Dr. Dorothy Merritt, MD

Dr. Dorothy Merritt, MD

Internal Medicine  |  
Female  |  
59 y/o

Contact provider for availability

Dr. Dorothy Merritt, MD is an internal medicine doctor who practices in Dickinson, TX. She is 59 years old and has been practicing for 32 years.

St Elizabeth's Family Care

676 FM 517 Rd W

Dickinson, TX 77539
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Accepted insurance

  • Aetna
  • Beech Street (Multiplan)
  • Blue Cross Blue Shield
  • Coventry Health Care
  • HealthSmart - Interplan Health Group
  • Humana
  • MultiPlan
  • Three Rivers Provider Network
  • Tricare
  • UnitedHealthCare

Learn about Dr. Merritt

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Dr. Merritt's Experience

Dr. Merritt's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Internal Medicine
  • Board certified in Internal Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found

Care Philosophy

This content was provided by Dr. Merritt "I am an internist who practices primary care, but is passionate about getting to root causes of disease. I integrate preventative, nutritional, genomic and environmental medcine into day to day practice. In addition to primary care, I do IV EDTA Chelation , Nexalin Tx for mood and sleep disorders, Microcurrent for pain, Electrogastrograms for IBS, noninvasive MCGs for heart evals, Thermography and Esteck Body Scans. I love working with a challenging patient who wants to get well."


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  • Internal Medicine

Board Certifications

  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

Conditions Treated

  • ADHD and-or ADD
  • Abdominal Disorders
  • Abdominal Pain
  • Abnormal Thyroid
  • Achilles Tendinitis
  • Acne
  • Actinic Keratosis
  • Acute Bronchitis
  • Acute Deep Vein Thrombosis (DVT)
  • Acute Laryngitis
  • Acute Lower Respiratory Infection
  • Acute Pharyngitis
  • Acute Sinusitis
  • Acute Tonsillitis
  • Acute Upper Respiratory Infection
  • Administrative Physical
  • All Headaches (incl. Migraine)
  • All Types of Food Poisoning
  • Allergic Reaction
  • Allergic Rhinitis
  • Anal Disorders
  • Anal or Rectal Pain
  • Anemia
  • Ankle Sprain and Achilles Tendon Sprain or Rupture
  • Ankle Sprains and Strains
  • Anxiety
  • Arthritis
  • Arthritis of the Elbow
  • Asthma
  • Asymptomatic Post-Menopausal Status
  • Ataxia
  • Atherosclerosis
  • Athlete's Foot
  • Atrophic Vaginitis
  • Autonomic Disorders
  • Back Pain
  • Bedsores
  • Bell's Palsy
  • Benign Chronic Pain Syndrome
  • Bladder Diseases
  • Bladder Infection
  • Blepharitis
  • Blood Disorders
  • Blood in Urine (Hematuria)
  • Boil
  • Bone Disorders
  • Breast Diseases
  • Breast Pain
  • Bronchitis
  • Bronchospasm
  • Bunion
  • Burn Injuries
  • Bursitis
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Calcium Metabolism Disorders
  • Candidiasis of Skin and Nails
  • Canker Sore
  • Carpal Tunnel Syndrome
  • Celiac Disease
  • Cellulitis
  • Chest Pain
  • Chronic Fatigue Syndrome
  • Chronic Interstitial Cystitis
  • Chronic Neck Pain
  • Chronic Pain
  • Chronic Sinusitis
  • Cluster Headache
  • Coccygeal Pain
  • Cold Sore
  • Common Cold
  • Confusion
  • Congestive Heart Failure
  • Constipation
  • Coronary Artery Disease (CAD)
  • Cough
  • Cryptococcosis
  • Deep Vein Thrombosis (DVT)
  • Dehydration
  • Depressive Disorders
  • Dermatitis
  • Diabetes
  • Diabetes Mellitus, Secondary
  • Diabetes Type 1
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Polyneuropathy
  • Diarrhea
  • Difficulty With Walking
  • Diverticulosis, Intestinal
  • Dizziness
  • Dry Eyes
  • Dry Skin
  • Dysphagia
  • Dysthymia (Chronic Depression)
  • Dysthymia and Cyclothymia (Mood Disorders)
  • Ear Ache
  • Ear Disorders
  • Earwax Buildup
  • Elbow Injuries
  • Emphysema
  • Enlarged Prostate (BPH)
  • Enteritis
  • Erectile Dysfunction
  • Esophageal Diseases
  • Esophagitis
  • Essential Tremor
  • Fever
  • Fibromyalgia
  • Folliculitis
  • Food Poisoning
  • Foot Conditions
  • Fungal Infections
  • Fungal Nail Infection
  • Gait Abnormality
  • Ganglion Cyst
  • Gas-Bloat Syndrome
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Diseases
  • Gastroparesis
  • Genital Herpes
  • Genital Warts
  • Glaucoma
  • Gout
  • Hair Loss
  • Hammer Toe
  • Headache
  • Heart Disease
  • Heart Palpitations
  • Heartburn
  • Hemorrhoids
  • Herpes Simplex Infection
  • Herpes Zoster Without Complication
  • Hidradenitis
  • High Cholesterol
  • Hives
  • Hoarse Voice (Dysphonia)
  • Hypercalcemia
  • Hyperkalemia
  • Hyperlipidemia
  • Hypertension
  • Hypertensive Chronic Kidney Disease
  • Hypoglycemia
  • Hypokalemia
  • Hypotension
  • Hypotension (Excluding Maternal)
  • Hypothyroidism
  • Impetigo
  • Indigestion
  • Influenza (Flu)
  • Insomnia
  • Intertrigo
  • Iron Metabolism Disorders
  • Irritable Bowel Syndrome
  • Itchy Skin
  • Jock Itch
  • Joint Pain
  • Knee Disorders
  • Knee Sprain
  • Laryngitis
  • Larynx Conditions
  • Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
  • Lead Poisoning
  • Leg and Foot Ulcers
  • Limb Cramp
  • Limb Pain
  • Limb Swelling
  • Limb Swelling Caused by Fluid Overload
  • Lipid Disorders
  • Liver Damage from Alcohol
  • Low Back Pain
  • Low Blood Oxygen Level
  • Lyme Disease
  • Magnesium Metabolism Disorders
  • Malaise and Fatigue
  • Malnutrition
  • Menopausal and Postmenopausal Disorders
  • Menstrual Disorders (incl. Dysmenorrhea)
  • Menstrual Migraine
  • Migraine
  • Mineral Metabolism Disorders
  • Moles (Benign Skin Lesions)
  • Muscle Spasm
  • Muscle Weakness
  • Nasopharyngitis
  • Nausea
  • Neck Muscle Strain
  • Nighttime Urination (Nocturia)
  • Non-Alcoholic Fatty Liver Disease
  • Noninfectious Gastroenteritis and Colitis
  • Nosebleed
  • Obesity
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Hip
  • Osteoarthritis of Hip and Thigh
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteopenia
  • Osteoporosis
  • Otitis Media
  • Outer Ear Infection
  • Overactive Bladder
  • Overweight
  • Painful Urination (Dysuria)
  • Partial Lung Collapse
  • Patellofemoral Pain Syndrome or Knee Pain
  • Peptic Ulcer
  • Pericardial Disease
  • Perimenopause
  • Peripheral Nerve Disorders
  • Peripheral Vascular Disease (PAD, PVD)
  • Pharyngitis
  • Phlebitis and Thrombophlebitis
  • Pinkeye (Conjunctivitis)
  • Plantar Fasciitis
  • Plantar Wart
  • Pneumonia
  • Poison Ivy, Poison Oak, or Poison Sumac Poisoning
  • Pollen Allergy
  • Polymyalgia Rheumatica (PMR)
  • Polyneuropathy
  • Polyuria
  • Postherpetic Neuralgia
  • Postnasal Drip
  • Prostatitis
  • Pulmonary Disease
  • Radiculopathy (Not Due to Disc Displacement)
  • Rash
  • Raynaud's Disease
  • Reflux Esophagitis
  • Restless Leg Syndrome
  • Rib Fracture
  • Ringworm
  • Rosacea
  • Salivary Gland Stones and Inflammation
  • Sarcoidosis
  • Scabies
  • Sciatica (Not Due to Disc Displacement)
  • Seborrheic Dermatitis
  • Second-Degree Burns
  • Sexually Transmitted Diseases (STDs)
  • Shingles
  • Shortness of Breath
  • Shoulder Disorders
  • Shoulder Tendinitis and Tenosynovitis
  • Sickle Cell Disease
  • Sinusitis
  • Skin Infections
  • Sleep Apnea
  • Sleep Disorders
  • Sleep-Related Leg Cramp
  • Sore Throat
  • Spondylosis
  • Sprains and Strains (incl. Muscle Tear)
  • Stomach Diseases
  • Strep Throat
  • Stye
  • Symptomatic Menopause
  • Testicular Dysfunction
  • Thrombosis
  • Thyroid Disease
  • Tinea Versicolor
  • Tinnitus
  • Tobacco Use Disorder
  • Tonsillitis
  • Transient Ischemic Attack (TIA)
  • Tremor
  • Trigeminal Neuralgia
  • Ulcer
  • Urinary Disorders
  • Urinary Incontinence
  • Urinary Stones
  • Urinary Tract Infection (UTI)
  • Vaginitis and-or Vaginosis
  • Venous Insufficiency
  • Vertigo
  • Viral Enteritis
  • Viral Infection
  • Vitamin D Deficiency
  • Warts
  • Weight Loss
  • Wheezing
  • Whooping Cough
  • Yeast Infections


Read More


  • Abscess or Cyst Drainage or Aspiration
  • Abscess or Fluid Incision and Drainage
  • Anemia and Iron Deficiency Screening
  • Arterial Blood Gas Test (ABG)
  • Chelation Therapy
  • Cholesterol Screening
  • Diabetes Counseling
  • Diabetes Screening
  • Electrocardiogram (EKG)
  • Electrogastrogram
  • Fecal Occult Blood Test for Colorectal Cancer
  • IV Therapy
  • Liver Function Test
  • Osteoporosis Screening
  • Pap Smear
  • Physical Examination
  • Pregnancy Test
  • Pulmonary Function Test
  • Rapid Flu Test
  • Smoking Cessation Counseling
  • Thyroid Screening
  • Wellness Examination

Background Check

0 Malpractice Claims

No malpractice history found for Texas.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • University Of Kansas / Main Campus
    Undergraduate School | Graduated 1979
  • Baylor University
    Medical School | Graduated 1985
  • Baylor Affil Hosps
    Internship Hospital | Completed 1985
  • Baylor University
    Residency Hospital | Completed 1987

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Merritt has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. Merritt does not have any memberships or affiliations listed. If you are Dr. Merritt and would like to add memberships or affiliations, please update your profile.

Dr. Merritt's Reviews

Likelihood of recommending Dr. Merritt to family and friends
based on 40 total reviews (16 with comments)
Dr. Merritt's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    16 to 30 minutes
Patient Comments (16)
Spring, TX |
Bad Doctor, BAD CLINIC! Lots of unsatisfied customers.
in San Leon, TX |
First visit very informative. Nurse taking info and PA were both nice and didn't make me feel rushed. Good experience.
in Baytown |
She explain all test and how the body works and she will use alternative ways to treat your illness . Dr. Merritt also treat illness with CHELATION THERAPY. Its a wonderful THERAPY .
in Galveston, Texas |
Dr. Merritt is extremely aware of how drugs act and relate to each individual patient. She has holistic knowledge and stays up on what is new and inventive. She is upbeat and observant of the individual patient and doesn't treat you like a number. The physican's assistant ( or student PA) takes the history and does the 1st inventory. She moved in January 2016 and I am not thrilled with the lack of patient priority from the employees and management at her new office. I understand one was new.
in League City, TX |
This woman is an absolute criminal. There is no way else to put it. My wife has been taking Adderall for several years now. She went in for a routine 90 day prescription. Merritt said that they had a new policy and that she was required to make all of her Adderall patients pee into a cup. We just received a bill in the mail for a $17k pee test! Yes, you read that right! Seventeen thousand dollars! She insists the charge is legit! We will never pay this bill! I will fight this bill to my death!
in Texas City, TX |
I am not exactly a layman. I had 9 years experience as a registered Medical Technologist and am pretty familiar with some of the ins and out. Dr. Merritt is the best physician I have ever been around. She is straight to the point and extremely knowlegable and there is nothing else I can say except she is absolutely great. Anyone not using her is really missing the boat.
Pasadena, TX |
I heard she was a great diagnostician and no one could figure out why I had migraines. I brought blood test results with me. Dr. Merritt came in, glanced at the blood work and told me that one test was out of range. She reached into a cabinet and literally threw a box of medicine at me. She said, Take these, you'll feel better and walked out. Didn't listen to my heart, look in my ears, nothing. The meds didn't work and I wouldn't go back, even if they did. Worst doc I've ever been to.
in Baytown, TX |
Experience was amazing. As a new patient Dr. Merrit and staff treated me with the upmost respect. suffering from a lot of anxiety & depression, I never felt judged or as if I was a bother. Dr. Merrit using not only traditional medicine thinks outside the box, and, is not afraid to do so! Thanks for excepting me as your new patient.. I really appreciate it!
in League City, TX |
Dr. Merritt is the BEST physician with whom I've ever been a patient! I so appreciate her down to earth approach to health questions & willingness to let patients be a part of determining best treatment, tailored to the individual. She is a very comforting, non judgmental caregiver who stays current in her research; knowledgeable, experienced & confident but refreshingly humble enough to remain open to new data & discussion. If she wasn't my doctor this is someone I'd certainly want as a friend.
in Pearland, TX |
I've been going to Dr. Merritt for many years. She's been the best doctor for my thyroid issues. (I tried two others before her that I hated.) She's down to earth and holistic; not a pill pusher. I am not sure why she moved to St. Elizabeth. Like the other reviews, I have not been that pleased with the staff there. One nurse who was taking my blood pressure would not even look at me, so I made sure to say, Hi, how are you doing today? and she spoke to me. I am not going to give up on Dr M yet.
in League City, TX |
I am a long time pt of Dr Merritt. The new office has very RUDE staff. They want their $ up front even from established pt's. Office Visit is double the price now. They add on extra procedures and do not inform you. I was told I was the only one that had a problem with the new staff, until I saw this site. Perhaps this is a blessing in disguise as I had long term black mold exposure with classic toxicity symptoms and received a multitude of antidepressants for my treatment... for 8 years...
in League City, Tx |
I cannot express enough the highest quality of treatment & care Dr. Merritt gives to everyone of her patients, she will not give up until finding the root of your illness or the cause thereof! I have been a patient of hers for close to 10 years & I am worried about my continued care since she left her Texas City Practice! The new office where she is now practicing, Accepts Medicare but refuses to accept all types of Medicaid incldg(QMB) such an in justice to my quality care w/her! :(
in Friendswood, TX |
New staff is rude and unprofessional. It is impossible to get a nurse on the phone or to get a nurse to return a call. It is unfortunate that a great doctor has such horrible staff working for her. After many years I will be looking for a new doctor.
in Lake Jackson Tx 77566 |
Dr Merritt takes the time to explain what she feels is the best treatment for what you came in for. She also explains what she thinks is causing the ailment. She does not try to rush you out of her office and always asks if you have any questions. In my case she had me go to her assistant, Greg. He is equally thorough and explains everything he is doing to help you get where you need to be.The 2 of them I would and do highly recommend to my friends. It was a friend of mine that recommended them.
Dr Merritt is a fantastic Doctor. The new office is too crowded and loud, the staff too many, unempathetic and rude. There is NO sign that says cash and credit card only. Well my credit card is on order due to the new card chip defect and I don't normally carry large amounts of cash to pay for visit. I had a check and was declined a visit.
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Not Accepting New Patients
Dr. Merritt accepts 10 insurance carriers
  • Aetna
    Aetna HMO
    Choice Plus POS II
  • Beech Street (Multiplan)
  • Blue Cross Blue Shield
    Blue Card PPO
  • Coventry Health Care
  • HealthSmart - Interplan Health Group
    Interplan Health Group
  • Humana
    Choice Care PPO
  • MultiPlan
    MultiPlan PPO
    PHCS Network PPO
  • Three Rivers Provider Network
  • Tricare
  • UnitedHealthCare
    Choice Plus POS
    Options PPO

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Hospitals where Dr. Merritt has admitting privileges

Mainland Medical Center
6801 Emmett F Lowry Expy
Texas City, TX 77591
View Hospital Profile
Clear Lake Regional Medical Center
500 W Medical Center Blvd
Webster, TX 77598
View Hospital Profile