GI Associates
GI Associates is a physician-owned gastroenterology practice operating 25+ clinics across southeastern Wisconsin, serving adult and pediatric patients with 56 clinical providers and co-owned endoscopy centers.
- Company typePrivate
- Founded2000
- HeadquartersMilwaukee, United States
- Headcount101–250
- GTM typeB2C
- OfferingServices
What GI Associates does
GI Associates is a privately held, physician-owned gastroenterology medical practice headquartered in Milwaukee, Wisconsin, operating 25 or more clinic locations across southeastern Wisconsin. The practice employs between 101 and 250 staff and fields 56 clinical providers, comprising 32 physicians and 24 advanced practice providers, with subspecialty depth in pediatric gastroenterology, advanced endoscopy, hepatology, and inflammatory bowel disease. It co-owns multiple endoscopy centers in partnership with regional health systems including ProHealth Care, Columbia St. Mary's, Aurora, and Ascension, embedding the practice within hospital-based procedural infrastructure.
The practice runs the Wisconsin Clinical Advances in Research (WCAR) clinical research arm in partnership with Allegiance Research Specialists, giving patients access to gastroenterology clinical trials and giving the practice a non-fee-for-service revenue stream. Patient-facing technology is limited to a digital patient portal (wigia.mygportal.com) and online self-scheduling, both standard consumer healthcare IT rather than differentiated technology.
Revenue is generated through fee-for-service clinical encounters billed primarily to commercial and government payers, supplemented by endoscopy center ancillary revenue and clinical study grants. The practice's competitive position rests on regional physical density, subspecialty clinical talent, and embedded health-system relationships rather than on proprietary technology.
GI Associates firmographics
Firmographics- Name
- GI Associates
- Legal name
- GI Associates, LLC
- Website
- https://giassociates.com
- Company type
- Private
- Founded year
- 2000
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- GI Associates is a physician-owned gastroenterology practice operating 25+ clinics across southeastern Wisconsin, serving adult and pediatric patients with 56 clinical providers and co-owned endoscopy centers.
- Ownership category
- akta.pro rank
GI Associates industry classification
Industry- Product category
- Ambulatory Gastroenterology Services
- NAICS
- Ambulatory Health Care Services (621)
- SIC
- Services-Offices & Clinics Of Doctors Of Medicine (8011), Services-Specialty Outpatient Facilities, Nec (8093)
- akta.pro primary industry
- General Gastroenterology (HLAKAEAA)
- akta.pro secondary industries
- Endoscopy & GI Procedure Centers (HLAFAIAE), Liver & GI Clinical Research (Trials Centers) (HLAKAEAL)
Keywords
Where GI Associates is headquartered
LocationHeadquarters
- HQ city
- Milwaukee
- HQ country
- United States
- HQ region
- North America
Offices14 records
Markets served
GI Associates business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D
Revenue model
- Patient Care Services: GI Associates generates revenue through providing medical consultations, diagnostic procedures (colonoscopy, EGD, ERCP, capsule endoscopy, etc.), and treatment services. Services are billed to insurance or patients directly based on the procedures performed and office visits.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels7 records
GI Associates product offering
Product offeringCore offering
GI Associates is a private gastroenterology medical practice headquartered in Milwaukee, Wisconsin, that delivers outpatient digestive-health care to patients across southeastern Wisconsin through 25+ clinic locations staffed by 32 physicians and 24 advanced practice providers. The practice covers the full spectrum of gastroenterology and hepatology services and additionally runs clinical trials through its affiliated Wisconsin Center for Advanced Research (WCAR).
Product overview
GI Associates is a gastroenterology and digestive health care practice serving patients throughout Wisconsin. The company offers a comprehensive suite of digestive health services including diagnostic and therapeutic endoscopic procedures (colonoscopy, upper endoscopy/EGD, ERCP, capsule endoscopy, endoscopic ultrasound), treatment for over 50 gastrointestinal conditions, and a clinical trials program through the Wisconsin Center for Advanced Research (WCAR). Services are delivered through a network of 24+ locations across Wisconsin, supported by a patient portal for online access to results and bill pay. The practice includes both physician specialists and advanced practice providers treating conditions affecting the entire GI tract from mouth to rectum, including liver and pancreatic disorders.
Differentiator
Problem solved
Functional benefit
Products and services
- Outpatient gastroenterology consultations and procedures Diagnostic and therapeutic gastroenterology care delivered by 32 physicians and 24 advanced practice providers across 25+ outpatient clinic locations in southeastern Wisconsin, serving adult patients with digestive and liver conditions.
- Endoscopy and procedural services Endoscopy-based diagnostic and screening procedures (including screening colonoscopy) and related interventional GI procedures delivered across GI Associates' outpatient locations in southeastern Wisconsin.
- Hepatology care Subspecialty evaluation and management of liver and biliary conditions provided by the practice's gastroenterology clinical team.
- Clinical trials through Wisconsin Center for Advanced Research (WCAR) Gastroenterology-focused clinical research services run through WCAR that enable patients of GI Associates to participate in investigational studies and provide pharmaceutical/CRO sponsors with access to a regional multi-site network.
Companies that use GI Associates
Customer profileNamed customers1 record
Segments2 records
Ideal customer profiles2 records
GI Associates technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
GI Associates partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core.
- Wisconsin Center for Advanced Research (WCAR)coreWCAR is the clinical research division of GI Associates, conducting clinical trials in partnership with Allegiance Research Specialists. Active trials include Barrett's Esophagus surveillance, Crohn's disease treatment, diabetic gastroparesis medication, and ulcerative colitis studies.
- Allegiance Research SpecialistscorePartnered with WCAR for conducting clinical trials in gastroenterology including Crohn's disease, ulcerative colitis, and gastroparesis studies.
- Midwest GI Specialists, LLCcoreGI Associates physicians have financial interest or ownership in endoscopy centers. Midwest GI Specialists, LLC co-owns multiple endoscopy centers including Center for Digestive Health, Mayfair Digestive Health Center, Lake Country Endoscopy Center, Moreland Endoscopy Center, Southern Lakes Endoscopy Center, Racine Digestive Health Center, and Kenosha Digestive Health Center.
- ProHealth CarecoreProHealth Care co-owns Lake Country Endoscopy Center, GI Specialists LLC (DBA Moreland Endoscopy Center), and Southern Lakes Endoscopy Center with Midwest GI Specialists, LLC.
- Columbia St. Mary's, Inc.coreColumbia St. Mary's, Inc. co-owns Racine Digestive Health Center and Kenosha Digestive Health Center with Midwest GI Specialists, LLC.
Scale indicators3 records
Recent moves5 records
Expansion highlights5 records
GI Associates competitors and assessment
Company assessmentOthers
- ProHealth Care: Regional Wisconsin health system that co-owns multiple endoscopy centers with GI Associates. Partner and landlord/customer relationship rather than direct competitor, but a key counterparty in the practice's delivery model.
Direct peers
- Capital Digestive Care: Mid-Atlantic independent gastroenterology group with integrated endoscopy centers and clinical research. Comparable in combining specialty GI practice, ASC ownership, and active clinical trial enrollment.
- Connecticut GI: Independent multi-physician gastroenterology group with integrated endoscopy centers and clinical research program. Operates on the same community-private-practice model as GI Associates.
- Illinois Gastroenterology Group (IGG): Multi-site gastroenterology practice in the Chicago metro providing adult and pediatric GI services with associated endoscopy centers. Comparable in physician headcount, multi-location model, and hospital-affiliated delivery to GI Associates.
- MNGI Digestive Health: Large Upper-Midwest gastroenterology specialty practice with multiple endoscopy centers and an active clinical research program. Closest geographic and operational peer to GI Associates, serving Minneapolis/St. Paul with comparable scale (~30+ physicians, multiple ASCs, clinical trials).
- Peak Gastroenterology Associates: Multi-site Colorado GI practice with associated endoscopy centers. Comparable in combining adult/pediatric GI, ASC ownership, and regional private-practice structure.
- The Oregon Clinic: Large independent multi-specialty physician group with a substantial gastroenterology division including endoscopy centers. Comparable in scale and private-practice / physician-owned model.
Broad incumbents
- GI Alliance: Largest US gastroenterology practice platform (PE-backed by Waud Capital). Operates a national network of GI practices and ASCs — a scaled incumbent with the same core offering as GI Associates but at multi-state scale.
- United Digestive: PE-backed national GI platform (formed via Frazier Healthcare's roll-up). Directly comparable business model — physician practice + ASC ownership + clinical research — but at significantly larger scale across the Southeast.
Regional players
- Aurora Health Care (Advocate Aurora Health): Major Wisconsin-based health system where GI Associates operates offices within hospital buildings (e.g., Aurora West Allis). Functions as a regional referral source and facility partner, with overlapping GI service lines.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
GI Associates social profiles
Digital presenceGI Associates financial estimates
Financial estimateRevenue estimate
Valuation estimate
GI Associates leadership team
Management profileNumber of profiles
GI Associates funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
GI Associates M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about GI Associates
What does GI Associates do?
GI Associates is a private gastroenterology medical practice headquartered in Milwaukee, Wisconsin, that delivers outpatient digestive-health care to patients across southeastern Wisconsin through 25+ clinic locations staffed by 32 physicians and 24 advanced practice providers. The practice covers the full spectrum of gastroenterology and hepatology services and additionally runs clinical trials through its affiliated Wisconsin Center for Advanced Research (WCAR).
Is GI Associates a public or private company?
GI Associates is a private company. It is classified as unknown and is currently operating.
When was GI Associates founded?
GI Associates was founded in 2000. It employs 101 to 250 people.
Where is GI Associates based?
GI Associates is headquartered in Milwaukee, United States, in the North America region.
How does GI Associates make money?
One revenue line is on record: patient Care Services.
Who are GI Associates's main competitors?
ProHealth Care is listed as an others. Direct peers are Capital Digestive Care, Connecticut GI, Illinois Gastroenterology Group (IGG), MNGI Digestive Health, Peak Gastroenterology Associates and The Oregon Clinic. Broad incumbents are GI Alliance and United Digestive. Aurora Health Care (Advocate Aurora Health) is listed as a regional player.
Does GI Associates have an API?
No public API is recorded for GI Associates.
What industry is GI Associates in?
GI Associates's product category is Ambulatory Gastroenterology Services. Its primary akta.pro industry code is HLAKAEAA, General Gastroenterology, with a secondary code of HLAFAIAE, Endoscopy & GI Procedure Centers. Its NAICS code is 621 and its SIC code is 8011.