I no longer live in NYC but Animal Medical Center in mid-town was always amazing.
My homecare vet, was beyond amazing, same price range as NYC vet offices and has affiliations for when you need testing, etc. Andrew Obstler, homecarevet@gmail.com. He saw Aquitaine and I through her PLC and kidney disease. She, too, had very low albumin levels but had them well before diagnosis (that came after her splenectomy and tumor removal). I lost her to osteo so I have to say that Andy and AMC did a tremendous job helping me with her. Both were very open to me using supplements along with traditional medicine as well.