Dr. David Cos, MD

Dr. David Cos, MD

Internal Medicine  |  
Male  |  
Age 52
Insurances AcceptedSave
Dr. David Cos, MD is an internal medicine doctor who practices in The Woodlands, TX. He is 52 years old and has been practicing for 25 years. Dr. Cos is affiliated with St. Luke's Lakeside Hospital and Memorial Hermann The Woodlands Hospital.

17450 St Lukes Way Ste 290

The Woodlands, TX 77384

Contact Information

(281) 296-8500

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Texas
  • Cigna
  • First Health (Coventry Health Care)
  • Humana
  • Humana Health Plan of Texas
  • MultiPlan

*Please verify this information when scheduling an appointment.

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Dr. Cos' Experience

Dr. Cos' 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


  • Internal Medicine

Board Certifications

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

Conditions Treated

  • ADHD and-or ADD
  • Abdominal Disorders
  • Abdominal Pain
  • Acidosis
  • Acute Bronchitis
  • Acute Deep Vein Thrombosis (DVT)
  • Acute Pharyngitis
  • Acute Postoperative Pain
  • Acute Sinusitis
  • Acute Upper Respiratory Infection
  • Acute Venous Embolism Thrombosis
  • Alkalosis
  • All Headaches (incl. Migraine)
  • Allergic Reaction
  • Allergic Rhinitis
  • Anemia
  • Anxiety
  • Arthritis
  • Arthritis of the Elbow
  • Asthma
  • Asymptomatic Post-Menopausal Status
  • Ataxia
  • Atherosclerosis
  • Atrophic Vaginitis
  • Autonomic Disorders
  • Back Pain
  • Bedsores
  • Benign Chronic Pain Syndrome
  • Bladder Diseases
  • Bladder Infection
  • Blood Disorders
  • Blood in Urine (Hematuria)
  • Bone Disorders
  • Breast Diseases
  • Bronchiectasis
  • Bronchitis
  • Bruise of Face, Scalp, or Neck
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Calcium Metabolism Disorders
  • Candidiasis of Skin and Nails
  • Carpal Tunnel Syndrome
  • Cellulitis
  • Chest Pain
  • Chronic Deep Vein Thrombosis (DVT)
  • Chronic Neck Pain
  • Chronic Pain
  • Chronic Sinusitis
  • Chronic Venous Embolism Thrombosis
  • Cluster Headache
  • Coccygeal Pain
  • Cold Sore
  • Confusion
  • Constipation
  • Coronary Artery Disease (CAD)
  • Cough
  • Deep Vein Thrombosis (DVT)
  • Dehydration
  • Dermatitis
  • Dermatitis Due to Drugs
  • Dermatitis Due to Substances Taken Internally
  • Diabetes Mellitus, Secondary
  • Diabetes Type 1
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Polyneuropathy
  • Diarrhea
  • Difficulty With Walking
  • Diverticulosis, Intestinal
  • Dizziness
  • 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
  • Fever
  • Fibromyalgia
  • Folliculitis
  • Foot Conditions
  • Fungal Infections
  • Fungal Nail Infection
  • Gait Abnormality
  • Gas-Bloat Syndrome
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Diseases
  • Gastroparesis
  • Glaucoma
  • Gout
  • Hair Loss
  • Headache
  • Heart Disease
  • Heart Palpitations
  • Heartburn
  • Hemorrhoids
  • Herpes Simplex Infection
  • Herpes Zoster Without Complication
  • Hip Pointer Injuries
  • Hives
  • Hypercalcemia
  • Hyperkalemia
  • Hyperlipidemia
  • Hypertension
  • Hypertensive Chronic Kidney Disease
  • Hypoglycemia
  • Hypokalemia
  • Hypotension
  • Hypotension (Excluding Maternal)
  • Hypothyroidism
  • Indigestion
  • Influenza (Flu)
  • Insomnia
  • Irritable Bowel Syndrome
  • Jock Itch
  • Joint Pain
  • Kidney Infection
  • Kidney Infection, Acute
  • Knee Disorders
  • Knee Sprain
  • 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
  • Magnesium Metabolism Disorders
  • Malaise and Fatigue
  • Malnutrition
  • Mastodynia
  • Menopausal and Postmenopausal Disorders
  • Migraine
  • Mineral Metabolism Disorders
  • Muscle Spasm
  • Muscle Weakness
  • Mycobacterial Lung Infection
  • Nail and Nail Bed Infection
  • Nausea
  • Neck Strain (incl. Whiplash Injury)
  • Neurogenic Bladder
  • 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
  • Osteoarthritis of Spine
  • Osteopenia
  • Osteoporosis
  • Otitis Media
  • Outer Ear Infection
  • Overactive Bladder
  • Overweight
  • Painful Urination (Dysuria)
  • Partial Lung Collapse
  • Patellofemoral Pain Syndrome or Knee Pain
  • Pericardial Disease
  • Perimenopause
  • Peripheral Autonomic Neuropathy
  • Peripheral Nerve Disorders
  • Peripheral Vascular Disease (PAD, PVD)
  • Pharyngitis
  • Phlebitis and Thrombophlebitis
  • Phosphorus Metabolism Disorders
  • Pinkeye (Conjunctivitis)
  • Pneumonia
  • Poison Ivy, Poison Oak, or Poison Sumac Poisoning
  • Polymyalgia Rheumatica (PMR)
  • Polyneuropathy
  • Postnasal Drip
  • Prostatitis
  • Pulmonary Disease
  • Radiculopathy (Not Due to Disc Displacement)
  • Rash
  • Raynaud's Disease
  • Reflux Esophagitis
  • Restless Leg Syndrome
  • Rib Fracture
  • Ringworm
  • Runner's Knee
  • Sciatica (Not Due to Disc Displacement)
  • Seborrheic Dermatitis
  • Secondary Hypertension
  • Sepsis
  • Shingles
  • Shortness of Breath
  • Shoulder Disorders
  • Sinusitis
  • Skin Infections
  • Sleep Apnea
  • Sleep Disorders
  • Sleep-Related Leg Cramp
  • Sprains and Strains (incl. Muscle Tear)
  • Stomach Diseases
  • Symptomatic Menopause
  • Testicular Dysfunction
  • Throat Pain
  • Thrombosis
  • Thyroid Disease
  • Tinnitus
  • Tobacco Use Disorder
  • Torticollis
  • Transient Ischemic Attack (TIA)
  • Tremor
  • Trigeminal Neuralgia
  • Ulcer
  • Urinary Disorders
  • Urinary Incontinence
  • Urinary Stones
  • Urinary Tract Infection (UTI)
  • Vaginitis and-or Vaginosis
  • Venous Embolism and Thrombosis
  • Venous Insufficiency
  • Vertigo
  • Viral Enteritis
  • Vitamin D Deficiency
  • Wheezing
  • 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)
  • Cardiovascular Stress Test
  • Care Coordination for Complex Conditions and Procedures
  • Cholesterol Screening
  • Dementia or Depression Screening
  • Diabetes Counseling
  • Diabetes Screening
  • Electrocardiogram (EKG)
  • Fecal Occult Blood Test for Colorectal Cancer
  • HIV Screening
  • Hepatitis B Virus Screening
  • Hepatitis Screening
  • Immunization Administration
  • Liver Function Test
  • Osteoporosis Screening
  • Prostate Cancer Screening
  • Pulmonary Function Test
  • Rapid Flu Test
  • Sexually Transmitted Infections Screening
  • 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 Texas Southwestern Medical Center At Dallas
    Medical School | Graduated 1992
  • Baylor College Of Med
    Residency Hospital | Completed 1995

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Cos has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

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

Dr. Cos' Reviews

Likelihood of recommending Dr. Cos to family and friends
based on 62 total reviews (15 with comments)
Dr. Cos' 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 (15)
in The Woodlands |
Dr. Cos is knowledgeable, professional, kind and genuinely interested in his patients. In my experiences, he has been exceptional with diagnosing medical issues. If a specialist is needed, he not only directs me to someone he would go to himself, but his staff follows through with providing all the background paperwork for a smooth introduction to the specialist's office.
The Woodlands, TX |
Dr. Cos really did not address any issues I had, other than giving me referrals. Then I never hear back on my lab work results- I call to speak to his assistant who is very brisk and rude, tells me they don't have the time to call and only send in the mail. As I proceeded to ask questions about my lab work she doesn't address my concerns and just proceeds to get even more rude. Definitely will not be returning to this medical group.
Conroe, TX |
This doctor does not care about his patients and will do the absolute minimum that is required of him. Very poor service. Avoid.
spring, tx |
Caring and efficient.
Spring, TX |
Dr Cos and his PAs have been my PCPs for over 12 years now. I have a complex medical history and his PA Melissa always handles my issues with great skill and professionalism. It is usually easy to get a timely appointment. I do not understand the negative reviews I am seeing. Dr. Cos and his staff have always been kind and very skilled in my care and the care of both of my elderly parents. I always receive my labwork and other results in a very timely manner and have never had any billing issues
in Montgomery |
Just referred my neighbor
Houston, TX |
I was removed as a patient and will told that I had been sent a certified letter to that extent. I never received the subject letter and when asked why I was removed I was told that information was not to be conveyed. The individual that I talked to was extremely unprofessional, talked over me, and eventually hung up on me. I had gone to Dr. Cos three times and actually was satisfied with he and his assistant. The business individual on the other hand would have drove me away regardless.
in Spring, TX |
I have not been pleased with the office staff at Dr. Cos office in the past. Today everyone was very friendly and helpful. I hope this trend continues because he is a good doctor, even though he's too busy to get an appt with. Melissa is nice though and I saw Sara today who is sweet. She did a great job.
in Conroe, TX |
Have been seeing this doctor for over 5 years. In the past 2 years, I have NEVER actually seen Dr. Cos. His Physician Assistants are not very well trained. HIS WHOLE OFFICE STAFF IS RUDE AND A JOKE!!!! AND THEY HAVE A VERY HIGH TURNOVER RATE. THE OFFICE MANAGER NEEDS TO BE FIRED! NOT FRIENDLY AND NEVER RETURNS URGENT PHONE CALLS. The most awful part of his practice is their answering service! Extremely rude, not patient friendly, and does not get urgent messages to whatever doctor is on call.
in Conroe, TX |
They overcharged my insurance company and then bill the overage to me. Worked to resolve issued through the insurance company; the office management doesn't care. You will pay the overage. I've liked the medical practice, especially the PAs but the billing department is vile. It's just crooked to over bill.
in The Woodlands, TX |
Dr. Cos is a good doctor. However his office staff is the complete opposite. Over the past year his office staff, office manager, anyone who answers the phone, and a lot of the nurses are now completely rude and very unprofessional. They do not return calls, you have to call them back - and even then they are rude. If they are too busy to answer the phones, it now goes over to an answering service who says they will get your message to the office and never do. Doctors are good. Office is not!
in Montgomery Tx |
I found my experience with Dr. Cos excellent. I met him on 1 st visit and after that friendly and experienced PA's I spend most of my time overseas, and there has been several times I needed a appointment with only a few days notice, they always obliged. Jack E. Calcote Jakarta Indonesia
Spring, TX |
I had high blood pressure 170/90, The office staff didn't want to talk to me because I didn't have an appointment. Finally one nurse was nice and took my blood pressure it was over 180. They told me in a very rude manner to go walking to the emergency room at St Luke's. When my husband asked Dr Coss about this situation, he responded he agreed with his staff behavior, he has a business that works from 8 to 5 and that is the way he likes it.
in The Woodlands, TX |
Close to malpractice with the poor level of response from the Dr and his office staff. First your likelihood of getting into see Dr. Cos any time soon is low. So you end up with a PA which might be fine if there would any good. They are not. They are not responsive. The office does not return phone calls. It does not matter if you are in serious pain after a fall. Forget any return call. Several days to even have pain medications prescriptions even called in. Too busy!!!
Spring, TX |
office staff has become too regimented and depersonalized. Pt.s are managed not treated according to their individual needs. This has only become a problem over the past year when the office staff was greatly increased in number. So sad because Dr. Cos is an excellent doctor. We will be looking for another doctor who isn't so busy.
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Now Accepting New Patients
Dr. Cos accepts 8 insurance carriers
  • Aetna
    Aetna HMO
  • Blue Cross Blue Shield
    Blue Card PPO
  • Blue Cross Blue Shield of Texas
    Blue Advantage HMO
    Blue Choice
  • Cigna
    Cigna HMO
    Cigna PPO
    Open Access Plus
  • First Health (Coventry Health Care)
    First Health (Coventry Health Care) PPO
  • Humana
    Choice Care PPO
    Preferred PPO
  • Humana Health Plan of Texas
    Houston Area HMO-Standard
  • MultiPlan
    MultiPlan PPO
    PHCS Network PPO

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Cos has admitting privileges

Memorial Hermann The Woodlands Hospital
9250 Pinecroft Dr
Shenandoah, TX 77380
View Hospital Profile
St. Luke's Lakeside Hospital
17400 St Lukes Way
The Woodlands, TX 77384
View Hospital Profile

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