Yes, that till from NGS is accurate! Also, I found this FAQ from CMS when they first implemented the 30-day reassessments....
Question 7: How should home health agencies and providers count therapy visits to ensure
that they are meeting the "at least every 30 days" visit requirement?
Answer 7: For determining when the next therapy reassessment visit by a qualified therapist
(for each discipline if multiple types of therapists are caring for the patient) would be required
as it relates to the "at least every 30 days-requirement, the counting should begin the day after
the service is provided. For example, if a therapist conducted and documented an assessment
of a patient during a visit on April 1, the count would begin on April 2. In this case, to meet
the requirement of making at least one visit every 30 days, the therapist rather than an assistant
would need to return by May 1. The therapist then conducted and documented an assessment
of the patient during a visit on May 1, the clock resets and the next 30-day count would begin
May 2. We note that the intent of the policy is to ensure that at a minimum, a patient sees a
therapist rather than an assistant at least once every 30 days. Also, this requirement is in
addition to the 13th and 19th visit requirements that occur for each episode that a beneficiary
receives home health services.