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DR. MARILYN J BORST M.D.
NPI 1134123003
Surgery in Madison, WI

Active since June 09, 2005PECOS Enrolled
700 S PARK ST, MADISON, WI 53715(608) 251-6100 Get Directions Write a Review

NPPES record last updated: March 15, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 15, 2023, Nov 3, 2020, Apr 23, 2020 (3 updates tracked since 2020).

About Dr. Marilyn J Borst M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARILYN J BORST M.D. (NPI 1134123003) is an individual surgery provider in Madison, Wisconsin, licensed in Ohio (35085381) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1134123003
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameDR. MARILYN J BORSTCredential: M.D.
Location Address700 S PARK STMadison, WI 53715-1830
Mailing Address700 S Park StMadison, WI 53715-1830 · (608) 251-6100
Phone(608) 251-6100
Sole ProprietorNo
Enumeration DateJune 9, 2005
Last NPPES UpdateMarch 15, 20233 updates tracked since enumeration
NPPES CertifiedMarch 15, 2023
✔ NPI 1134123003 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in OH · 35085381✔ Licensed in NM · MD2020-0182✔ Licensed in WI · 56138✔ Licensed in PA · MD057727L
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License 35085381 (OH), MD057727L (PA)
Also ListedSurgery · Trauma SurgeryTaxonomy 2086S0127X · License 85381 (OH)
Also ListedColon & Rectal SurgeryTaxonomy 208C00000X · License 85381 (OH), MD057727L (PA)
700 S PARK ST, Madison, WI 53715
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Other Identifiers 1

Medicaid1134123003WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Marilyn J Borst M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Marilyn Borst reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Charleston Area Medical Center Inc
484 mi
Multi-Specialty
407 MAIN ST STE 1
Belpre, OH 45714
  • Reassigned Medicare billing, West Virginia enrollment
  • 1,511 clinicians in this Medicare group
NPI 1588422547 (740) 315-5709

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
30 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53715 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHRISTOPHER DO
Physician Assistant
700 S PARK ST
MADISON, WI 53715
Dane County (608) 251-6100
JEREMI THOMAS OLSON PA-C
Physician Assistant (Surgical)
700 S PARK ST, DEAN ST. MARY'S OUTPATIENT CENTER
MADISON, WI 53715
Dane County (608) 260-2900
TIMOTHY J MORTON PA-C
Physician Assistant
700 S PARK ST, DEAN MEDICAL CENTER
MADISON, WI 53715
Dane County (608) 251-6100
STEPHEN H VANDER SLUIS
Anesthesiology
700 S PARK ST
MADISON, WI 53715
Dane County (608) 251-6100
BENJAMIN KLEIBER M.D.
Internal Medicine (Cardiovascular Disease)
700 S PARK ST, DEAN & ST. MARY'S OUTPATIENT CENTER
MADISON, WI 53715
Dane County (608) 260-2900
ERIN M MULLAN-TOWNS PA-C
Physician Assistant
700 S PARK ST
MADISON, WI 53715
Dane County (608) 260-2900
CONNIE SUE MCCULLICK APNP
Nurse Practitioner
700 S PARK ST
MADISON, WI 53715
Dane County (608) 251-6100
JUSTIN ALLEN LEHRKE CRNA
Nurse Anesthetist, Certified Registered
700 S PARK ST
MADISON, WI 53715
Dane County (608) 251-6100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marilyn Borst's NPI number?

The NPI number for Marilyn Borst is 1134123003. It was assigned to this individual provider in the NPPES registry on June 9, 2005.

Where is Marilyn Borst located?

Marilyn Borst practices at 700 S Park St, Madison, WI 53715. The listed phone number is (608) 251-6100.

What is Marilyn Borst's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Marilyn Borst enrolled in Medicare?

Yes. Marilyn Borst is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marilyn Borst's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marilyn Borst reassigns Medicare benefits to Charleston Area Medical Center Inc (Belpre, OH). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marilyn Borst's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marilyn Borst accept?

Health plans from CareSource list Marilyn Borst as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marilyn Borst was last updated on March 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.