• Treat Your Feet
    Complete Foot and Ankle Care


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Welcome to Five Cities Foot & Ankle, a podiatrist practice located in Pismo Beach and Santa Maria, CA

We want all our patients to be informed decision makers and fully understand any health issues you may face. That is why we have developed a website loaded with valuable information about podiatry and podiatric problems and treatments. We encourage you to visit this site whenever you have concern about your foot or ankle.

Our website provides you with information about our providers, maps to our Pismo Beach & Santa Maria office and other useful information. We know how hectic life can be and are committed to making our practice convenient and accessible. We want you to feel confident that you are working with doctors and other professionals who are qualified, experienced and caring.

Please take a few moments to look through this site to get a better feel for Five Cities Foot & Ankle's capabilities and services. We have been providing excellence in podiatry services in Pismo Beach, Santa Maria and the surrounding areas for over 15 years. Our exceptional physicians and staff are trained to address issues associated with bunions, diabetic wound care, foot & ankle pain, plantar fasciitis (heel pain), and most other problems of the foot and ankle. Call our office today to request an appointment or ask any questions. Thank you. 

Our Physicians

  • Dr.
    Brian O'Carroll
  • Dr.
    Byron N. Collier

Featured Articles

Read about helpful topics

  • Custom Orthotic Devices

    Custom orthotics are medical devices prescribed by a foot and ankle surgeon. These shoe inserts, which support and align the foot and lower extremities, are formed by making a plaster mold of the foot. Additional valuable information:Pediatric FlatfootHeel PainPTTDFlexible Flatfoot ...

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  • Joint Pain in the Foot

    The foot contains 26 bones and more than 30 joints. Many people experience pain involving one or more of these joints. The pain may be accompanied by swelling, tenderness, stiffness, redness, bruising, and/or increased warmth over the affected joints. Joint pain may be caused by trauma, infection, inflammation, ...

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  • Bone Healing

    How Does a Bone Heal? All broken bones go through the same healing process. This is true whether a bone has been cut as part of a surgical procedure or fractured through an injury. The bone healing process has three overlapping stages: inflammation, bone production, and bone remodeling. Inflammation ...

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  • Synovitis

    Synovitis is inflammation of the tissues that line a joint. It is commonly associated with specific diseases such as arthritis or gout, but may also be the result of overuse or trauma. Symptoms of synovitis may include redness, swelling, warmth, and pain with joint motion.Evaluation by a foot and ankle ...

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  • Intermetatarsal Neuroma

    What Is a Neuroma?A neuroma is a thickening of nerve tissue that may develop in various parts of the body. The most common neuroma in the foot is a Morton’s neuroma, which occurs between the third and fourth toes. It is sometimes referred to as an intermetatarsal neuroma. “Intermetatarsal” describes ...

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  • Fractures of the Calcaneus (Heel Bone Fractures)

    What is the Calcaneus? The calcaneus, also called the heel bone, is a large bone that forms the foundation of the rear part of the foot. The calcaneus connects with the talus and cuboid bones. The connection between the talus and calcaneus forms the subtalar joint. This joint is important for normal ...

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  • Frostbite

    Frostbite occurs when a body part is exposed to extreme cold. If conditions are cold enough for the water within the tissues to freeze and form ice crystals, cell death can occur. The feet, hands, ears and nose are particularly prone to frostbite due to their location away from the body’s core. Mild ...

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  • Brachymetatarsia

    Brachymetatarsia is a condition in which one of the bones in the front of the foot is significantly shorter than the others. Although it may affect any of the five metatarsals, it most commonly affects the fourth metatarsal. Looking at the foot, it might appear that the fourth toe itself is shorter than ...

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  • Inflammation: Acute

    What Is Acute Inflammation? Inflammation is the body’s normal protective response to an injury, irritation, or surgery. This natural “defense” process brings increased blood flow to the area, resulting in an accumulation of fluid. As the body mounts this protective response, the symptoms of inflammation ...

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  • Wounds/Ulcers

    Ulcers, which are open sores in the skin, occur when the outer layers of the skin are injured and the deeper tissues become exposed. They can be caused by excess pressure due to ill-fitting shoes, long periods in bed, or after an injury that breaks the skin. Ulcers are commonly seen in patients who have ...

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What Our Clients Say About Us

    Dr. Collier Replaced my entire left ankle one year ago..Today I walk normal and my new ankle feels wonderful--I have zero pain-the ankle feels like its normal with full range of motion--I've been hiking and walking on the beach every day..Dr. Collier is a very nice person..Very personable and answers all my questions with compassion and so easy to talk too..His staff is top notch the ladies are so nice and always greet me with a smile.

    Brian C.

    My toe hurt for ever Dr O’Carroll did surgery and my toe is done! No more pain! He went even on to help me see another Doctor for something else!! I would not go anywhere else!!

    Susie S.

    Dr. Collier is knowledgeable and thorough in his approach. He took time to explain everything and provide real, reasonable solutions for care. I was very pleased with the office, staff and Dr. Collier.

    Ericka S.


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