Dr. John Maddox, MD

Dr. John Maddox, MD

Critical Care SurgeryMale

Critical Care Surgery

Dr. John Maddox, MD is a Critical Care Surgery Specialist in Cheverly, MD. He is affiliated with UM Capital Region Medical Center. His office accepts new patients.


UM Capital Region Medical Group

UM Capital Region Medical Group3001 Hospital Dr # H401 Cheverly, MD 20785
New Patient?
(301) 786-5761

UM Capital Region Medical Group

UM Capital Region Medical Group2900 Mercy Lane Cheverly, MD 20785
New Patient?
(301) 786-5761

More Critical Care Surgery Specialists at University of Maryland Medical System

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Experience and Background Checks


Background Check

Healthgrades does not collect malpractice claims information for Maryland
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
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Experience Check

Check if Dr. Maddox treats your condition or procedure

Dr. Maddox's conditions and procedures:

  • Abdominal Pain
  • ACTH (Cosyntropin) Stimulation Test
  • ADHD and-or ADD
  • Alcohol Misuse Screening and Counseling
  • Alcohol or Substance Misuse Screening and Counseling
  • Allergic Rhinitis
  • Anal or Rectal Pain
  • Anemia
  • Anemia and Iron Deficiency Screening
  • Arrhythmia Screening
  • Asthma
  • Back Pain
  • Bacteriuria Screening
  • Blood Allergy Testing
  • Bone Density Scan
  • Breast Cancer Screening
  • Bruise of Face, Scalp, or Neck
  • Calcium Metabolism Disorders
  • Cancer Screening
  • Cardiovascular Stress Test
  • Chest Pain Evaluation
  • Chlamydia Infection Screening
  • Cholesterol Screening
  • Chronic Neck Pain
  • Constipation
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Dementia Evaluation
  • Dementia or Depression Screening
  • Detoxification Evaluation
  • Diabetes Screening
  • Diabetes Type 2
  • Diabetic Evaluation
  • Diabetic Polyneuropathy
  • Diarrhea
  • Dipstick Urinalysis
  • Disability Evaluation
  • Diverticulitis
  • Diverticulitis, Intestinal
  • Dizziness
  • Drug Allergy Testing
  • Dual-Energy X-Ray Absorptiometry (DEXA) Scan
  • Dyslexia Assessment
  • Dyslipidemia
  • Echocardiography
  • Evaluation and Treatment of Sleep Disorders
  • Fetal Cardiac Screening
  • Folic Acid Deficiency
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastroparesis
  • Genetic Screening for Breast Cancer
  • Geriatric Assessment
  • Gonorrhea Screening
  • Health Screening
  • Heart Disease
  • HeartAware Online Risk Screening
  • Hepatitis A Screening
  • Hepatitis B Virus Screening
  • Hepatitis C Virus Screening
  • Hepatitis Screening
  • Hernia
  • Herpes Simplex Screening
  • HIV Screening
  • Home Sleep Study
  • Hyperlipidemia
  • Hypertension
  • Hypokalemia
  • Hypothyroidism
  • Impairment Rating Evaluation
  • Independent Educational Evaluation
  • Joint Fluid Test
  • Joint Pain
  • Limb Pain
  • Lipid Disorders
  • Low Back Pain
  • Low Blood Oxygen Level
  • Lyme Disease Evaluation
  • Magnesium Metabolism Disorders
  • Malnutrition
  • Mammography
  • McMurray's Test
  • Melanoma Screening
  • Memory Evaluation
  • Menopause Evaluation and Treatment
  • Mineral Metabolism Disorders
  • Mole Evaluation
  • Nausea
  • Nosebleed
  • Oral Glucose Tolerance Test
  • Osteoporosis
  • Osteoporosis Screening
  • Ovarian Cancer Screening
  • Patch Testing
  • Pollen Allergy
  • Polyneuropathy
  • Potassium Deficiency
  • Pre-Operative Evaluation
  • Pregnancy Test
  • Prostate Cancer Screening
  • Prostate Cancer Screening Exam (DRE)
  • Prostatitis
  • Psychiatric Evaluation
  • Psychiatric Evaluation - Child and Adolescent
  • Psychological Evaluation
  • Psychological Evaluations Prior to Bariatric Surgery
  • Rapid Flu Test
  • Sexually Transmitted Diseases (STDs)
  • Sexually Transmitted Infections Screening
  • Sinus Tachycardia
  • Skin Screenings
  • Skin Testing and Screening
  • Spinal and Postural Screening
  • STD Screening
  • Strep Test
  • Syphilis Screening
  • Thyroid Screening
  • Tobacco Use Disorder
  • Trichomoniasis Screening
  • Tuberculosis Screening
  • Urinary Stones
  • Urine Pregnancy Test
  • Vaccination
  • Vaginosis Screening
  • VAP Lipid Testing
  • Vertigo
  • Wheelchair Evaluation
  • Worker's Compensation Evaluations

Insurance Check

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Dr. Maddox accepts

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(301) 786-5761

About Me


Dr. John Maddox, MD is a Critical Care Surgery Specialist in Cheverly, MD. He is affiliated with UM Capital Region Medical Center. His office accepts new patients.


  • Critical Care Surgery

Frequently Asked Questions

How can I make an appointment with Dr. John Maddox, MD?

Call (301) 786-5761 to make an appointment as a new patient, or (301) 618-2242 for existing patients or other inquiries. Click here for more information.

Is Dr. John Maddox, MD accepting new patients?

Dr. John Maddox, MD generally accepts new patients on Healthgrades. You can see Dr. Maddox's profile to make an appointment.

Does Dr. John Maddox, MD accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Maddox accepts your insurance.

What are Dr. John Maddox, MD's top areas of care?

Dr. Maddox frequently treats Echocardiography, Dipstick Urinalysis, and Bacteriuria Screening. See all procedures and conditions Dr. Maddox treats.

Where is Dr. John Maddox, MD's office located?

Dr. Maddox's office is located at 3001 Hospital Dr # H401, Cheverly, MD 20785. Find other locations and directions on Healthgrades.

Does Dr. John Maddox, MD offer telehealth services?

Dr. Maddox has not yet indicated whether they offer telehealth services. Please contact the office to check for availability/eligibility.

Affiliated Hospitals

Dr. Maddox is affiliated with the following hospital. Select the hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

UM Capital Region Medical Center

Cheverly, MD

43% Patients that would definitely recommend, 27% lower than the national average

1 Award Received