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State of Mississippi - University of Mississippi Medical Center

Organization Active NPI General Acute Care Hospital · Canton, MS

NPI 1194770404 · NPPES record last updated Feb 20, 2026

Key facts

NPI
1194770404
Entity type
Organization (NPI type 2)
Primary specialty
General Acute Care Hospital 282N00000X
License
16243 (MS)
Legal business name
STATE OF MISSISSIPPI - UNIVERSITY OF MISSISSIPPI MEDICAL CENTER
Practice address
161 River Oaks Drive
Canton, MS 39046-5375
Phone
(601) 496-5500
Fax
(601) 855-5100
NPI assigned
May 24, 2006
Organization subpart
Yes
Parent organization (as reported)
STATE OF MISSISSIPPI - UNIVERSITY OF MISSISSIPPI MEDICAL CENTER

Authorized official

Name
Jeffrey Grimsley
Title
Associate Cfo
Phone
(601) 815-6270

Owners & managing parties with NPI records 22

Owners and managing parties disclosed on this facility’s Medicare enrollment that are themselves Medicare-enrolled.

Owned or controlled facilities with NPI records 15

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Other NPIs with the same Medicare PAC ID 22

NPIs whose Medicare enrollments share a PECOS associate control ID (the same enrolled entity).

Corporate family (same tax ID) 16

Organizations that report the same tax identification number in the National Provider Directory.

Member of 1

Organizations this organization is a member of, according to the National Provider Directory.

Facilities connected through Provider of Services related, parent or unit certification numbers.

Facilities with the same owner 14

Facilities that share an organizational owner with 5% or greater ownership or operational control.

Practitioners 957

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

View all 957

Affiliated clinicians 186

Clinicians who list this facility as an affiliation in Medicare Care Compare.

View all 186

Medicare Care Compare: Hospital

Listed as
Merit Health Madison CCN 250038
Overall star rating
★★★☆☆ 3 of 5
Type
Acute Care Hospitals
Ownership
Proprietary
Medicare certification status
Active (Provider of Services file)
Emergency services
Yes

Source: Medicare Care Compare.

Medicare participation

Medicare fee-for-service enrollment
Enrolled in MS

Hospital certification: CCN 250038

Legal name
STATE OF MISSISSIPPI-UNIVERSITY OF MISSISSIPPI MEDICAL CENTER
Doing business as
UMMC MADISON
Certification status
Active
Provider type (POS)
Hospital – Short-term
Participating since
Jul 1, 1966
Last certification
Feb 11, 2017
Beds
67
Ownership / control type
Private (for profit)
Most recent change of ownership
May 1, 2025 (2 total)
Organization structure
Government · Non-profit
Enrollment address
161 River Oaks Dr
Canton, MS 39046-5375
Main/Primary Hospital Location
Hospital subgroups
Acute care

All disclosed owners & managing parties 4

As disclosed on the Medicare enrollment (CMS All Owners files). Individuals include officers, directors and managing employees, who may not hold ownership.

NameRoleSinceShare
Jeffrey G Grimsley
Individual 		W-2 Managing Employee
Associate Cfo		 May 1, 2025
State of Mississippi-University of Mississippi Medical Center
Organization · Jackson, MS
Chain home office 		5% Or Greater Direct Ownership Interest May 1, 2025 100%
Britton Phelps
Individual 		W-2 Managing Employee
Executive Administrator - Madison		 May 1, 2025
Dodie McElmurray
Individual 		W-2 Managing Employee
Ceo		 May 1, 2025

All facility ownership & control disclosures 14

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
State of Mississippi-University of Mississippi Medical Center
Jackson, MS · CCN 250001		 Hospital 5% Or Greater Direct Ownership Interest
Operational/Managerial Control		 Jul 1, 2007
Jul 1, 2007
University of Mississi Medical Center- Holmes County
Lexington, MS · CCN 25Z319		 Hospital 5% Or Greater Direct Ownership Interest Jan 1, 2004
Holmes County Hospital & Clinics
Lexington, MS · CCN 251319		 Hospital 5% Or Greater Direct Ownership Interest Oct 1, 2004
Ummc- Grenada
Grenada, MS · CCN 250168		 Hospital 5% Or Greater Direct Ownership Interest (100%)
Operational/Managerial Control		 Feb 21, 2014
Feb 21, 2014
Ummc Madison
Canton, MS · CCN 25U038		 Hospital 5% Or Greater Direct Ownership Interest (100%) May 1, 2025
Lexington Rural Health Clinic
Lexington, MS · CCN 253813		 Rural health clinic 5% Or Greater Direct Ownership Interest May 23, 2013
West Rural Health Clinic
West, MS · CCN 253812		 Rural health clinic 5% Or Greater Direct Ownership Interest May 22, 2013
Ummc- Grenada Women'S Services
Grenada, MS · CCN 258626		 Rural health clinic 5% Or Greater Direct Ownership Interest Jan 1, 2014
Holmes County Family Medicine Clinic- Vaiden
Vaiden, MS · CCN 258625		 Rural health clinic 5% Or Greater Direct Ownership Interest Oct 1, 2016
Ummc Grenada Specialty Pediatrics
Grenada, MS · CCN 258627		 Rural health clinic 5% Or Greater Direct Ownership Interest Jan 1, 2014
Children'S of Mississippi Greenwood Clinic
Greenwood, MS · CCN 258682		 Rural health clinic 5% Or Greater Direct Ownership Interest Oct 1, 2023
Ummc Greenwood Primary Care Clinic
Greenwood, MS · CCN 258679		 Rural health clinic 5% Or Greater Direct Ownership Interest Oct 1, 2023
Ummc Greenwood Women'S Clinic
Greenwood, MS · CCN 258680		 Rural health clinic 5% Or Greater Direct Ownership Interest Oct 1, 2023
Ummc Grenada Primary Medicine Clinic
Grenada, MS · CCN 258681		 Rural health clinic 5% Or Greater Direct Ownership Interest Oct 1, 2023

Medicare enrollment records

Enrollment IDStateProvider typePAC IDDetails
O20250828003960 MS Part a Provider - Hospital 1850293036 Practice locations: Canton, MS

National Provider Directory

Tax ID family
Sigurds O Krolls MD (62 organizations share this tax ID)
Part of
Sigurds O Krolls MD

Specialties & licenses

Specialty (taxonomy)CodeLicenseStatePrimary
General Acute Care Hospital 282N00000X 16243 MS Yes

Addresses

Primary practice location

161 River Oaks Drive
Canton, MS 39046-5375

Mailing address

504 Clinton Center Dr Ste 4100
Clinton, MS 39056-5610
Phone (601) 815-6381

Other identifiers

IdentifierTypeStateIssuer
08087360MedicaidMS
20705OtherMSBLUE CROSS

Other names

  • Merit Health Madison Doing business as
  • UMMC - Madison Doing business as

Other providers in Canton, MS

All providers in Canton, MS · General Acute Care Hospital in Mississippi

Sources for this page

Verify at the official NPI Registry.