Alan Gant, D.O. was employed by Hyg-eia Facilities Foundation, Inc. as a family practitioner at the Raleigh-Boone Medical Center in Whitesville, West Virginia from 1 June 1982 through 31 July 1987. After Dr. Gant resigned, he sought a declaratory judgment to void a restrictive covenant in his employment contract prohibiting him for a period of three years from practicing within thirty air miles of Whitesville. Because we agree with the circuit court that the restrictive covenant is reasonable and enforceable, we affirm the judgment of the Circuit Court of Boone County.
After completing his medical education and residency, Dr. Gant sought and secured employment with the Foundation as a family practitioner at their Raleigh-Boone Medical Center located in Whites-*807ville. The Foundation is a nonprofit corporation chartered in 1955 for the purpose of providing good medical services to under-served, rural areas in southern West Virginia. In addition to the Whitesville clinic, the Foundation maintains seven other facilities. The primary care center in Whites-ville is staffed by three physicians (one of whom was Dr. Gant) and offers physician services, ancillary services such as pharmacy, x-ray and laboratory, specialty services and community living services. During the first nine months of 1987, the Raleigh-Boone Medical Center had 13,460 patient visits of which 9,499 were doctor visits. Most of the approximately 12,000 active patients of the Center live in adjacent areas and forty-five percent of them live within a 13 mile area along West Virginia Route 3 between Whitesville and Seth.
When Dr. Gant began his employment he entered into a contract with the Foundation that contained a restrictive covenant. In his second employment contract dated 7 June 1984 the restrictive covenant was modified at Dr. Gant’s request to read:
In the event of the termination of my employment with the Foundation, I will not practice medicine within a 30 air mile radius of any medical facility owned and operated by the Foundation, in which I have worked, for a period of three (3) years subsequent to termination of my employment with said Foundation, except with the written permission of said Foundation. (Underlining indicates addition requested by Dr. Gant.)
After Dr. Gant resigned his employment with the Foundation for personal medical reasons, he opened a private family practice on 1 September 1987 at Seth.
On 18 September 1987 Dr. Gant sought a declaratory judgment to void the restrictive covenant in his employment contract. The Foundation counterclaimed seeking an injunction to enforce the covenant. The circuit court conducted a full hearing on the matter and determined the restrictive covenant was not unreasonable and granted the Foundation an injunction prohibiting Dr. Gant from practicing medicine within a thirty air mile radius of the Foundation’s clinic in Whitesville.
I
In Reddy v. Community Health Foundation of Man, 171 W.Va. 368, 298 S.Ed.2d 906 (1982), we discussed a contract with a similar restrictive covenant between a physician and another nonprofit corporation also chartered for the purpose of providing good medical services in a rural area.1 The restrictive covenant in Reddy, Id. 171 W.Va. at 371, 298 S.E.2d at 909, prohibited Dr. Reddy from “practicing medicine within a radius of thirty (30) air miles of Man, West Virginia, for period of three (3) years.... ” In Reddy we determined that restrictive covenants are subject to a rule of reasonableness. Id. 171 W.Va. at 373, 298 S.E.2d at 911. After we acknowledged that the rule of reasonableness is foggy, we examined social and economic considerations that would transform the rule “into a rule of best result.” Id. 171 W.Va. at 374, 298 S.E.2d at 911-12. To determine if a restrictive covenant is reasonable, we used a three part inquiry: “A restraint is reasonable only if it (1) is no greater than is required for the protection of the employer, (2) does not impose undue hardship on the employee, and (3) is not injurious to the public.” Id. 171 W.Va. at 374, 298 S.E.2d at 911.
The Foundation, similar to the employer in Reddy, is a nonprofit organization that services its communities by assuring that quality health care is available in the local area. The Foundation brings doctors into its areas by providing various administrative and financial incentives and relies on these doctors to continue to help the Foundation serve the local area. The restrictive covenant is designed to protect the good*808will of the patients who have been served by the Foundation.2
Otherwise doctors would come to town, work for the clinic until they built a substantial practice, and then operate a private office, taking business away from the clinic. The Foundation argues that if doctors are permitted to “rob” the clinic of its patients, the Foundation will lose needed revenue and, since it relies on clinic charges to stay solvent, the clinic will no longer be able to assure quality health care for the people of [its service area].
Reddy, supra, 171 W.Va. at 381, 298 S.E.2d at 918. In Reddy we noted that “the heart of all enforceable covenant not to compete is the principle of avoiding unjust enrichment.” Id. 171 W.Va. at 381, 298 S.E.2d at 919. “The covenant is thus a response to the unjust enrichment of doctors that would be the result of the Foundation’s labors if the clinic were left unprotected.” Id.3
In the present case the restrictive covenant is reasonable on its face; it was included in the contract for a valid business purpose and was not designed to intimidate Dr. Gant.4
II
Once a restrictive covenant has been shown to be reasonable on its face, the burden remains on the employer to show his interests require protection. See Syllabus Point 5, Reddy, supra. In Syllabus Point 3, Reddy, supra, we stated:
An inherently reasonable restrictive covenant is presumptively enforceable in its entirety upon a showing by the employer that he has interests requiring protection from the employee.
Dr. Gant opened his solo practice in Seth, located thirteen miles north of Whitesville along West Virginia Route 3. The Foundation presented evidence showing the primary service area where ninety percent of the active patients for the Whitesville clinic live included, not only Seth, but as far north and west as Racine and Peyton. The Foundation also noted that the forty-five percent of active patients of the Whitesville clinic live in the area along West Virginia Route 3 between Whitesville and Seth.5 Although Dr. Gant maintains that his practice is not in competition with the Foundation, in the two and one-half weeks between the start of Dr. Gant’s practice in Seth and the hearing, twenty one former patients requested their medical records be transferred to Dr. Gant’s office.
In Torbett v. Wheeling Dollar Sav. & Trust Co., 173 W.Va. 210, 314 S.E.2d 166, 169 (1983) we held that the existence of an employer’s interest requiring protection from the employee is a question of fact for a jury or trial court sitting as a fact finder. In the present case, the trial court sitting as a fact finder determined that the Foundation had met its burden of proving an interest requiring protection from the employee. In Syllabus Point 5, Saunders v. Roselawn Memorial Garden, Inc., 152 W.Va. 91, 159 S.E.2d 784 (1986), we stated:
A finding of fact made by a trial chancellor or by a trial court sitting in lieu of a jury will be given the same weight as the verdict of a jury and will not be disturbed by this Court on appeal unless the evidence plainly and decidedly preponderates against such finding.
See Torbett, supra, 173 W.Va. at 214, 314 S.E.2d at 170.
*809The Foundation met its burden of proving it had legitimate interests that its covenant was designed to protect and, therefore, the restrictive covenant is presumptively enforceable.
Ill
Because the Foundation met its burden of proving the reasonableness of the restrictive covenant and a need for protection, the burden of proof shifted to Dr. Gant to show the covenant should not be enforced in its entirety. Syllabus Point 5, Reddy, supra. In Syllabus Point 4, Reddy, supra, we stated:
An employee may rebut the presumptive enforceability of a restrictive covenant by showing: (1) that he has no “trade assets” of the employer to convert; (2) that such “trade assets” as he has belong to him and not to the employer; (3) that the employer could be equally well protected by a narrowed covenant; or (4) that the employer has had time to recoup any extraordinary investment in the employee.
Dr. Gant maintains that the Foundation not only recovered its initial costs incurred for him at the start of his practice of medicine, but in the five years he worked for the Foundation, the Foundation earned fees that more than compensated it. In support of this argument Dr. Gant noted that during the first seven months of 1987 he was paid only $56,847.95 but generated $150,953.97 in fees collected by the Foundation. However, the Foundation seeks to enforce its covenant, not to recover any initial costs it incurred in hiring Dr. Gant, but rather to protect the goodwill of the patients it served for over 30 years.6 Without a covenant to protect the Foundation, Dr. Gant would be able to use the goodwill of sufficient patients to allow him to open his own practice — goodwill he gained while working in a risk free environment. The Foundation bore costs of Dr. Gant’s acquisition of patient goodwill while they paid him a salary over the course of his five year employment in excess of $500,000.7 Thus, Dr. Gant failed to demonstrate that a narrowed covenant would equally well protect the Foundation’s interest in the goodwill of its patients.
For the above stated reasons the judgment of the Circuit Court of Boone County is affirmed.
Affirmed.
. Reddy, Id. 171 W.Va. at 371-72, 298 S.E.2d at 909, contained four "perplexing factual problems”; none of which exists in the present case because Dr. Gant: (1) had no patients or practice independent of the Foundation; (2) was *808employed by the Foundation; and (3) was aware of and even modified the restrictive covenant.
. Reddy identified two assets, in addition to customer goodwill, that employers traditionally seek to protect with restrictive covenants: (1) special information imparted to the employee; and, (2) skills acquired by the employee on the job. Reddy, supra, 171 W.Va. at 374, 298 S.E.2d at 912.
. Both Dr. Gant and the Foundation desire to provide medical services to the same area. Although Dr. Gant’s patients prefer his services, this preference is not evidence that enforcement of the covenant would be injurious to the public.
. Reddy, Id. 171 W.Va. at 383, 298 S.E.2d at 921, found a similar restrictive covenant "sufficiently reasonable that it is not invalid on its face.”
. Dr. Gant maintains that the Foundation, through discovery, should have obtained the additional data concerning his practice. We note Dr. Gant never presented the data about his practice.
. See Reddy, supra 171 W.Va. at 376-77, 298 S.E.2d at 914 for a discussion of the need for judicial modification when an employer’s legitimate interest in recoupment of special training costs is protected by an overly broad restrictive covenant.
. Dr. Gant also argues that it would be a material hardship for him to practice somewhere other than the Seth area because his home and extended family are located there. While we are in sympathy with Dr. Gant’s interest in practicing medicine in southern West Virginia, the covenant does not preclude such a practice outside the thirty (30) air mile radius of Whitesville for a three (3) year period.