Original sentence: The urgent care center offers a variety of services such as physician appointments, mental health, health education programs, and lab and X-ray work.

My corrections: The urgent care center offers physician appointments, mental health evaluations, health education programs, lab analysis, and X-ray screenings.

Did I correct the parallelism problems in this sentence?

appointments

evaluations
programs
analysis (The others are all plural, maybe tests)
screenings

Yes, you corrected the parallelism problems in the sentence. In the original sentence, the list of services was not parallel because it mixed noun phrases (physician appointments, mental health) with noun clauses (health education programs, lab and X-ray work).

To correct this, you made sure that all the items in the list were parallel by using noun phrases consistently. You changed "mental health" to "mental health evaluations," "lab and X-ray work" to "lab analysis," and "health education programs" remained the same. Now, the sentence is parallel and clearer to understand. Good job!