Kathleen Ellen O'brien, MD - Medicare Obstetrics & Gynecology in Madison, WI

Kathleen Ellen O'brien, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Madison, Wisconsin. Her current practice location is 20 S Park St, Madison, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (608) 287-2830.

Kathleen Ellen O'brien is licensed to practice in Wisconsin (license number 83783) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1245725829.

Contact Information

Kathleen Ellen O'brien, MD
20 S Park St,
Madison, WI 53715-1348
(608) 287-2830
Not Available

Map and Direction




Physician's Profile

Full NameKathleen Ellen O'brien
GenderFemale
SpecialityObstetrics & Gynecology
Location20 S Park St, Madison, Wisconsin
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1245725829
  • Provider Enumeration Date: 06/26/2018
  • Last Update Date: 08/28/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 2668728668
  • Enrollment ID: I20220927002397

Medical Identifiers

Medical identifiers for Kathleen Ellen O'brien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245725829NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 4301507116 (Michigan)Secondary
207V00000XObstetrics & Gynecology 83783 (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. Kathleen Ellen O'brien allows following entities to bill medicare on her behalf.
Entity NameRegents Of The University Of Michigan
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942235163
PECOS PAC ID: 3779496856
Enrollment ID: O20031117000778

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. Kathleen Ellen O'brien 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
Kathleen Ellen O'brien, MD
7974 Uw Health Ct,
Middleton, WI 53562-5531

Ph: () -
Kathleen Ellen O'brien, MD
20 S Park St,
Madison, WI 53715-1348

Ph: (608) 287-2830

Reviews and Comments


Obstetrics & Gynecology Doctors in Madison, WI

Eliza A. Bennett, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 20 S Park St, Ob/gyn Clinic, Madison, WI 53715
Phone: 608-287-2830    
Rebecca A Thousand, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1821 S Stoughton Rd, Madison, WI 53716
Phone: 608-260-6000    Fax: 608-260-6835
Katharina S Stewart, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 202 S Park St, Madison, WI 53715
Phone: 608-417-6667    Fax: 608-417-6364
Christopher Ann Federman, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 752 N High Point Rd, Dean Medical Center, Madison, WI 53717
Phone: 608-824-4800    Fax: 608-824-4910
John Bolinger Ester, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 700 S Park St, Madison, WI 53715
Phone: 608-251-6100    Fax: 608-258-5222
Kara Kjersten Hoppe, D.O.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 202 S Park St, Madison, WI 53715
Phone: 608-417-6667    Fax: 608-417-6364
Katherine S Sample, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 2402 Winnebago St, Madison, WI 53704
Phone: 608-242-6840    Fax: 608-245-6117

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.