Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Marilyn J Borst, M.D.
Surgery Physician in Madison, WI · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1134123003
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Registry record
Entity type Individual (Type 1)
Name Dr. Marilyn J Borst
Credential M.D.
Sex Female
Practice address 700 S Park St, Madison, WI, 53715
Phone (608) 251-6100
Enumeration date Jun 9, 2005
Last updated in NPPES Mar 15, 2023
Taxonomy & licenses
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD2020-0182 (NM) Secondary
2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License 35085381 (OH) Secondary
2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License MD057727L (PA) Secondary
2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License 85381 (OH) Secondary
208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 85381 (OH) Secondary
208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License MD057727L (PA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1134123003 | Medicaid | WI | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Marilyn Borst practice?
The practice location on file with NPPES is in Madison, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marilyn Borst?
The National Provider Identifier (NPI) for Marilyn Borst is 1134123003, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Paul Gavins Physician Assistant · Madison, WI NPI 1952308272 Ssm Health Care of Wisconsin, Inc. General Acute Care Hospital · Madison, WI NPI 1184621211 Michael Zolinski Anesthesiology Physician · Madison, WI NPI 1821097593 Frederick Freitag Pain Medicine Physician · Madison, WI NPI 1386636272 Anand Mohan Critical Care Medicine (Internal Medicine) Physician · Madison, WI NPI 1427043058 Jeremi Olson Surgical Physician Assistant · Madison, WI NPI 1003803339 Steven Indra Emergency Medicine Physician · Madison, WI NPI 1922096692 Melissa Baraboo Genetic Counselor (M.S.) · Madison, WI NPI 1982693552
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-15.