Before Schwelb, Farrell and Ruiz, Associate Judges.
The opinion of the court was delivered by: Ruiz, Associate Judge
On Petition for Review of a Decision of the District of Columbia Department of Employment Services
Petitioner, David S. White, seeks review by this court of a decision of the Director of the District of Columbia Department of Employment Services affirming a determination by a hearing examiner of that agency regarding the status of White's work-related back injury. The hearing examiner, while finding that White had received an accidental injury to his right knee on October 13, 1997, which arose out of and in the course of his employment with WMATA/Hayward/Baker, also concluded that White's previous work-related back injury had resolved prior to the time that the employer ceased disbursement of workers' compensation benefits to White and denied further treatment, rehabilitation or wage loss attributable to his back condition.
In his petition for review, White asserts that the Director erred in affirming the hearing examiner's finding that his back injury had resolved because the hearing examiner failed to address or consider a treating physician's testimony to the contrary. We agree with the petitioner that the agency's determination concerning the previous work-related back injury was in contravention of our precedent that a treating physician's medical opinion must be considered and may be discarded only if sufficient reasons are given for doing so by the agency. On the present record, we make clear that no reliance can be placed on the agency's conclusions regarding the status of White's back injury. Nevertheless, as petitioner has no pending claims related to his back injury and was awarded the disability benefits he requested, we see no reason to remand the case for reconsideration of the issue and hereby dismiss the petition as moot.
The petitioner was employed as a laborer for WMATA/Hayward/Baker ("employer"), a construction contractor, when he incurred a work-related injury to his back on September 5, 1996, while doing some heavy lifting. White initially received emergency treatment at Howard University Hospital, then obtained medical treatment from the professional association of Phillips & Green, M.D. *fn1 Thereafter, as part of his continuing medical treatment for his back injury, White was sent to a work hardening program which began on September 12, 1997. On October 13, 1997, White slipped and fell, injuring his right knee while exiting a pool at the work hardening facility following an aquatic therapy exercise session. After MRI tests results indicated that White had sustained a right knee meniscal tear, Dr. Richard Meyer, one of his treating physicians, recommended that White undergo arthroscopic surgery.
The employer paid White disability benefits for his wage loss relating to his back injury until January 13, 1998. At that time, the employer ceased the disbursement of benefits to White due to reports from Dr. James Callan and Dr. David Johnson, orthopedic specialists who had examined the petitioner at the employer's request and found him fit to return to heavy work. *fn2 Thereafter, the employer refused to compensate White for any of his disability claims and declined to authorize White's requested knee surgery, claiming that the petitioner's knee injury was not related to his employment.
On June 18, 1999, a full evidentiary hearing was conducted on the matter before a hearing examiner of the District of Columbia Department of Employment Services. There, White sought an award of temporary total disability benefits under the District of Columbia Workers' Compensation Act from January 14, 1998 onward and authorization for surgery to his right knee. *fn3 As to the issue regarding the knee injury, the hearing examiner found in favor of White, stating that "[h]aving weighed the record evidence regarding causation, the most persuasive lay and medical evidence supports the compensability of claimant's claim related to his October 13, 1997 right knee injury," and that the "recommended arthroscopic surgery [was] reasonable and necessary." The examiner added that the claimant's impairment was to the right knee only and that "[a]ny disability related to the back strain claimant had on September 5, 1996, resolved prior to the period for which benefits are claimed. No further treatment, rehabilitation or wage loss is attributable to claimant's back condition."
White filed a timely application for review of the hearing examiner's decision with the Director of the Department of Employment Services, requesting that the Director reverse the portion of the compensation order which found that his wage loss during the period after January 14, 1998, was not related to his September 5, 1996 back injury and that no further medical treatment to the back was reasonable or necessary. According to the petitioner, the hearing examiner had failed to consider the deposition testimony of Dr. Meyer, White's primary treating physician, who opined that, as of March 19, 1998, the petitioner continued to suffer from problems related to his back and could not resume a full-time construction job. In a July 13, 2000 decision, the Director affirmed the hearing examiner's compensation order. The Director found no error in the hearing examiner's conclusions, stating that, after White's knee injury, his medical treatment focused on his knee "with little mention of his back and no treating physician imposed a specific work restriction concerning [White's] back after the knee injury." The Director explained that though one of White's treating physicians, Dr. Frederic Salter, had opined in March of 1998 that White was disabled for a period of one month, the hearing examiner had properly rejected that evidence and had given the required reasons for her decision to credit the medical opinions of Dr. Johnson and Dr. Callan. The Director did not refer to Dr. Meyer's opinion.
This court must affirm an agency decision unless it is arbitrary, capricious, an abuse of discretion, or otherwise not in accordance with law. See Olson v. District of Columbia Dep't of Employment Servs., 736 A.2d 1032, 1037 (D.C. 1999). In a workers' compensation case, the court defers to the determination of the Director of the Department of Employment Services as long as the director's decision flows rationally from the facts which are supported by substantial evidence in the record. See Washington Metro. Area Transit Auth. v. District of Columbia Dep't of Employment Servs., 683 A.2d 470, 472 (D.C. 1996).
In evaluating the evidence of record, however, we have also held that the Department of Employment Services must take into account the testimony of a treating physician, which is ordinarily preferred over that of a physician retained solely for litigation purposes. See Harris v. District of Columbia Dep't of Employment Servs., 746 A.2d 297, 302 (D.C. 2000). Though a hearing examiner may reject the testimony of a treating physician and decide to credit the testimony of another physician when there is conflicting medical evidence, see Canlas v. District of Columbia Dep't of Employment Servs., 723 A.2d 1210, 1212 (D.C. 1999), the agency must give reasons for such a rejection. See Clark v. District of Columbia Dep't of Employment Servs., 772 A.2d 198, 202 (D.C. 2001) (citing Canlas, 723 A.2d at 1211-12).
On petition for review, White asserts that the director erred in affirming the hearing examiner's opinion that his back injury had resolved prior to January 14, 1998. According to the petitioner, the hearing examiner "totally ignore[d]" the September 28, 1998 deposition of treating physician Dr. Meyer, which contained Dr. Meyer's opinion that, as of March 19, 1998, White was still having back pain shooting down his leg and was limited in his ...