I have no experience with them because I have used Tidewater, Three Notch and the 24 hour place in Waldorf. When my dogs needed treatment for a liver shunt and cardiomyopathy I was referred to Anne Arundel Veterinary Emergency Clinic 808 Bestgate Rd, Annapolis (410) 224-0331 (Three Notch and the 24 hour place in Waldorf referred me to them for both of the above conditions) Anne Arundel is expensive but they knew what they were doing. Try Tidewater if you are not happy with Waldorf Animal Clinic. When my parents dog had Lymes the vet ran a blood test and placed him on antibiotics. They took him because he would not put weight on his front paw and the blood test confirmed Lymes.
Good luck with your big guy
