Catherine R. Ryan, MD
Obstetrics & Gynecology Physician · La Crosse, WI
Catherine R. Ryan, MD is an obstetrics & gynecology physician with a practice address in La Crosse, Wisconsin, and NPI 1164424115, issued on Jun 2, 2005. Check the license (Wisconsin 34871, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Catherine R. Ryan
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 34871 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1836 South Ave, La Crosse, WI 54601
- Phone
- (608) 782-7300
- Enumerated
- Jun 2, 2005
- Record last updated
- Dec 30, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid ID
- 32025200 WI
- Medicare enrollment
- Enrolled (PECOS I20110105000590); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1990
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 796 in Wisconsin → Look up another NPI →
Also registered at 1836 South Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mateen Abidi, M.DCardiovascular Disease Physician1730333980
Verify Catherine R. Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 34871Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
20 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $62.00
1 payment: food and beverage; the largest payer was GE Healthcare. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Gundersen Lutheran Medical Center IncLa Crosse, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine R. Ryan among 796 obstetrics & gynecology physician records in Wisconsin
Catherine R. Ryan, MD is one of 796 obstetrics & gynecology physician records with a practice address in Wisconsin. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1990 · median 2007 among the 478 with a school on file
- Record last updated2013 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Wisconsin
There are 796 obstetrics & gynecology physician records in Wisconsin.
All 796 in Wisconsin → Every provider in La Crosse → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Renuka Ailiani, MDLa Crosse, WI 546011730182080
- Mary Alvarado, MDLa Crosse, WI 546011962404194
- Dana Benden, MDLa Crosse, WI 546011184628042
- Steven Bush, MDLa Crosse, WI 546011598879777
- Jill Davidson, MDLa Crosse, WI 546011427053651
- Mary Kuffel, MDLa Crosse, WI 546011215933478
- Michael Mader, MDLa Crosse, WI 546011992708762
- Jennifer McElroy, DOLa Crosse, WI 546011972540086
Common questions
What is Catherine R. Ryan, MD's NPI number?
Catherine R. Ryan, MD's National Provider Identifier (NPI) is 1164424115, issued on Jun 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Catherine R. Ryan, MD located?
The NPPES record lists a practice address at 1836 South Ave, La Crosse, WI, 54601. Phone: (608) 782-7300. Providers update this record themselves, so call before visiting.
How can I verify Catherine R. Ryan, MD's license?
NPPES lists Wisconsin license number 34871, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Catherine R. Ryan, MD prescribe under Medicare Part D?
In 2024, Catherine R. Ryan, MD had 20 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.