DR. MARILYN J BORST (M.D.) – Surgery Physician, NPI 1134123003

DR. MARILYN J BORST (M.D.) is a healthcare provider. based in Madison, Wisconsin. specializing in Surgery Physician. They hold the professional credentials M.D.. They hold a License No. MD2020-0182 (NM). The NPI Number for DR. MARILYN J BORST (M.D.) is 1134123003

Main info

Female
36 Years Of Experience
Accepts Medicare Assignment
Name
DR. MARILYN J BORST (M.D.)
NPI
1134123003
Phone
(608) 251-6100
Address
700 S PARK ST
Enumeration Date
9 June 2005
Last Update Date
15 March 2023

Doctor Profile

Medical School Name
OTHER
Secondary Phone
6082516100
Graduation Year
1990 (36 years ago)
PAC ID
5890684161
Group Practice PAC ID
7012827983
Professional Enrollment ID
I20110916000160

Contacts

Secure Messaging
mborst305572@direct-ehr-ssmhc.com
FHIR Endpoint
https://fhir.ssmhc.com/fhir/api/FHIR/DSTU2/
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience100
Completeness85
Years active:20State licenses:5Other namesUpdated within 12 months

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Provider Addresses for DR. MARILYN J BORST (M.D.)

  • Saint Mary's Hospital, 700, South Park Street, Greenbush, Madison, Dane County, Wisconsin, 53715, United States

    MADISON, WI 537151830

    Phone: (608) 251-6100

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 2 Open Payments records for all available years, with a total value of $32.

Total Amount is formed as General ($32) + Research ($0) + Ownership ($0) = $32.

Last reported payment date: 2024-10-16 • Largest payer in this snapshot: Boston Scientific Corporation ($32).

Total Amount

$32

General + Research + Ownership

Payments

2

Total payment records

General Amount

$32

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-10-16

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2024-03-28

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20240328003720IGeneral SurgeryWVTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99231Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes3322$0
99291Critical care, first 30-74 minutes1611$0
View full utilization report →

Insurance plans in this area (ZIP 53715)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 7012827983View full group profile
NameSpecialtyState
U R O L O G YWA
-WI
N E U R O S U R G E R YNE
-WI
Physician AssistantWI
Family PracticeWI
Physician AssistantWI
Physician AssistantWI
Physician AssistantWI
Physician AssistantWI

Reviews

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Frequently asked questions

How do I look up DR. MARILYN J BORST (M.D.) by NPI?
Use NPI 1134123003 when you need to reference DR. MARILYN J BORST (M.D.) in forms, claims, or directories.
Is DR. MARILYN J BORST (M.D.)'s enrollment marked active?
An active flag here means the NPI record is not in a deactivated state.
Does DR. MARILYN J BORST (M.D.) list a primary specialty?
If you are matching referrals, note Surgery Physician for DR. MARILYN J BORST (M.D.). Clinical services aligned with this taxonomy classification.
Does DR. MARILYN J BORST (M.D.) practice in Wisconsin?
You will see Madison, Wisconsin on file for DR. MARILYN J BORST (M.D.) alongside any extra practice locations.
Is this NPI for an individual or an organization?
This listing corresponds to an Individual Provider.

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