I20110708000541

Medical Identifiers

Medical identifiers for Shawn S Williamson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386808319NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 53739-20 (Wisconsin)Primary

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. Shawn S Williamson allows following entities to bill medicare on his behalf.
Entity NameThedacare Medical Center - Shawano, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548260839
PECOS PAC ID: 5890605836
Enrollment ID: O20031117000117
Entity NameThedacare Medical Center - Berlin Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760413777
PECOS PAC ID: 0446151666
Enrollment ID: O20040120000214
Entity NameThedacare Medical Center - New London, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538127220
PECOS PAC ID: 5698664480
Enrollment ID: O20040311000254
Entity NameThedacare Medical Center - Waupaca, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780782680
PECOS PAC ID: 3072504216
Enrollment ID: O20040524000645
Entity NameAscension Calumet Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376541748
PECOS PAC ID: 7416948427
Enrollment ID: O20040809000191
Entity NameIhc-wound Care Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942573019
PECOS PAC ID: 6305009101
Enrollment ID: O20120515000037

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. Shawn S Williamson 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
Shawn S Williamson, MD
3 Neenah Ctr,
Neenah, WI 54956-3070

Ph: (920) 531-2021		Shawn S Williamson, MD
1405 Mill St,
New London, WI 54961-2155

Ph: (920) 531-2021

Reviews and Comments


Emergency Medicine Doctors in New London, WI

Ronald J Krajnik, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1405 Mill St, New London, WI 54961
Phone: 920-531-2021    
James John Macneal, DO
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1405 Mill St, New London, WI 54961
Phone: 920-531-2030    Fax: 920-531-2016
Joseph R James, DO
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1405 Mill St, New London, WI 54961
Phone: 920-531-2000    
Amber Lievens Widenski, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1405 Mill St, New London, WI 54961
Phone: 920-531-2030    
Jocko R Zifferblatt, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1405 Mill St, New London, WI 54961
Phone: 920-531-2000    
Dr. John A Watring, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1405 Mill St, New London, WI 54961
Phone: 920-531-2000    

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.