Katherine Mary O'Rourke, MD
Obstetrics & Gynecology Physician · Grand Rapids, MI
Katherine Mary O'Rourke, MD is an obstetrics & gynecology physician with a practice address in Grand Rapids, Michigan, and NPI 1366708869, issued on Apr 9, 2012. Check the license (Michigan 4301111430, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Katherine Mary O'Rourke
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 4301111430 MI
Self-reported in NPPES; status is on the state search - Practice location
- 221 Michigan St NE Ste 600, Grand Rapids, MI 49503
- Phone
- (616) 774-7035
- Enumerated
- Apr 9, 2012
- Record last updated
- Mar 14, 2025
- Medicare enrollment
- Enrolled (PECOS I20171010000552); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2012
- Entity
- Type 1 · individual
Also registered at 221 Michigan St NE Ste 600
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Bertus, PA-CPhysician Assistant1972174951
- Adrienne Brown, M.D.Obstetrics & Gynecology Physician1407084429
- Jennifer Cannon, D.O.Obstetrics & Gynecology Physician1487996930
- Madison Chapman, MDObstetrics & Gynecology Physician1578142907
- Kathleen Hascher, FNP-BCFamily Nurse Practitioner1417040296
- Katherine Johnson, D.O.Obstetrics & Gynecology Physician1619393899
Verify Katherine Mary O'Rourke in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301111430Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
47 Medicare Part D claims for 20 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
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.
Bills Medicare through one group practice
- Spectrum Health Primary Care PartnersGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
183 obstetrics & gynecology physician records list a practice address in Grand Rapids
They are 183 of the 18,005 NPPES records with a practice address in Grand Rapids, and 1,776 obstetrics & gynecology physician records in Michigan.
All 183 in Grand Rapids → All 1,776 in Michigan → Every provider in Grand Rapids →
Other obstetrics & gynecology physician records in Michigan
- Bryan Aaron, MDAnn Arbor, MI1578307724
- Mushtak Abbou, MDRoyal Oak, MI1093796922
- Youstina Abdallah, MDGrand Rapids, MI1679325062
- Adib Abdelrahman, D.O.Pontiac, MI1679889406
- Anan Abdelrahman, MDPontiac, MI1760472740
- Charlene Abernethy, DOWilliamsburg, MI1447305016
- Andrea Abessinio, D.O.Saint Clair Shores, MI1144237926
- Carmela Abessinio, D.O.Grosse Pointe, MI1174661763
- Joelle Abood, M.D.Troy, MI1063724813
- Margot Abundis, M.D.Roseville, MI1396746194
Common questions
What is Katherine Mary O'Rourke, MD's NPI number?
Katherine Mary O'Rourke, MD's National Provider Identifier (NPI) is 1366708869, issued on Apr 9, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Mary O'Rourke, MD located?
The NPPES record lists a practice address at 221 Michigan St NE Ste 600, Grand Rapids, MI, 49503. Phone: (616) 774-7035. Providers update this record themselves, so call before visiting.
How can I verify Katherine Mary O'Rourke, MD's license?
NPPES lists Michigan license number 4301111430, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Mary O'Rourke, MD prescribe under Medicare Part D?
In 2024, Katherine Mary O'Rourke, MD had 47 Medicare Part D claims for 20 beneficiaries; 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.