Dr. David J. Tweardy
- Gender: Male
- Experience: 43 years
- Sole propriator: No
- NPI: 1720168065
Dr. David J. Tweardy MD
Infectious Disease Specialist
He is located at 1515 Holcombe Boulevard in Houston, TX 77030. Can help patients with the following: Cholecystitis, Constipation, Gastroesophageal Reflux Disease (GERD), Guinea Worm Disease, Trichinosis, Typhoid Fever. His National Provider Identifier (NPI) number is 1720168065. Appointment can be made via the phone number (713) 792-6161.
Conditions treated
Dr. David J. Tweardy, being an infectious disease specialist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. David J. Tweardy.
- Abdominal Pain
- Acquired Immunodeficiency Syndrome (AIDS)
- Acute Pain
- Anemia
- Anthrax
- Arthritis
- Asthma
- Atherosclerosis
- Bacterial Vaginosis
- Bladder Control
- Boils
- Botulism
- Bronchitis
- Brucellosis
- Cancer
- Candida Auris
- Cat Scratch Disease
- Cellulitis
- Chagas Disease
- Chest Pain
- Chickenpox
- Chlamydia
- Cholecystitis
- Cholera
- Chronic Obstructive Pulmonary Disease (COPD)
- Chronic Rhinitis
- Common Cold
- Constipation
- Coronavirus
- Cryptococcosis
- Cystitis
- Cytomegalovirus (CMV)
- Dengue Fever
- Diarrhea
- Diphtheria
- E. Coli Infection
- Eastern Equine Encephalitis (EEE)
- Ebola Hemorrhagic Fever
- Edema
- Encephalitis
- Endocarditis
- Epididymitis
- Fever
- Fifth Disease
- Food Poisoning
- Gangrene
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Genital Herpes
- Giardiasis
- Gonorrhea
- Guinea Worm Disease
- Hand, Foot, and Mouth Disease (HFMD)
- Headache
- Heart Disease
- Helicobacter Pylori Infection
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Herpes Simplex Virus
- Hiatal Hernia
- High Blood Pressure
- Histoplasmosis
- Hot Flashes
- Human Immunodeficiency Virus (HIV)
- Human Papillomavirus (HPV)
- Hyperlipidemia
- Hyponatremia
- Impetigo
- Infectious Diseases
- Infectious Mononucleosis
- Influenza
- Inguinal Hernia
- Leishmaniasis
- Leprosy
- Leptospirosis
- Listeriosis
- Lyme Disease
- Mad Cow Disease
- Malaria
- Measles
- Meningitis
- Migraine
- Mumps
- Nail Fungus
- Nausea and Vomiting
- Necrotizing Fasciitis (NF)
- Neutropenia
- Obesity
- Osteomyelitis
- Osteoporosis
- Peptic Ulcer
- Pinworm Infection
- Pityriasis Rosea
- Pneumonia
- Polio
- Prescription Refill
- Rabies
- Rocky Mountain Spotted Fever (RMSF)
- Roseola
- Rubella
- Salmonella Food Poisoning
- Scabies
- Scarlet Fever
- Schistosomiasis
- Sepsis
- Severe Acute Respiratory Syndrome (SARS)
- Sexually Transmitted Diseases (STDs)
- Smallpox
- Sore Throat
- Staph Infection
- Stomach Flu
- Strep Throat
- Swine Flu
- Syphilis
- Tetanus
- Thrush
- Tonsillitis
- Toxic Shock Syndrome (TSS)
- Toxoplasmosis
- Trichinosis
- Tuberculosis (TB)
- Typhoid Fever
- Upper Respiratory Infection (URI)
- Urethritis
- Urinary Tract Infection (UTI)
- Valley Fever
- Viral Hemorrhagic Fever (VHF)
- West Nile Virus
- Whooping Cough
- Yaws
- Yeast Infection
- Yellow Fever
- Zika Virus
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. David J. Tweardy as in-network for the following 2026 plans.
Health plans
Harbor Health
Network data as of Sep 14, 2026, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Harbor Health G0 $0 Deductible $0 PCP $0 Mental Health Office Visit $0 Express Care | HMO · Gold | Preferred | Accepting new patients |
| Harbor Health G1S $30 PCP $30 Mental Health Office Visit $30 Express Care | HMO · Gold | Preferred | Accepting new patients |
| Harbor Health S1 $0 PCP $0 Mental Health Office Visit $0 Express Care | HMO · Silver | Preferred | Accepting new patients |
| Harbor Health S1S $40 PCP $40 Mental Health Office Visit $40 Express Care | HMO · Silver | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. David J. Tweardy is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. David J. Tweardy is enrolled to bill Medicare as a Practitioner - Infectious Disease (also registered under: Practitioner - Internal Medicine) .
Bills through: Physicians Referral Service
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Biofire Diagnostics | $3750 |
| Astellas Pharma | $141 |
| Pfizer | $114 |
Other
| Travel and Lodging | $2250 |
| Other | $1500 |
| Food and Beverage | $547 |
Additional Specialities
- Internist
Looking for more Infectious Disease Specialists?
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- Gender: Male
- Address: 1515 Holcombe Boulevard Houston, 77030, TX
- Gender: Female
- Address: Suite 305 2201 West Holcombe Boulevard Houston, 77030, TX
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- Address: 905 West Medical Center Boulevard Suite 304 Webster, 77598, TX
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- Address: 6565 Fannin Street Houston, 77030, TX
- Gender: Female
- Address: 2603 Inwood Road Dallas, 75235, TX
- Gender: Male
- Address: 1515 Holcombe Boulevard Houston, 77030, TX
- Gender: Male
- Address: 1504 Taub Loop Houston, 77030, TX
- Gender: Female
- Address: 6431 Fannin Street Houston, 77030, TX
- Gender: Male
- Address: 6431 Fannin Street Houston, 77030, TX
- Gender: Male
- Address: Suite 600 6410 Fannin Street Houston, 77030, TX
Questions & Answers
Does Dr. David J. Tweardy accept insurance?
Dr. David J. Tweardy is listed in-network for 4 ACA Marketplace (Obamacare/HealthCare.gov) plans from Harbor Health. See the Marketplace plans section for details.
Where can you meet with Dr. David J. Tweardy?
Dr. David J. Tweardy's office is located at 1515 Holcombe Boulevard in Houston, TX 77030.
What conditions does Dr. David J. Tweardy treat?
Dr. David J. Tweardy provides treatment for Cholecystitis, Constipation, Gastroesophageal Reflux Disease (GERD), Guinea Worm Disease, Trichinosis, Typhoid Fever. For the full list see this list.