TRICARE Provider Relations

InStil Health TRICARE HealthCare Services (HCS), in partnership with Humana Government Business (HGB) facilitates a civilian network of providers to augment the capabilities of the Military Health System and the Military Treatment Facilities (MTFs) in South Carolina.

HCS recruits, contracts and credentials providers in South Carolina. This network of providers is broad, large and diverse. These qualities help us meet certain federal standards. We must have providers within close proximity of all members. Also, when members schedule an appointment, it should not be too far in advance. And, we must have providers maintain short office wait times. 

The strategy of HCS includes proactive provider education and relations in order to sustain a strong provider network that enables us to meet all network development requirements of the TRICARE contract.

Provider Relations Representatives along with Network Development staff ensure a high level of provider and beneficiary customer service and satisfaction by providing local and immediate assistance throughout South Carolina. Provider Relations staff are located at each InStil Health Contract Office (ICO) in the state and in our corporate office in Columbia, S.C.

HCS Network Development’s goals include optimizing the MTF capabilities, and providing high-quality, best-value health care, resulting in highly satisfied TRICARE beneficiaries and military partners.

You can contact your Provider Representatiave at the number below:

Name and Title Plan Service Area by Counties Telephone Fax

Carlotta Rose
Provider Relations Representative
Shaw AFB, Greenville-Spartanburg & Florence, South Carolina

Abbeville, Anderson, Calhoun, Cherokee, Chesterfield, Clarendon, Darlington, Dillon, Florence, Georgetown, Greenville, Greenwood, Kershaw, Laurens, Lee, Marion, Marlboro, Oconee, Pickens, Spartanburg, Sumter, Union and Williamsburg. 1-800-444-5445 x318-5936 803-666-3705

Evonne Glenn
Provider Relations Representative
Fort Jackson Moncrief Army Community Hospital, South Carolina Email:

Aiken, Bamberg, Barnwell, Chester, Chesterfield, Fairfield, Lancaster, Lexington, Newberry, Orangeburg, Richland, Saluda and York. 1-800-444-5445 x318-5928 803-782-5584

Julie Drew
Healthcare Services Consultant
Beaufort Naval Hospital, South Carolina

Beaufort, Colleton, Georgetown, Hampton, Horry, Jasper and Marion. 1-800-444-5445 x318-5938 843-982-0972
Theresa Curtis-Barnes
Provider Relations Representative

Joint Base Charleston, South Carolina
Berkeley, Charleston, Colleton and Dorchester. 1-800-444-5445 x318-5075 843-525-9416



Need more help?  Below are additional ways to get in contact with us.  
Mail correspondence to:

InStil Health Insurance Company
P.O. Box 100245
Mail Code AG-795
Columbia, SC 29202-3294

Contact our management team:

Sandy Collins
Provider Network Manager
Phone:  803-763-6620

Vivian B. Mills
Director of TRICARE SC Market
Phone:  803-763-6574

Jennifer N. Mashura
Assistant Vice President
Phone:  803-763-6623



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