CHARLES PATRICK SHAHAN MD
NPI 1033477070
Surgery - Trauma Surgery in Madison, WI

Active since April 27, 2012PECOS EnrolledAccepts Medicare Assignment
600 HIGHLAND AVE, MADISON, WI 53792(608) 263-7502 Get Directions Write a Review

NPPES record last updated: February 8, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 8, 2021, Oct 1, 2019, Jul 20, 2019 (3 updates tracked since 2019).

About Charles Patrick Shahan Md NPPES

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

CHARLES PATRICK SHAHAN MD (NPI 1033477070) is an individual trauma surgery provider in Madison, Wisconsin, licensed in Wisconsin (73380) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Meriter, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1033477070
Entity TypeIndividualMale
Primary Taxonomy2086S0127X
Provider Legal NameCHARLES PATRICK SHAHANCredential: MD
Location Address600 HIGHLAND AVEMadison, WI 53792-4402
Mailing Address7974 Uw Health CtMiddleton, WI 53562-5531
Sole ProprietorYes
Medical School CMSOtherGraduated 2012
Enumeration DateApril 27, 2012
Last NPPES UpdateFebruary 8, 20213 updates tracked since enumeration
NPPES CertifiedAugust 24, 2020
✔ NPI 1033477070 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Trauma SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0127X
License✔ Licensed in WI · 73380
Definition
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.
Also ListedSurgeryTaxonomy 208600000X · License S1265 (TX), 73380 (WI)
600 HIGHLAND AVE, Madison, WI 53792

Other Identifiers 2

Medicaid401321101TX
Other401321102TX · Cshcn

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Charles Patrick Shahan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8820234586
PECOS Enrollment IDI20200901001415
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 Reassignments

2

Medicare enrollment records show Charles Shahan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multi-Specialty
7974 UW HEALTH COURT
Middleton, WI 53562
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,832 clinicians in this Medicare group
Diagnostic Radiology
25753 OLD FREDERICKSBURG
Boerne, TX 78015
  • Reassigned Medicare billing, Texas enrollment
  • 2,397 clinicians in this Medicare group

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 3

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.
123 services58 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
35 services35 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
12 services12 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Unitypoint Health - Meriter

Acute Care Hospitals · Madison, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520089
Location202 S Park StMadison, WI 53715 · Dane County
Emergency services Birthing friendly

University Of Wi Hospitals & Clinics Authority

Acute Care Hospitals · Madison, WI
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number520098
Location600 Highland AvenueMadison, WI 53792 · Dane County
Emergency services

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.

Pharmacist
600 HIGHLAND AVE, COMPLIANCE MAIL CODE 2433
MADISON, WI 53792
Ophthalmology
600 HIGHLAND AVE
MADISON, WI 53792
Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Internal Medicine (Infectious Disease)
600 HIGHLAND AVE
MADISON, WI 53792
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Transplant Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Radiology (Radiation Oncology)
600 HIGHLAND AVE
MADISON, WI 53792

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 Charles Shahan's NPI number?

The NPI number for Charles Shahan is 1033477070. It was assigned to this individual provider in the NPPES registry on April 27, 2012.

Where is Charles Shahan located?

Charles Shahan practices at 600 Highland Ave, Madison, WI 53792. The listed phone number is (608) 263-7502.

What is Charles Shahan's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.

Is Charles Shahan enrolled in Medicare?

Yes. Charles Shahan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Charles Shahan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Shahan reassigns Medicare benefits to 2 organizations: University Of Wisconsin Medical Foundation, Inc (Middleton, WI) and University Of Texas Health Science Center At San Antonio (Boerne, TX). Each 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 Charles Shahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Charles Shahan accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Group Health Cooperative-SCW, HealthPartners and Quartz and 1 other insurer list Charles Shahan 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.

Is Charles Shahan affiliated with any hospitals?

According to CMS data, Charles Shahan is affiliated with Unitypoint Health - Meriter and University Of Wi Hospitals & Clinics Authority.

When was this NPI record last updated?

The NPPES record for Charles Shahan was last updated on February 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.