Contact Information

Angel of Mercy Animal Critical Care
8734 Grissom Road
San Antonio, TX 78251
Phone: 210-684-2105
Fax: 210-256-0088

Business Hours:
All Night, Seven Days
Open Monday–Thursday, 6 p.m.–8 a.m.
Open 24 Hours on the Weekends
Friday 6 p.m.–Monday 8 a.m.
Open 24 Hours on Holidays


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Angel of Mercy Animal Critical Care
8734 Grissom Road, San Antonio, TX 78251

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1) Do you offer any discounts?
Yes, we offer Military Discounts with an ID.

2) How much are exams for my animal?
Our basic exam fee is $60.

3) Do you offer payment plans / options?
We accept all major credit cards, cash, checks and CareCredit. Payment is due at time of services, with proper ID. 

4) What is CareCredit?
CareCredit is a specialized credit card that may be used for medical services – included are veterinary services, and medical and dental services. You can apply by phone at 800-365-8295 or online at
5) What types of pets are treated at Angel of Mercy Animal Critical Care?
We primarily treat dogs and cats. However, we do have relief veterinarians who may treat exotic pets (example: rodents, ferrets, birds, reptiles, etc.). Please call before bringing in your exotic pet to ensure that the veterinarian on staff will see him / her.
6) What should do if you pick up a stray animal?
You may call Animal Care Services at 311 or 210-737-1442. Picking up a stray animal entails accepting financial responsibility, as well as ownership of the animal. Unfortunately, our facility limitations do not allow us to accept stray animals.
7) Does Angel of Mercy Animal Critical Care offer vaccines and other routine veterinary care?
Being an emergency veterinary hospital, we do not offer vaccines and routine veterinary care. Please contact a regular daytime veterinary hospital for these types of services.

Helpful Links

National Animal Poison Control

Pet Poison Helpline

San Antonio Humane Society

Spay-Neuter Assistance Program, Inc.

Animal Care Services
210-207-4738  or 311

Spay Sa

Animal Defense League

Wildlife Rescue