The Merrimack River Feline Rescue Society’s Catmobile Program is a subsidized mobile spay/neuter clinic designed specifically for cats. Our package includes a brief exam, spay/neuter, rabies vaccination for cats over 12 weeks of age (weighing 1.5kg/3.3 lbs.), and a nail trim. Our two Catmobiles are each staffed by a veterinarian and technician, and can assist up to 40 cats a day. The Catmobile  program covers the North Shore, South Shore, Central MA, Metrowest, Merrimack River Valley, and greater Boston areas.





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The Catmobile has an wish list! Check it out here!

Click here to view upcoming Catmobile dates.

Reserve your surgery spot now!


*The cost for the package is $80 for male cats and $120 for female cats.  

1200 x 627 FB Ad_CCAPRIL ONLYGet those outdoor cats you’ve been feeding fixed and vaccinated for FREE thanks to a grant from PetSmart Charities! Our program humanely traps feral, stray, and community cats, spay/neuters & vaccinates them, then returns them to their outdoor homes. Mention the Community Cat campaign to get this special rate. Please note that this is for UN-owned cats only, and is geared towards individual caretakers.


*Qualified Feral Cats are $35. All feral cats are ear-tipped, and we have limited space for these cats. Please call or email for more info.


*Microchipping is available for an additional $15.


*Individually packaged take-home flea treatment is available for $15/dose. We strongly recommend that all cats visiting the Catmobile receive good flea treatment (Frontline, Advantage – available at retail outlets; Activyl, Revolution, other – available at vets’ offices) on or around the date of their Catmobile visit!

*Please note that we have now instituted a $60 fee for late pick-ups. This fee is not negotiable and we are not able to be flexible with lateness due to our tight schedule. 

We apologize for any inconvenience; please help us out by being on time for both drop-off and pick-up!

SPECIAL NOTE ON CATS AGES 5 and OLDER: While we will book cats over the age of 5 years on the Catmobile, please be aware that our veterinarians reserve the right to turn cats over 5 away on the day of surgery if they have concerns about the cats’ health. Our vet will make that assessment once she sees the cat the day of surgery. In addition, please keep in mind that for the safety of your cat, we strongly recommend pre-operative bloodwork ahead of time (at your own veterinarian) for any cat over 2 years of age.  This bloodwork cannot be done on the Catmobile.

HAVE A PUREBRED CAT? We are unable to accommodate the following breeds due to health concerns: Bengal, Abyssinian, Somali, Persian, Himalayan, Egyptian Mau, Maine Coon, Ragdoll, Savannah, Sphinx & other hairless breeds. Please note that our veterinarians reserve the right to turn away mixed-breeds of these cats as well. This is for the safety of your cat.

Make check-in easier by printing our surgical consent form. Please sign and initial it and bring it with you on the day of your reservation. Also, Download our Catmobile FAQ’s for answers to all of your Catmobile questions, as well as important information about your visit.

You can also call 978-465-1940 between 10am-4pm Monday-Friday or email: .

With thanks to the following groups for grants supporting the Catmobile:



Lost Pet USA



With thanks to our Catmobile sponsors:


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