Marissa Decker, M.D.
Obstetrics & Gynecology Physician · Madison, WI
Marissa Decker, M.D. is an obstetrics & gynecology physician with a practice address in Madison, Wisconsin, and NPI 1912388638, issued on Jun 18, 2015. Check the license (Wisconsin 71587-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Marissa Decker
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 71587-20 WI
7434 NE
Self-reported in NPPES; status is on the state search - Practice location
- 752 N High Point RD, Madison, WI 53717
- Phone
- (608) 824-4000
- Enumerated
- Jun 18, 2015
- Record last updated
- Jun 9, 2023
- Fax
- (608) 824-4944
- Medicaid ID
- 1912388638 WI
- Medicare enrollment
- Enrolled (PECOS I20190826001803); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 796 in Wisconsin → Look up another NPI →
Also registered at 752 N High Point RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carleen Acker, PA-CPhysician Assistant1447514773
- Justin Amarnani, M.DFamily Medicine Physician1164866059
- Clifford Anderson, MDInternal Medicine Physician1487691788
- Sara Anderson-Kim, APNPNurse Practitioner1902057052
- Conrad Andringa, MDPediatrics Physician1528002581
- Timothy Baardseth, PH.D.Psychologist1104169218
Verify Marissa Decker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 71587-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
13 Medicare Part D claims for 11 beneficiaries, 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.
Bills Medicare through one group practice
- Dean Health Systems IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marissa Decker among 796 obstetrics & gynecology physician records in Wisconsin
Marissa Decker, M.D. 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 2015, is newer than 79% of them.
- NPI issued2015 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2015 · median 2007 among the 478 with a school on file
- Record last updated2023 · 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 Madison → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- India Anderson-CarterMadison, WI 537171750910667
- Abigail Cutler, MDMadison, WI 537171316385776
- Christopher Federman, MDMadison, WI 537171063469815
- Mary Haag, MDMadison, WI 537171477593671
- Dawn Kalin, D.O.Madison, WI 537171417290503
- Kimberly Miller, MDMadison, WI 537171477529493
- Meghan Ogden, MDMadison, WI 537171205805512
- Hector Porragas-Paseiro, MDMadison, WI 537171639751308
Common questions
What is Marissa Decker, M.D.'s NPI number?
Marissa Decker, M.D.'s National Provider Identifier (NPI) is 1912388638, issued on Jun 18, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Marissa Decker, M.D. located?
The NPPES record lists a practice address at 752 N High Point RD, Madison, WI, 53717. Phone: (608) 824-4000. Providers update this record themselves, so call before visiting.
How can I verify Marissa Decker, M.D.'s license?
NPPES lists Wisconsin license number 71587-20, 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 Marissa Decker, M.D. prescribe under Medicare Part D?
In 2024, Marissa Decker, M.D. had 13 Medicare Part D claims for 11 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.