Dr. Dennis Tang, MD

Dr. Dennis Tang Internal Medicine Physician

Dr. Dennis Tang is a board-certified internal medicine physician providing preventive, diagnostic, and continuing healthcare for adults.

His clinical work includes routine physical examinations, treatment for common illnesses, diabetes care, blood pressure management, cholesterol treatment, medication monitoring, and preventive health screening.

Dr. Tang has a particular interest in diabetes and hypertension. These conditions often develop gradually and may cause few noticeable symptoms during their early stages. Regular monitoring can help patients understand their risks and address concerning changes before complications become more difficult to manage.

Patients comparing adult primary care physicians can also read about Dr. Bich G. Nguyen’s internal medicine care.

Doctor Information

Name: Dr. Dennis Tang, MD
Specialty: Internal Medicine
Board Certification: American Board of Internal Medicine
Medical School: University of Texas Medical School at Houston
Medical Degree Completed: 1993
Residency: Internal Medicine, University of Texas Medical Branch in Galveston
Residency Completed: 1996
Professional Membership: Associate of the American College of Physicians
Practice: Clear Lake Medical Group
Primary Location: Webster, Texas
Additional Practice Area: Texas City, Texas
Hospital Affiliations: HCA Houston Healthcare Clear Lake and Houston Methodist Clear Lake Hospital
Languages Spoken: English, with some provider directories also listing Spanish
NPI Number: 1154315349
Telemedicine: Available for suitable appointments
Online Booking: Available
Accepting New Patients: Yes, according to current provider listings

About Dr. Dennis Tang

Dr. Tang earned his medical degree from the University of Texas Medical School at Houston in 1993. The school is now known as McGovern Medical School at UTHealth Houston.

He completed internal medicine residency training at the University of Texas Medical Branch in Galveston in 1996. His professional biography also notes experience working in the emergency room during his postgraduate training.

This background prepared him to assess both sudden medical concerns and long-term adult health conditions. Internal medicine physicians are trained to consider how symptoms involving different organs and body systems may be connected.

Dr. Tang began practising medicine in the mid-1990s. His care philosophy focuses on health education for both disease prevention and treatment.

During an appointment, he may review symptoms, medical history, family history, medicines, previous test results, and daily health habits before recommending a treatment plan.

Internal Medicine Services

Dr. Tang may evaluate and manage adult health concerns such as:

• High blood pressure
• Type 2 diabetes
• Prediabetes
• High cholesterol
• Thyroid disorders
• Respiratory infections
• Asthma and allergies
• Digestive symptoms
• Kidney-function concerns
• Urinary symptoms
• Anemia
• Headaches
• Joint and muscle discomfort
• Unexplained tiredness
• Weight-related medical risks
• Multiple chronic conditions

Some concerns can be diagnosed during an office examination. Others may require laboratory testing, urine testing, imaging, follow-up monitoring, or consultation with a specialist.

Preventive Adult Healthcare

Preventive care helps identify medical risks before they cause serious symptoms or complications.

Dr. Tang may review:

• Blood pressure
• Blood glucose
• Cholesterol
• Kidney function
• Vaccination history
• Family medical history
• Tobacco exposure
• Nutrition
• Physical activity
• Weight changes
• Prescription medicines
• Previous screening results

Preventive recommendations depend on the patient’s age, personal medical history, family history, earlier findings, and current symptoms.

A routine appointment also gives patients an opportunity to discuss gradual changes in sleep, appetite, energy, digestion, concentration, weight, or physical ability.

Routine Physical Examinations

A routine physical examination provides a broad review of the patient’s health and preventive needs.

The appointment may include:

• Updating the medical history
• Reviewing prescriptions and supplements
• Measuring blood pressure
• Examining heart and lung function
• Reviewing weight changes
• Discussing current symptoms
• Assessing earlier laboratory results
• Reviewing vaccination needs
• Recommending appropriate screenings
• Discussing practical health goals

Not every patient requires the same laboratory tests each year. Testing can be selected according to age, symptoms, medication, existing diagnoses, and individual health risks.

Patients should mention recent emergency visits, hospital admissions, specialist appointments, and changes made to their treatment.

High Blood Pressure Management

High blood pressure is one of Dr. Tang’s stated areas of clinical interest.

It may develop without causing obvious symptoms. When it remains uncontrolled, it can gradually affect the heart, kidneys, brain, eyes, and blood vessels.

Dr. Tang may manage hypertension through:

• Office blood pressure measurements
• Review of home readings
• Medication selection
• Dosage adjustments
• Kidney-function testing
• Cardiovascular risk assessment
• Nutrition discussions
• Physical activity guidance
• Monitoring for medication side effects

Patients who check their blood pressure at home should record the date, time, and result. Measuring at approximately the same times each day may make trends easier to recognise.

It can also help to note whether headache, dizziness, weakness, chest discomfort, or another symptom occurred around the same time.

Resistant or Difficult-to-Control Hypertension

Some patients continue to have elevated readings despite taking blood pressure medicine.

Possible reasons may include:

• Missed or inconsistent doses
• Incorrect home-monitoring technique
• Medication interactions
• High sodium intake
• Sleep-related breathing problems
• Kidney disease
• Thyroid or hormonal conditions
• Pain or stress
• Use of certain non-prescription products

Dr. Tang may review the complete treatment plan before adding or changing medicine.

Patients should bring all home readings and a complete list of prescription medicines, pain relievers, cold remedies, vitamins, and supplements.

Diabetes and Prediabetes Care

Diabetes is another stated area of interest within Dr. Tang’s internal medicine practice.

Prediabetes means blood sugar is above the expected range but has not reached the level used to diagnose diabetes. Early management may lower the likelihood of progression for some patients.

Dr. Tang may provide:

• Fasting blood glucose testing
• A1C monitoring
• Medication management
• Nutrition guidance
• Physical activity planning
• Kidney-function monitoring
• Foot and nerve assessment
• Diabetic eye examination referrals
• Cardiovascular risk management
• Review of home glucose readings

Type 2 diabetes treatment may include changes to daily habits, oral medication, injectable treatment, insulin, or a combination of approaches.

The treatment plan should consider glucose patterns, kidney health, cardiovascular risks, medication tolerance, and the patient’s normal routine.

Patients with more complex blood sugar concerns may also need support from an endocrinologist such as Dr. Charlie C. Chang.

Home Blood Sugar Monitoring

Some patients are asked to check blood glucose at home.

A useful record may include:

• Date and time
• Glucose result
• Whether the reading was before or after a meal
• Food eaten
• Medicine or insulin used
• Physical activity
• Symptoms of high or low blood sugar

This information can help Dr. Tang determine whether treatment is working consistently throughout the day.

Patients should understand how often testing is needed and what results should be reported to the practice.

Cholesterol Management

High levels of certain blood fats can contribute to plaque developing inside the arteries. This may increase the long-term risk of heart attack, stroke, and circulation problems.

Dr. Tang may assess:

• Total cholesterol
• LDL cholesterol
• HDL cholesterol
• Triglycerides
• Blood pressure
• Blood glucose
• Tobacco exposure
• Family cardiovascular history
• Age
• Previous heart or blood-vessel disease

Treatment may include practical nutrition changes, physical activity, prescription medication, or improved control of diabetes, blood pressure, and thyroid disease.

Recommendations are based on the patient’s complete cardiovascular risk rather than one laboratory result alone.

Cardiovascular Risk Assessment

Internal medicine physicians play an important role in identifying factors associated with heart and blood-vessel disease.

Dr. Tang may evaluate:

• High blood pressure
• High cholesterol
• Diabetes
• Family history of early heart disease
• Tobacco exposure
• Kidney disease
• Reduced activity
• Weight-related medical risks
• Medication use
• Previous cardiovascular conditions

Care may involve laboratory monitoring, medication, practical lifestyle changes, heart testing, or referral to a cardiologist.

Persistent chest discomfort, unexplained shortness of breath, fainting, or a major reduction in exercise tolerance should receive prompt medical assessment.

Thyroid Concerns

The thyroid gland produces hormones that influence energy, metabolism, digestion, heart rate, and temperature regulation.

Possible symptoms of a thyroid condition include:

• Unexplained tiredness
• Weight changes
• Sensitivity to heat or cold
• Changes in heart rate
• Constipation
• Tremor
• Dry skin
• Hair changes
• Muscle weakness
• Difficulty concentrating

These symptoms can have many possible causes. Blood tests are generally needed before a thyroid disorder can be confirmed.

Dr. Tang may provide initial testing and treatment for common thyroid conditions. An endocrinology referral may be recommended when the diagnosis or treatment is more complex.

Respiratory and Allergy Care

Coughing, congestion, wheezing, and breathing discomfort may be caused by infection, asthma, allergies, environmental exposure, medicine, or another medical condition.

Dr. Tang may review:

• When symptoms began
• Whether fever is present
• Possible allergy triggers
• Previous asthma history
• Inhaler use
• Nighttime coughing
• Exercise-related symptoms
• Tobacco exposure
• Response to earlier treatment

Testing may include oxygen measurement, lung examination, infection testing, chest imaging, or breathing studies.

Treatment depends on the suspected cause and severity of symptoms.

Acute Illness Care

Dr. Tang may evaluate illnesses that begin suddenly, including:

• Colds
• Influenza-like illness
• Cough
• Sore throat
• Sinus symptoms
• Fever
• Ear discomfort
• Digestive illness
• Urinary symptoms
• Minor infections
• Headaches
• Unexpected tiredness

An appointment may include a physical examination and selected testing.

Treatment depends on whether symptoms are caused by a virus, bacterial infection, allergy, inflammation, medication, or another condition.

Antibiotics do not treat viral infections and are normally considered only when findings support a bacterial illness likely to benefit from them.

Digestive Health

An internal medicine physician can provide the first evaluation for many digestive concerns.

Dr. Tang may assess symptoms such as:

• Heartburn
• Acid reflux
• Abdominal discomfort
• Nausea
• Bloating
• Constipation
• Diarrhea
• Changes in bowel habits
• Changes in appetite
• Unexplained weight changes

An evaluation may involve medication review, blood tests, stool studies, imaging, or referral to a gastroenterologist.

Persistent symptoms should be assessed rather than repeatedly treated without identifying the underlying cause.

Kidney Health Monitoring

High blood pressure, diabetes, dehydration, medication, and other conditions can gradually affect kidney function.

Dr. Tang may monitor kidney health through:

• Blood testing
• Urine testing
• Urine-protein assessment
• Blood pressure management
• Diabetes treatment
• Medication review
• Evaluation of swelling
• Review of changes in urination

Early kidney disease may cause few noticeable symptoms. Routine testing can therefore be important for patients with increased risk.

A kidney specialist may become involved when testing shows significant or continuing changes.

Anemia Evaluation

Anemia occurs when the blood does not contain enough healthy red blood cells or haemoglobin.

Possible symptoms include:

• Tiredness
• Weakness
• Dizziness
• Headaches
• Shortness of breath
• Pale skin
• Rapid heartbeat
• Reduced exercise tolerance

Possible causes include iron deficiency, vitamin deficiency, blood loss, kidney disease, inflammation, medication, or a blood disorder.

Dr. Tang may order laboratory tests to identify the type and likely cause of anemia.

Treatment depends on the diagnosis and may include supplementation, medication changes, investigation of blood loss, or specialist referral.

Joint and Muscle Symptoms

Joint stiffness, back discomfort, muscle pain, and reduced movement may occur because of injury, arthritis, inflammation, repetitive activity, or nerve irritation.

Dr. Tang may recommend:

• Temporary activity changes
• Medication
• Home exercises
• Physical therapy
• X-rays or other imaging
• Laboratory testing
• Specialist referral

Treatment depends on whether the symptoms involve a joint, bone, muscle, tendon, ligament, nerve, or inflammatory condition.

Patients should explain how the symptoms affect work, walking, sleep, exercise, or everyday tasks.

Medication Management

Adults with several diagnoses may receive prescriptions from different healthcare professionals.

A medication review can help identify:

• Duplicate prescriptions
• Drug interactions
• Side effects
• Incorrect doses
• Medicines that may no longer be needed
• Conflicts with non-prescription products
• Supplements affecting prescribed treatment
• Difficulty following the dosing schedule

Patients should bring an updated list of prescriptions, over-the-counter medicines, vitamins, and supplements.

Medicine should not be stopped or changed without guidance from the prescribing healthcare professional.

Vaccinations and Screening

Vaccination and screening needs change according to age, medical history, work, travel, and existing health conditions.

Dr. Tang may review:

• Routine adult vaccinations
• Seasonal vaccination needs
• Diabetes screening
• Cholesterol testing
• Blood pressure screening
• Colorectal cancer screening
• Bone-health assessment
• Other age-appropriate preventive services

Patients should bring available vaccination and screening records.

Earlier or more frequent screening may be appropriate for patients with previous abnormal results or a strong family history of disease.

Colorectal Cancer Screening

Colorectal cancer screening can identify precancerous growths or cancer before symptoms appear.

Screening options may include stool-based testing or colonoscopy, depending on the patient’s age, health risks, family history, and previous results.

Dr. Tang may help patients understand:

• When screening may be appropriate
• Which testing options are available
• How often testing may be needed
• Whether family history changes the schedule
• When gastroenterology referral is necessary

Blood in the stool, unexplained anemia, major bowel changes, or unexplained weight loss may require diagnostic evaluation rather than routine screening alone.

Chronic Condition Management

Long-term conditions require continuing monitoring because symptoms, laboratory results, and medication needs can change.

Dr. Tang may help patients manage:

• High blood pressure
• Type 2 diabetes
• High cholesterol
• Thyroid disease
• Asthma
• Arthritis
• Kidney concerns
• Digestive conditions
• Cardiovascular risk factors
• Multiple diagnoses at the same time

Follow-up appointments allow him to review laboratory results, treatment response, side effects, and changes in everyday function.

Patients should mention missed doses, new symptoms, and treatment provided by another healthcare professional.

Patients comparing established adult physicians may also review Dr. Zachary I. Smith’s internal medicine profile.

Telemedicine Appointments

Dr. Tang’s current practice profile lists telemedicine as available for suitable medical needs.

A virtual appointment may be useful for:

• Medication follow-up
• Review of laboratory results
• Stable chronic conditions
• Preventive care planning
• Discussion of minor symptoms
• Follow-up after earlier treatment

Some concerns still require an office examination, laboratory testing, imaging, or urgent in-person assessment.

The practice can determine whether a virtual or office appointment is more appropriate.

Coordinated Medical Care

Patients with several medical conditions may receive treatment from multiple specialists.

Dr. Tang may coordinate with:

• Cardiologists
• Endocrinologists
• Gastroenterologists
• Kidney specialists
• Neurologists
• Orthopedic physicians
• Urologists
• Surgeons
• Physical therapists
• Other healthcare professionals

Coordination can help reduce repeated testing, identify medication conflicts, and keep treatment recommendations consistent.

An internist can also monitor the patient’s general health between specialist appointments.

Preparing for an Appointment

Patients can prepare by bringing:

• A current medication list
• Recent laboratory results
• Imaging reports
• Hospital discharge records
• Home blood pressure readings
• Blood glucose records
• Vaccination information
• A list of medication allergies
• Family medical history
• Questions about testing or treatment

It is helpful to explain when symptoms began, how often they occur, and what makes them better or worse.

Patients should also mention changes in sleep, appetite, weight, energy, physical activity, or everyday function.

Patient-Centered Internal Medicine

Dr. Tang provides adult medical care based on each patient’s symptoms, health history, medication, preventive needs, and long-term goals.

His services may include routine physical examinations, diabetes treatment, hypertension management, preventive screening, acute illness care, medication monitoring, telemedicine, diagnostic testing, and coordination with specialists.

Patients should confirm current appointment availability, accepted insurance plans, practice locations, telemedicine eligibility, and referral requirements directly with Clear Lake Medical Group.