Catherine R Ryan, MD - Medicare Obstetrics/gynecology in La Crosse, WI

Catherine R Ryan, MD is a medicare enrolled "Obstetrics & Gynecology" physician in La Crosse, Wisconsin. She went to University Of Minnesota Medical School and graduated in 1990 and has 34 years of diverse experience with area of expertise as Obstetrics/gynecology. She is a member of the group practice Gundersen Lutheran Medical Center Inc and her current practice location is 1836 South Ave, La Crosse, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (608) 782-7300.

Catherine R Ryan is licensed to practice in Wisconsin (license number 34871) 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 1164424115.

Contact Information

Catherine R Ryan, MD
1836 South Ave,
La Crosse, WI 54601-5429
(608) 782-7300
Not Available

Map and Direction




Physician's Profile

Full NameCatherine R Ryan
GenderFemale
SpecialityObstetrics/gynecology
Experience34 Years
Location1836 South Ave, La Crosse, 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:
  • Catherine R Ryan attended and graduated from University Of Minnesota Medical School in 1990
  NPI Data:
  • NPI Number: 1164424115
  • Provider Enumeration Date: 06/02/2005
  • Last Update Date: 12/30/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 8729277843
  • Enrollment ID: I20110105000590

Medical Identifiers

Medical identifiers for Catherine R Ryan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1164424115NPI-NPPES
32025200MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 34871 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Gundersen Lutheran Medical CenterLa crosse, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gundersen Lutheran Medical Center Inc2163331414800

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. Catherine R Ryan allows following entities to bill medicare on her behalf.
Entity NameGundersen Clinic Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851343115
PECOS PAC ID: 9638082779
Enrollment ID: O20031106000139
Entity NameGundersen Lutheran Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376593442
PECOS PAC ID: 2163331414
Enrollment ID: O20130619000254

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. Catherine R Ryan 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
Catherine R Ryan, MD
1836 South Ave,
La Crosse, WI 54601-5429

Ph: (608) 782-7300
Catherine R Ryan, MD
1836 South Ave,
La Crosse, WI 54601-5429

Ph: (608) 782-7300

Reviews and Comments


Obstetrics & Gynecology Doctors in La Crosse, WI

Theodore M Peck, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    
Dayna Patricia Schwarz, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 800 West Ave S, La Crosse, WI 54601
Phone: 608-392-9866    Fax: 608-392-3888
Dr. Lauren Allen Scott, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    
Dana M Benden, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    
Harry Franklin Farb, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    
Kenneth W Merkitch, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1836 South Ave, La Crosse, WI 54601
Phone: 608-782-7300    

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.