I have seen that several times. Mombassa is in an area called the Coastal Section which was part of Zanzibar. The inhabitants of the area were related to the people in Kenya and intended to be part of the entity the Brits carved out as Kenya.
In October, 1963, an agreement was entered into between Zanzibar and the Coastal area pursuant to which Zanzibar released any claim to the Coastal area and consented that it would become part of the Republic of Kenya at which point all local governmental agencies and titles immediately retitled themselves "Republic of Kenya" in order to memoralize the agreement.
One thing I do not know is how the "Provence" was attached to the Coastal area--was it a provence in the civil colonial administration of the Brits? I believe the correct title of the Hospital was the Coastal Provencial General Hospital--on the certificate it is removed--I assume because the Coastal area was a Provence of Zanzibar. Someone ought to make a point of looking that up.
Again, I assume Mr. Farrah has considered that and addressed the issue. Someone might want to forward him this post.
Post 327
This http://www.mombasahospital.com/history.html appears to be the right hospital, it identifies the hospital as THE MOMBASA HOSPITAL in the Coast Province.
Check out # 327.