Mary Katherine Williams, CNM - Medicare Certified Nurse Midwife (cnm) in Green Bay, WI

Mary Katherine Williams, CNM is a medicare enrolled "Advanced Practice Midwife" in Green Bay, Wisconsin. She graduated from nursing school in 2012 and has 12 years of diverse experience with area of expertise as Certified Nurse Midwife (cnm). She is a member of the group practice St Vincent Hospital-hospital Sisters-third Order Of St Francis and her current practice location is 1715 Dousman St, Green Bay, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (920) 496-4700.

Mary Katherine Williams is licensed to practice in Wisconsin (license number 148871-32) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1578807673.

Contact Information

Mary Katherine Williams, CNM
1715 Dousman St,
Green Bay, WI 54303-3211
(920) 496-4700
Not Available

Map and Direction




Provider's Profile

Full NameMary Katherine Williams
GenderFemale
SpecialityCertified Nurse Midwife (cnm)
Experience12 Years
Location1715 Dousman St, Green Bay, Wisconsin
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mary Katherine Williams graduated from nursing school in 2012
  NPI Data:
  • NPI Number: 1578807673
  • Provider Enumeration Date: 11/15/2012
  • Last Update Date: 09/21/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 5294989422
  • Enrollment ID: I20130215000382

Medical Identifiers

Medical identifiers for Mary Katherine Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1578807673NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
367A00000XAdvanced Practice Midwife 148871-32 (Wisconsin)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
St Vincent Hospital-hospital Sisters-third Order Of St Francis5799694675546

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. Mary Katherine Williams allows following entities to bill medicare on her behalf.
Entity NamePrevea Clinic Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1306869276
PECOS PAC ID: 0042123150
Enrollment ID: O20031106000034
Entity NameOneida Nation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740278308
PECOS PAC ID: 6800794074
Enrollment ID: O20031224000077
Entity NameSt Vincent Hospital-hospital Sisters-third Order Of St Francis
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285613638
PECOS PAC ID: 5799694675
Enrollment ID: O20080620000423

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. Mary Katherine Williams 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
Mary Katherine Williams, CNM
Po Box 19070, Suite 133,
Green Bay, WI 54307-9070

Ph: (920) 496-4700
Mary Katherine Williams, CNM
1715 Dousman St,
Green Bay, WI 54303-3211

Ph: (920) 496-4700

Reviews and Comments


Advanced Practice Midwife Nurses in Green Bay, WI

Renee R Smith, CNM,APNP
Advanced Practice Midwife
Medicare: Accepting Medicare Assignments
Practice Location: 720 S Vanburen St, Suite 101, Green Bay, WI 54301
Phone: 920-433-3420    Fax: 920-338-6859
Kelly E O'connor, CNM
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Practice Location: 1860 Shawano Ave, Green Bay, WI 54303
Phone: 920-496-4700    
Nylene Brittain, CNM
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Medicare: Medicare Enrolled
Practice Location: 2641 Development Dr, Green Bay, WI 54311
Phone: 920-338-6868    Fax: 920-338-6969
Angela M Walker, CNM, APNP
Advanced Practice Midwife
Medicare: Accepting Medicare Assignments
Practice Location: 720 S Vanburen St, Green Bay, WI 54301
Phone: 920-468-3444    Fax: 920-432-6313
Natalie Larson,
Advanced Practice Midwife
Medicare: Accepting Medicare Assignments
Practice Location: 1715 Dousman St, Green Bay, WI 54303
Phone: 920-496-4700    
Erin Joanne Broda, CNM
Advanced Practice Midwife
Medicare: Accepting Medicare Assignments
Practice Location: 1821 S Webster Ave, Green Bay, WI 54301
Phone: 920-496-4700    

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.