What is Marilyn Borst's NPI number?

Marilyn Borst's National Provider Identifier (NPI) is 1134123003, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Marilyn Borst's specialty?

Marilyn Borst is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).

Where is Marilyn Borst located?

Marilyn Borst's practice location on file with NPPES is 700 S Park St, Madison, WI 53715-1830.

What is Marilyn Borst's phone number?

The practice phone number listed in the NPPES registry for Marilyn Borst is (608) 251-6100.

Does Marilyn Borst accept Medicare?

Marilyn Borst is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Marilyn Borst's NPI active?

Yes — Marilyn Borst's NPI (1134123003) is active in the NPPES registry as of the last update on 2023-03-15.

IndividualActiveAccepts Medicare

Marilyn Borst, M.D.

NPI 1134123003 · Surgery Physician · Madison, WI

Marilyn Borst, M.D. is a Surgery Physician provider in Madison, WI (NPI 1134123003).

Provider details

NPI number: 1134123003
Entity type: Individual
Primary specialty: Surgery PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: MD2020-0182 (NM)

Practice location

700 S Park St

Madison, WI 53715-1830

Phone: (608) 251-6100

Street-level locationGet directions

More WI providers

Mailing address

700 S Park St

Madison, WI 53715-1830

Specialties & taxonomies

Surgery PhysicianPrimary208600000XLicense 35085381 (OH)
Allopathic & Osteopathic Physicians
Surgery Physician208600000XLicense MD2020-0182 (NM)
Allopathic & Osteopathic Physicians
Surgery Physician208600000XLicense 56138 (WI)
Allopathic & Osteopathic Physicians
Surgery Physician208600000XLicense MD057727L (PA)
Allopathic & Osteopathic Physicians
Surgical Critical Care Physician2086S0102XLicense 35085381 (OH)
Allopathic & Osteopathic Physicians
Surgical Critical Care Physician2086S0102XLicense MD057727L (PA)
Allopathic & Osteopathic Physicians
Trauma Surgery Physician2086S0127XLicense 85381 (OH)
Allopathic & Osteopathic Physicians
Colon & Rectal Surgery Physician208C00000XLicense 85381 (OH)
Allopathic & Osteopathic Physicians
Colon & Rectal Surgery Physician208C00000XLicense MD057727L (PA)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(70/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
21 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
30 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	30	$75

Typical Medicare-allowed amounts for these services range $75–$75 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$32 across 2 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2005-06-09
Last updated: 2023-03-15
Certified: 2023-03-15

Frequently asked questions

What is Marilyn Borst's NPI number?: Marilyn Borst's National Provider Identifier (NPI) is 1134123003, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Marilyn Borst's specialty?: Marilyn Borst is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
Where is Marilyn Borst located?: Marilyn Borst's practice location on file with NPPES is 700 S Park St, Madison, WI 53715-1830.
What is Marilyn Borst's phone number?: The practice phone number listed in the NPPES registry for Marilyn Borst is (608) 251-6100.
Does Marilyn Borst accept Medicare?: Marilyn Borst is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Marilyn Borst's NPI active?: Yes — Marilyn Borst's NPI (1134123003) is active in the NPPES registry as of the last update on 2023-03-15.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	30	$75

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$32 across 2 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

Transparency — industry payments