Marissa DeckerM.D.
Obstetrics & Gynecology·Madison, WI
Marissa Decker, M.D. is an Obstetrics & Gynecology provider in Madison, WI, as of July 2026.
- NPI1912388638
- Registered2015
- Class of2015
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Marissa Decker at a glance
- Provider
- Marissa Decker
- Credential
- M.D.
- Specialty
- Obstetrics/Gynecology
- Procedures
- Obstetrics & Gynecology CPT codes
- Location
- Madison, WI
- Medical school
- University of Iowa, Rj & L Carver College of Medicine
- Graduated
- 2015
- NPI registered
- 2015
- NPI
- 1912388638
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Marissa Decker practice?
Marissa Decker, M.D. is based in Madison, WI. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Marissa Decker's NPI number?
Marissa Decker's National Provider Identifier (NPI) is 1912388638, registered in 2015. Specialty on record: Obstetrics/Gynecology; credential M.D.
Where did Marissa Decker go to medical school?
Marissa Decker, M.D. attended University of Iowa, Rj & L Carver College of Medicine, graduating in 2015.
How many Obstetrics & Gynecology providers in Wisconsin work at ambulatory surgery centers?
94 Obstetrics & Gynecology surgeons and proceduralists in Wisconsin are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Marissa Decker among them. The Wisconsin Obstetrics & Gynecology directory lists each one by city with credential, NPI, and center affiliations.
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