John Zavaleta, RPh, MD
My name is Dr. John Zavaleta. I am an OBGYN and Medical Director for MacArthur Medical Center for Hormone Balance and Wellness. I have 28 years of clinical experience, specializing in Pelvic Organ Prolapse and Hormone Replacement Therapy and practicing in Irving, Texas 75062. I am currently accepting new patients.
Can I answer any questions for you?
John Zavaleta, RPh, MDDr. John Zavaleta was born and raised in Brownsville, Texas. He graduated from the University of Texas in Austin with honors in Pharmacy. He practiced as a pharmacist for three years before deciding to go to medical school. He then graduated from the University of Texas Southwestern Medical School in 1981, followed by his residency at Baylor Medical Center in Dallas where he was Chief Resident specializing in Obstetrics and Gynecology.
Women’s health has been his passion since he began his practice in 1985. He believes it is important that his patients have the quality of life they deserve. He is a Diplomat of the American Board of Obstetrics and Gynecology, a Fellow of the American College of Obstetrics and Gynecology, and the American Urogynecologic Society, and a member of the Society of Urodynamics, Female Pelvic Medicine, and Urogenital Reconstruction. He keeps current with the most advanced procedures in women’s healthcare. Dr. Zavaleta was recently chosen to be one of a handful of investigators across the country to do research for a major national company that produces biologic material for surgical procedures. He has been a board-certified gynecologist for over 25 years and has accrued over 700 hours of continuing medical education in the area of incontinence, bladder dysfunction, and pelvic floor anatomy and rehabilitation.
Dr. Zavaleta believes his patients should feel comfortable in his office, and should feel free to express their concerns. It is his personal commitment to ensure his patients quality of life through superior care and the most current procedures and resources available today.
Las Colinas OBGYN
Address3501 N MacArthur Blvd
Irving, TX 75062
8:00 am - 4:30 pm
Tue: 8:00 am - 4:30 pm
Wed: 8:00 am - 4:30 pm
Thu: 8:00 am - 4:30 pm
Fri: 8:00 am - 12:00 pm
Sat: By Appointment Only
Service Locations:DFW, TX, Plano, TX, Carrollton, TX, Coppell, TX, Dallas, TX, Grand Prairie, TX, Frisco, TX, Lewisville, TX, The Colony, TX, Arlington, TX, Bedford, TX, Euless, TX, Fort Worth, TX, Grapevine, TX
Bioidentical Hormone Replacement Therapy (BHRT) May Treat Adrenal Fatigue
Your insomnia, body aches, and decreased libido may all be linked to your adrenal glands, which may be struggling to produce cortisol, a crucial hormone that helps regulate your “fight-or-flight” response. When your body is under extreme stress your adrenal glands can begin producing cortisol in disruptive fits and starts. Hormone replacement therapy may balance those levels and improve your symptoms.
Preventing the Onset of Illness and Age-Related Diseases
Getting older is a fact of life, and most people believe that aging is just as inevitable. To some extent that's true, but what's also true is that with the proper medical guidance, you can enjoy a healthy and fulfilling life well into your golden years. One of the most effective methods for accomplishing this is known as age management.
Fight Back Against Old Age
Anti-aging medicine employs the latest scientific research, advances in biotechnology, and clinical preventive medicine to slow down conditions associated with aging. Through preventive screenings, early disease detection, prompt intervention, and optimal nutrition, anti-aging physicians help fight and slow down age-related disease and dysfunction.
Learn About Bioidentical Hormones (BHRT)
For women, menopause is a major concern while men deal with andropause and low testosterone. Many age-related issues are the result of hormonal imbalance. Your body has a complex collection of glands called the endocrine system. Each of these glands generates crucial hormones, such as testosterone, estrogen and progesterone. Excessive or reduced levels of these hormones can wreak havoc on your system. Bio-identical hormone replacement, or BHRT, is the only safe, natural solution to hormonal imbalance.
Treat Stress with Hormones & Relaxation
We all deal with stress, from work to family and everything in between; stress is a part of the body's natural fight-or-flight response. When you're constantly feeling stressed, however, you have a condition known as chronic stress. There are many factors that contribute to chronic stress, and a similarly high number of treatment options.
Achieve Better Sleep with BHRT
Everyone has trouble falling asleep sometimes, but when the condition happens repeatedly it can begin to affect multiple aspects of your life. Insomnia can impact your ability to function at school, in the workplace, and even at home.
Andropause, Low Testosterone and More
Hormones play a crucial role in the functioning of your body. Their levels and balance, also known as male hormone harmony, are extremely important for your health, physical shape, and well-being. As a man ages, his body becomes less effective in producing these vital hormones. Hormone levels fall to unhealthy levels, creating a hormone imbalance in his body.
Menopause, Hormones and Aging
Hormones play a crucial role in the functioning of your body. Their levels and balance, also known as female hormone harmony, are extremely important to your health, mood, and well-being. As a woman ages, her body becomes less effective in producing these vital hormones. Hormones fall to unhealthy levels creating a hormone imbalance in your body. Female hormones must stay in perfect hormonal balance for your body to function optimally.
Stress, Energy and Hormones
Everyone deals with stress, from minor issues to major life crises. Cortisol, also known as hydrocortisone, is a steroid hormone that dictates the body's energy and stress levels. Cortisol is the motivating factor for what is typically called the "fight or flight" response. Cortisol is good for the body as a whole, but imbalanced cortisol levels can have lasting, damaging effects on health.
The 'Mother of All Hormones'
Dehydroepiandrosterone, more commonly known as DHEA, is one of the most crucial hormones your body produces. Sometimes referred to as the "mother of all hormones," DHEA is secreted by the adrenal glands and plays a role in sexual function and even acts as precursor to other hormones in your body, such as estrogen and testosterone. DHEA imbalance can cause a variety of serious symptoms.
Vital Nutrients for Optimal Health
Proper supply of vital nutrients is essential to your well-being and optimal health. Your body needs a well-balanced diet and necessary dietary supplementation for desired mental and physical performance.
Menopause, Age and Women's Health
Low estrogen levels can cause numerous health issues. Though the estrogen hormone is commonly associated with perimenopause and menopause, low estrogen levels can occur for other reasons. Estrogen replacement therapy, or ERT, provides relief from the many debilitating symptoms caused by low estrogen levels.
Women's Health & Hormones
As doctors learn more about hormones, it becomes clear that hormonal imbalance is caused by more than an overabundance or deficiency of any one hormone. Rather, your body's endocrine system is a delicate balance of multiple hormones. This is the case with estrogen dominance syndrome, a condition that's caused by overproduction of estrogen coupled with underproduction of progesterone.
The Underlying Causes of What Ails You
Functional medicine is devoted to discovering the underlying causes of chronic medical conditions. Viewing your body as an integrated system, functional medicine uses a systems-oriented approach to patient-centered care.
Fight Aging with BHRT
As we age, it becomes more important than ever to schedule regular appointments with a health care professional. A geriatric care physician can help you maintain the quality of your lifestyle. Your doctor can create a physical examination regimen and wellness plan to fit your individual needs.
BHRT and Male Breasts
Male breasts, or gynecomastia, are a condition that's both embarrassing and dangerous. Breast growths can occur in men of any age and sometimes signify a serious illness. Thankfully, gynecomastia is treatable with cosmetic surgery.
Your Thyroid and BHRT
Hashimoto's disease, also known as Hashimoto's thyroiditis, is a chronic autoimmune disease. Hashimoto's disease causes the body's immune system to function incorrectly, resulting in damage to thyroid cells and the inability to manufacture thyroid hormones.
Saliva, Blood and Urine Tests
Many people find themselves concerned with their hormone levels. Imbalanced hormones, such as estrogen, testosterone and DHEA can cause serious health problems. Hormone level testing gives doctors a way to analyze your current hormone levels to see if you are deficient or overloaded with any particular hormone.
Feel Energetic Again with BHRT
If you've been experiencing severe exhaustion that's lasted longer than six months, you may be suffering from Chronic Fatigue Syndrome (CFS). If left unchecked, CFS could not only leave you at a loss for energy, it could begin to diminish your quality of life.
Struggling with Hormonal Imbalance
Occasionally feeling upset is a natural part of life, but most of the time we're able to snap out of it on our own or with the help of someone who's close to us. When the feeling of unhappiness becomes severe, (lasting for days, weeks, or even months), it can affect everything that's important to you, including your health.
Low-T and Your Love Life
There are a number of factors in a man's body that play a role in forming an erection. It is a combination of physical properties such as the nerves, muscles, and blood vessels as well as mental and chemical attributes involving the brain, hormones, and emotions.
Hormone-Induced Pain Treatment
Fibromyalgia can be defined as pain felt throughout the entire body. The effects are long lasting and are specifically experienced in the muscles, tendons, and other soft tissues. The pain may also feel like it is in your joints, although fibromyalgia does not physically affect these areas.
Treat Hormone-Induced Headaches & Migraines
Headaches have been experienced by almost everyone at some point in their lives. For example, up to 90% of adults have reported experiencing tension headaches, and 28 million people in the United States alone have had a migraine. There are currently 150 different categories of headaches that vary in intensity, cause, and cure.
Balancing Hormone Levels for Optimal Wellness
Many people unknowingly suffer from hormone imbalance. Imbalanced hormones can cause a host of medical problems and should be dealt with as soon as possible. Hormone imbalance is a general term that can refer to upset levels of any variety of your body's natural regulatory substances.
Hormones & Your Thyroid Gland
When your body produces too much thyroxine (an overactive thyroid), hyperthyroidism results leading to many trouble symptoms like fatigue, anxiety and sudden weight loss. Bioidentical hormone replacement therapy can help to balance your hormones and bring you relief!
Harness the Power of Hormones to Combat an Underactive Thyroid
An underactive thyroid, known as hypothyroidism, occurs when you thyroid gland fails to produce enough T3 and T4. Bioidentical hormone replacement therapy is an effective solution to help raise these levels and to alleviate many of the symptoms associated with the condition.
Natural Treatment to Enhance Sexual Health
Low libido in both men and women creates strained relationships, increased stress levels, fatigue and poor self-esteem. Often caused by a hormonal imbalance, low libido is successfully combatted through the use of bioidentical hormone replacement therapy, a natural treatment that focuses on optimizing your hormone levels.
Natural Treatments to Bolster Your Memory
Occasionally forgetting things is just a normal fact of life. It's even somewhat expected that we'll lose portions of our memory as we age. Aside from these natural phenomena, a significant loss of memory could be a serious condition that should not be ignored.
Symptoms and Causes of Menopause
Menopause refers to the end of a woman's menstrual cycle. Typically starting in the 40s or 50s, women lose the ability to produce eggs, which causes estrogen levels to drop and monthly menstruation to cease. Menopause is a natural part of women's health, but there are many menopause treatments that mitigate or reduce problems associated with the condition.
Strengthen Bone Health with BHRT
Menopause can cause a drop in estrogen levels in women which can be detrimental to bone health. Bioidentical hormone replacement therapy (BHRT) can replace the deficient estrogen in your body to help maintain bone mass and prevent the onset of osteoporosis symptoms.
A Hormonal Imbalance that Could Cause Serious Health Problems
In addition to the female hormones estrogen and progesterone, the ovaries produce small amounts of male hormones. In some instances, the ovaries produce larger quantities of these chemicals, leading to a condition called polycystic ovary syndrome.
BHRT for Women's Health
Premenstrual dysphoric disorder (PMDD) is a severe extension of the symptoms that occur during premenstrual syndrome (PMS). Between 2% and 10% of menstruating women experience PMDD. The physical symptoms of PMDD, such as breast tenderness, fatigue, and bloating, are similar to PMS, but the emotional conditions can be debilitating. They can interfere with a woman's life at work, school, or home, keeping her from the doing the things she loves, or even from interacting with friends and family.
Enjoy a Happier Life through BHRT
A woman's regular menstrual cycle can bring about more than 150 symptoms, both physical and emotional. They generally show up during the time between her ovulation and menstrual bleeding in what's called the luteal phase. The luteal phase usually begins about 14 days from the first day of her last menstrual period. Premenstrual symptoms can arise at any point during this phase and continue through the second or third day of the menstrual period.
Restoring Balance to Your Thyroid Hormones
Your thyroid gland is critical to the overall health of your body. In certain instances, your thyroid gland can dysfunction, causing your thyroid to produce too much (hyperthyroidism) or not enough (hypothyroidism) thyroid hormone. To restore your overall wellness, bioidentical hormone replacement therapy can naturally help normalize your hormone levels.
Return to Normal Life
Loss of bladder control, or urinary incontinence, is a problem that many experience as they age. Having the inability to control when you urinate or dealing with urinary leakage can cause embarrassment and make enjoying your life difficult.
How BHRT is Distributed
Bio-identical hormone therapy, or BHRT, is quickly becoming the preferred method for treating hormonal imbalances. From low estrogen to low testosterone to thyroid gland complications, BHRT provides a safe, effective solution. If you've looked in to BHRT, you may have noticed that several methods of administering hormones are available. Learn more about them here.
Hot Flashes Treatment
Hot flashes sometimes referred to as hot flushes, are an uncomfortable, irritating condition to deal with. They can interfere with your life and make ordinary situations frustrating. Hot flashes in women are usually quick and often debilitating.
Night Sweats, Flushes & Andropause
Many think of hot flashes as a problem that only affects women. This isn't true. Although they occur more frequently in women, hot flashes in men are real and prevalent. Frequent hot flashes can change your life.
Integrative medicine places the patient at the center of a holistic approach to medical care. Patient's individual needs, risks, and goals are the main driving forces of any integrative therapy. Physicians practicing integrative medicine emphasize that treatment of every aspect of a person's health is crucial to the success of the healing process.
Fix Your Low-T Problem
Testosterone is the male hormone responsible for developing the testes during puberty. It contributes to male attributes such as facial hair and a deepened voice, while affecting a man's libido and even his mood.
Restore Your Sleep Balance
The hormone melatonin regulates your body's sleep cycle, also known as a circadian rhythm. The sleep cycle can be upset by changes in lifestyle and habits, but may also deteriorate with a melatonin deficiency. Melatonin hormone replacement therapy, a form of HRT, can correct your circadian rhythm. This can help you beat insomnia and return to normal, healthy sleep.
Building Strength with BHRT
As you get older, you lose muscle mass. Muscle loss, also called muscle atrophy, is the gradual reduction of muscle tissue. Some muscle loss occurs naturally due to age, but it may also indicate a more serious medical condition. If you're dealing with reduced strength, you need to get help.
Restore Hormonal Balance with a Healthy Diet
Hormones are the chemical messengers that regulate body function - when imbalanced, your hormones often cause unrest in your body leading to a variety of health complications. By adhering to a healthy, well-balanced diet, you can not only maintain proper hormone levels, but you can also reverse a current hormone imbalance affecting your overall health.
Women's Health and Wellness
A doctor who focuses on obstetrics and gynecology targets not only a woman's overall health, but he or she will be there to help you through your pregnancy and the birth of your child. These doctors are typically called obstetricians or gynecologists, or in abbreviated form, simply OB/GYNs.
Post-Surgical and Early Menopause
The cessation of the female monthly cycle, or menopause, typically occurs in women entering their late 40s or early 50s. Surgical menopause, which occurs after the removal of the ovaries, can occur in women of any age.
Health Before Pregnancy
Taking care of yourself during and after pregnancy goes without saying, but one aspect of the birth process that is often overlooked involves taking care of yourself before trying to get pregnant. Focusing on your health before you conceive will not only lead to a healthy pregnancy and healthy baby, but it might even improve your chances of getting pregnant in the first place.
Adrenal Fatigue & BHRT
Your body is filled with hormones, each serving a unique function that affects your overall wellness. These hormones, such as estrogen, testosterone and DHEA, are generated by precursor hormones. One of the most important of these precursor hormones is pregnenolone. Pregnenolone is a steroidal precursor hormone created primarily in your adrenal glands. Because of this, pregnenolone has a profound impact on your adrenal health, and can lead to adrenal stress or adrenal fatigue.
A Healthy Body and Mind
The best way to treat an illness is to prevent it from occurring. Preventative medicine is an important aspect of anti-aging medicine, where physicians focus on optimizing health, reversing the aging process, and preventing the body from going into a disease state.
Women's Health and this Vital Hormone
Hormone imbalance can cause a number of serious health issues. In particular, progesterone, which regulates many of your body's functions, can cause debilitating symptoms when levels are too low or too high. This is especially crucial for women, as progesterone plays a large part in controlling pregnancy and menopause.
Beat Low-T & Andropause
As men age, they notice a change in their physical and mental states. This change stems from the body's lowered testosterone production. Decreased libido, depression and many more side-effects can be caused by low testosterone. The symptoms of low testosterone are sometimes referred to as andropause. Andropause can seem like a dead end, a condition with no solution. Due to today's advanced medical technology, that isn't the case. Testosterone replacement therapy can provide relief.
Overall Wellness for Women
A well woman exam is a thorough evaluation of the pelvis and breasts, as well as any area related to a woman's overall wellness. After the initial consultation, the physician will perform a physical examination - including a breast and pelvic exam.
Understand these Crucial Hormones
Your endocrine system generates a multitude of hormones that serve crucial functions in your body. One of the most important is the thyroid-stimulating hormone (TSH). Created in the pituitary gland, TSH is a precursor hormone. This means TSH is essential for the thyroid gland to release its hormones thyroxin (T4) and triiodothyronine (T3). It is also essential that the body has enough free T3 and free T4 available.
Understand this Crucial Hormone
Your endocrine system generates a multitude of hormones that serve crucial functions in your body. One of the most important is the thyroid-stimulating hormone (TSH). Created in the pituitary gland, TSH is a precursor hormone. This means TSH is essential for the thyroid gland to release its hormones thyroxin (T4) and triiodothyronine (T3).