Heartworm Testing Service Arlington, Ft. Worth, Grand Prairie, San Antonio & Richland Hills, TX

Penny Paws Heartworm Testing in Texas

This simple test is performed annually and is one of the most important ways you can ensure your pet’s health and happiness.

Texas is consistently in the top five states in the country when it comes to heartworm rates, according to annual surveys conducted by the American Heartworm Society. It is an ongoing battle against the parasite, which is spread through infected mosquitos, but testing and preventative treatment are the strongest weapons we have against it.

We have found that pet owners who understand the risks and realities of heartworm disease are far more likely to be vigilant in their preventative treatment.

Here are a few key facts about heartworm disease every pet parent should know:

  1. The name pretty much describes it. Heartworm is a serious progressive disease caused by parasitic worms growing in the heart, lungs and surrounding blood vessels. The worms can grow to be up to 12 inches long, they live up to 7 years, and some animals have as many as 250 worms in their system.
  2. Mosquitos are the culprit. If you live in an area with a lot of mosquitos you need to be extra careful because heartworm is transmitted through the bite of an infected mosquito. When an infected mosquito bites your dog, it leaves infected larvae on the skin that enter the bloodstream through the bite wound. That is the only way the disease is spread. It is not contagious from one dog to another.
  3. An infected dog won’t show symptoms initially. As the worms grow, however, their impact on your pet’s heart and lungs will increase, and your dog will likely develop a persistent cough, not want to eat or exercise, be easily exhausted and lose weight. The disease can ultimately be deadly, and it causes lasting damage.
  4. Prevention is key. By getting your dog tested annually and administering a heartworm prevention medicine you are taking vital steps to ensure your dog does not contract this serious disease. The cost of treatment can easily be 10 times more expensive than the cost of prevention. Even when treatment is successful, a dog who has been infected risks enduring long-term damage to the heart and lungs.

Vigilance is important, especially in Texas as we can have a year-round mosquito season. Monthly preventative treatment along with regular testing is the best way to ensure this nasty disease doesn’t harm your pet.

Once we test your pet, we can give a 1 yeart shot to prevent heartworms. No more having to remember to give a monthly pill and running the risk of forgetting!

If you have any questions about Heartworm Prevention please don’t hesitate to contact us directly.

Additional Penny Paws Services

Pet Vaccinations

Heartworm Testing

Pet Microchips

Annual Bloodwork

Teeth Cleaning

General Surgery

End of Life Care

Spay / Neuter

Fecal Testing

Ultrasound / Echocardiogram

Seasonal Allergies 

Pet Boarding

Emergency Services

Pet Grooming

What Our Customers are Saying

“Dr. Nelson was so sweet and patient through all of my questions. The staff here are amazing and genuinely care about the animals. Dr. Nelson and the vet tech both got on the floor with my dog to make her feel more comfortable. It was half the price of our old vet and the care was WAY better. This will definitely be the only vet we visit from now on.”

– Emily

“I absolutely love Penny Paws at Basswood Crossing! I have 3 cats and 2 dogs and have been taking them all there for about 2 years now. We usually just go to the Saturday clinics for shots, but the entire staff still remembers all of my animals each time! They’re such a great group of people and truly love animals there. I’ve lived all over the US and have never found a vet’s office that is so loving.”

– Amber

What you should know before bringing your pet to Penny Paws

Penny Paws has four full-service clinics, three of them having dog boarding facilities, and also offer affordable pet vaccinations at their mobile locations on the weekends. Be sure to follow Penny Paws on Facebook to receive updates on when the mobile vaccinations clinic will be in your neighborhood next!

You do not necessarily need an appointment for our clinics, we do accept walk-ins but if your animal is sick, it is recommended to have a scheduled appointment in order to see one of our experienced veterinarians.

Owners should also note that prices for services and surgeries vary depending on the weight and size of your pet and the extent of medical attention they may need due to their condition. Our veterinarians and staff will be sure to brief you on all costs and fees before proceeding with the treatment recommended for your animal. For payment, we accept cash, credit cards, and payment plans through Care Credit or Scratchpay. If you have any questions regarding this, our staff and receptionists can answer them at your appointment, or by phone call today.

Contact us at any of our clinic locations or mobile pet vaccination locations today for more information on our services or to book your appointment!

Find a Penny Paws mobile clinic near you!

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Hounds Town -NE

13215 Judson Rd, San Antonio, TX78233

9am-12pm: 10/24/2026


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San Marcos Animal Shelter

750 River Road, San Marcos, TX 78666

1pm-5pm: 10/24/2026


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Pet Purr-Fection

540 Clay Mathis Rd #100, Mesquite, TX 75181

9am-4pm: 10/24/2026


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Family Dollar

9803 Potranco Rd, San Antonio, TX 78251

1pm-5pm: 10/25/2026


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Animal Care Facility

8755 Farm to Market 1516, Converse, TX 78109

12pm-2pm: 10/24/2026


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Flagship Medical

7616 Culebra Rd Ste. 130, San Antonio TX 78251

9am-12pm: 10/25/2026


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Karma's Cozy Kennel & Spaw

6630 FM 78 #101, San Antonio, TX 78244

3pm-5pm: 10/24/2026


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Schertz Animal Services

800 Community Circle, Schertz,TX 78154

9am-11am: 10/24/2026


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Penny Paws Animal Clinic parking lot

3179 Thousand Oaks, San Antonio, TX 78247

9am-4pm: 10/24/2026, 10/31/2026


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Penny Paws Animal Clinic parking lot

3179 Thousand Oaks, San Antonio, TX 78247

9am-4pm: 10/25/2026


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Walmart Neighborhood Market

1515 S Ellison Dr, San Antonio, TX 78245

9am-4pm: 10/31/2026


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Walmart Neighborhood Market

1515 S Ellison Dr, San Antonio, TX 78245

1pm-5pm: 10/24/2026


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McCoy's Building Supply

4070 E State Hwy 287, Midlothian, TX 76065

12pm-2pm: 10/25/2026


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Penny Paws Arlington/Mansfield

740 W Turner Warnell Road, Arlington, Texas, 76001

Saturday 8am-4pm (1st come 1st serve): 10/24/2026, 10/31/2026

Penny Paws Richland Hills

7610 Glenview Drive, Richland Hills, Texas, 76180

Saturday 8am-4pm (1st come 1st serve): 10/24/2026, 10/31/2026

Penny Paws Fort Worth

3748 Basswood Boulevard Fort Worth, Texas 76137

Saturday 8am-4pm (1st come 1st serve): 10/24/2026, 10/31/2026

Advance Auto

8603 Culebra Rd, San Antonio, TX 78251

9am-4pm: 10/24/2026, 10/31/2026


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Family Dollar

5523 Babcock Rd, San Antonio, TX 78240

12pm-2pm: 10/25/2026


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Family Dollar

6415 Spring Time Dr, San Antonio TX 78249

9am-11am: 10/25/2026


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Grand Prairie Animal Clinic

2325 W. Warrior Trail Grand Prairie, TX 75052

Saturday 8am-4pm (1st come 1st serve): 10/24/2026, 10/31/2026

Cricket Wireless (City Base)

3103 SE Military Dr STE 107T

3pm-5pm: 10/25/2026


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Penny Paws Arlington/Mansfield

740 W Turner Warnell Road, Arlington, Texas, 76001

Sunday 8am-1pm (1st come 1st serve): 10/25/2026

Penny Paws Richland Hills

7610 Glenview Drive, Richland Hills, Texas, 76180

Sunday 8:00am-12:30pm (1st come 1st serve): 10/25/2026

Grand Prairie Animal Clinic

2325 W. Warrior Trail Grand Prairie, TX 75052

Sunday 8am-1pm (1st come 1st serve): 10/25/2026

Foodland

610 Ferris Ave. Waxahachie, TX., 75165

9am-4pm: 10/24/2026, 10/31/2026


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Animal Clinic

101 N. Westmoreland Road, DeSoto, Texas 75115

8am-4pm (1st come 1st serve): 10/24/2026, 10/31/2026

Animal Clinic

101 N. Westmoreland Road, DeSoto, Texas 75115

9am-4pm: 10/25/2026


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Atwoods Home & Ranch

6001 Lake Worth Blvd, Fort Worth, TX 76106

9am-4pm: 10/24/2026, 10/31/2026


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Atwoods Home & Ranch

1380 FM1187, Crowley, TX 76036

9am-4pm: 10/24/2026, 10/31/2026


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Seguin Animal Services

555 Fred Byrd Dr, Seguin, TX 78155

9am-12pm: 10/24/2026


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Atwoods Home & Ranch

2825 Aspen Wy, Waxahachie, TX 75165

9am-4pm: 10/25/2026


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Pet Supplies Plus

791 N Hwy 77 Suite 205, Waxahachie, TX 75165

3pm-5pm: 10/25/2026


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Albertsons

427 E FM 1382, Cedar Hill, TX 75104

9am-11am: 10/25/2026


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What Our Customers are Saying

“Dr. Nelson was so sweet and patient through all of my questions. The staff here are amazing and genuinely care about the animals. Dr. Nelson and the vet tech both got on the floor with my dog to make her feel more comfortable. It was half the price of our old vet and the care was WAY better. This will definitely be the only vet we visit from now on.”

– Emily

“I absolutely love Penny Paws at Basswood Crossing! I have 3 cats and 2 dogs and have been taking them all there for about 2 years now. We usually just go to the Saturday clinics for shots, but the entire staff still remembers all of my animals each time! They’re such a great group of people and truly love animals there. I’ve lived all over the US and have never found a vet’s office that is so loving.”

– Amber

Book An Appointment at a Veterinary Office Location Today!

Richland Hills Animal Clinic
7610 Glenview Drive
Richland Hills, TX 76180
Phone: (817) 284-PAWS (7297)

Ft. Worth Animal Clinic

3748 Basswood Boulevard,

Fort Worth, Texas, 76137

Phone: (817) 522-1992

Arlington/Mansfield Animal Clinic
740 W Turner Warnell Rd
Arlington, TX 76001
Phone: (817) 382-9229

Grand Prairie Animal Clinic
2325 W. Warrior Trail,
Grand Prairie, Texas 75052
Phone: (682) 253-5177