Carl Johnson, MD| Internal Medicine | MedStar Health
Carl Johnson

Carl Johnson, MD
Provider is directly employed by MedStar Health

4.8 out of 5 (2221 reviews)

Specialties: Internal Medicine

Languages: English

301-899-1445

About me

Areas of Clinical Interest:

  • Health Education for Chronic Disease Management
  • Hypertension
Philosophy of Care:
"My philosophy of care is focused on using evidence-based medicine in partnership with my patient to develop a plan of care that improves their quality of life and fits their life-style. My patients should leave the office with an understanding of their medical history, treatment plan, and steps they can take to improve their overall health."

Clinical areas of focus

  • Digestive System Symptoms
  • Heart Failure Medication Management
  • High Blood Pressure
  • Physical Exams
  • Preventive Action
  • Respiratory Disorders
  • Subclinical Hypothyroidism
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Conditions and procedures

Conditions I treat

  • Abdomen, Lower Back, Pelvis, And Genital Injury
  • Abdominal Pain
  • Abnormal Blood Glucose Levels
  • Abnormal Breathing
  • Abnormal Drug Findings In Blood
  • Abnormal Function Study Results
  • Abnormal Heart Rhythm
  • Abnormal Immunological Findings
  • Abnormal Lung Imaging Results
  • Abnormal Urine Test Results
  • Acute Bronchitis
  • Acute Cholecystitis
  • Acute Endocarditis
  • Acute Myocardial Infarction
  • Acute Pancreatitis
  • Acute Sinusitis
  • Adrenal Crisis
  • Adrenal Gland Disorder
  • Allergic Contact Dermatitis
  • Allergies
  • Anemia
  • Angina
  • Anxiety
  • Aphagia And Dysphagia
  • Ascites
  • Atherosclerosis
  • Back Pain
  • Bipolar Disorder
  • Bladder Disorders
  • Bladder Incontinence
  • Bleeding Disorders
  • Body Region Injury
  • Bone Density Disorder
  • Bone Disorders
  • Bowel Obstruction
  • Breast Lump
  • Bronchiectasis
  • Bronchiolitis
  • Bronchitis
  • Bursopathy
  • Candidiasis
  • Cardiac Arrhythmias
  • Cardiometabolic Disorders
  • Cellulitis
  • Cellulitis And Lymphangitis
  • Central Sleep Apnea
  • Chest Pain
  • Choledocholithiasis
  • Cholestasis
  • Chronic Asthma
  • Chronic Fatigue Syndrome
  • Chronic Kidney Disease
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Clotting Disorders
  • Cocaine Related Disorders
  • Cognitive Function Disorders
  • Colitis
  • Colon Disease
  • Congenital Malformations Of Musculoskeletal System
  • Contact With Communicable Diseases
  • Convulsions
  • Coronary Artery Disease
  • Cough
  • Crohn's Disease
  • Crohn's Disease [Regional Enteritis]
  • Cushing Syndrome
  • Cutaneous Abscess, Furuncle And Carbuncle
  • Cystitis
  • Deforming Dorsopathies
  • Dementia
  • Depression
  • Depressive Episode
  • Diabetes Insipidus
  • Diabetic Nephropathy
  • Diabetic Neuropathy
  • Digestive System Diseases
  • Digestive System Symptoms
  • Diseases Of Esophagus
  • Diseases Of Lip And Oral Mucosa
  • Diseases Of Salivary Glands
  • Diseases Of Upper Respiratory Tract
  • Disorders Of Fluid, Electrolyte And Acid
  • Disorders Of Mineral Metabolism
  • Disorders Of Nose And Nasal Sinuses
  • Disorders Of White Blood Cells
  • Disturbances Of Skin Sensation
  • Diverticulitis
  • Dizziness And Lightheadedness
  • Dorsalgia
  • Dorsopathies
  • Duodenal Ulcer
  • Duodenitis
  • Dyslipidemia
  • Dyspnea
  • Eczema (ATOPIC DERMATITIS)
  • Electrolyte Disorders
  • Emotional State Symptoms
  • Emphysema
  • Endocrine Disorders
  • Endocrine Hypertension
  • Epilepsy And Seizures
  • External Hemorrhoids
  • Extrapyramidal And Movement Disorders
  • Eye And Adnexa Disorders
  • Family History Of Malignant Neoplasm
  • Fatigue
  • Fever
  • Fibromyalgia
  • Finger, Hand, And Wrist Open Wound
  • Flatulence
  • Functional Intestinal Disorders
  • Fungal Otitis Externa
  • Gait And Balance Problems
  • Gallstones
  • Gastritis
  • Gastroesophageal Reflux Disease
  • Gastrointestinal Bleeding
  • Genitourinary Symptoms
  • Gout
  • Grave's Disease
  • Head Injury
  • Headache
  • Heart Disease
  • Hematuria
  • Hemorrhagic Conditions
  • Hemorrhoids
  • Hepatitis
  • High Blood Pressure
  • High Cholesterol
  • Hip Pain
  • Hordeolum And Chalazion
  • Hyperglycemia
  • Hypertension
  • Hypertension Crisis
  • Hyperthyroidism
  • Hypoglycemia
  • Hypotension
  • Inflammatory Spondylopathies
  • Influenza
  • Influenza Due To Other Identified Influenza Virus
  • Intervertebral Disc Disorders
  • Irritable Bowel Syndrome
  • Ischemic Heart Disease
  • Joint Disorder
  • Kidney And Ureter Calculus
  • Kidney And Ureter Disorders
  • Kidney Stones
  • Knee Pain
  • Liver Cirrhosis
  • Liver Enzyme Abnormalities
  • Liver Failure
  • Lower Back Pain
  • Lumbar Disc Disease
  • Lung Disease
  • Malaise And Fatigue
  • Malignant Neoplasm
  • Malignant Neoplasm Of Meninges
  • Mesothelioma
  • Middle Ear Disorders
  • Migraine
  • Mononeuropathy Of Lower Limb
  • Mononeuropathy Of Upper Limb
  • Multiple Myeloma
  • Multiple Sclerosis
  • Muscle Disorders
  • Nail Disorders
  • Nephrotic Syndrome
  • Nervous And Musculoskeletal Symptoms
  • Noninfective Gastroenteritis
  • Nonrheumatic Mitral Valve Disease
  • Nontoxic Goiter
  • Obesity
  • Obstructive And Reflux Uropathy
  • Ocular Myasthenia Gravis
  • Osteoarthritis
  • Osteoporosis
  • Pain In Throat And Chest
  • Pancreatic Diseases
  • Pancreatitis
  • Paraplegia And Quadriplegia
  • Paroxysmal Ventricular Tachycardia
  • Peptic Ulcer Disease
  • Pericardium Diseases
  • Peripheral Artery Disease
  • Peripheral Vascular Disease Of The Intestines
  • Persistent Pulmonary Hypertension
  • Personal History Of Diseases And Conditions
  • Personal Risk Factors
  • Persons Encountering Health Services
  • Pneumonia
  • Pneumonitis Due To Solids And Liquids
  • Polycystic Liver Disease
  • Polyuria
  • Problems Related To Lifestyle
  • Pulmonary Heart Disease
  • Rash
  • Renal Insufficiency
  • Respiratory Disorders
  • Respiratory Failure
  • Rheumatoid Arthritis
  • Sepsis
  • Shoulder And Upper Arm Tendon Injury
  • Shoulder Burns
  • Sickle
  • Sickle Cell Disease
  • Skin And Soft Tissue Infections
  • Skin And Subcutaneous Tissue Disorders
  • Skin Changes
  • Skin Swelling And Lumps
  • Sleep Disorders
  • Social Anxiety Disorder
  • Soft Tissue Pain
  • Sore Throat
  • Specified Health Status
  • Speech Disturbances
  • Spinal Stenosis
  • Spondylosis
  • Subclinical Hypothyroidism
  • Subcortical Infarction
  • Superficial Knee Injury
  • Systemic Connective Tissue Involvement
  • Systemic Lupus Erythematosus
  • Tachycardia
  • Tendinous Disorders
  • Thrombocytopenia
  • Thyroid Disorders
  • Transplanted Kidney Failure
  • Type 2 Diabetes
  • Type 2 Diabetes Mellitus
  • Ulcerative Colitis
  • Urinary Retention
  • Urinary Tract Infection
  • Urological Disorders
  • Valve Disease With Congestive Heart Failure
  • Vasculitis
  • Vein Disorders
  • Venous Embolism
  • Venous Ulcers
  • Ventral Hernia
  • Vestibular Disorders
  • Vision Disturbances
  • Vitamin Deficiency
  • Vitamin Deficiency Anemia
  • Volume Depletion
  • Vomiting And Nausea
  • Weight Loss
  • Zoster
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Procedures I perform

  • 24-Hour Blood Pressure Monitoring
  • Abscess Incision And Drainage
  • Adhd Assessment
  • Advance Directive Planning
  • Aging Education
  • Aging Life Care
  • Aging Resource Coordination
  • Aging Well Resources
  • Alcohol Abuse Treatment
  • Anticoagulation Therapy
  • Anxiety Disorder Screening
  • Anxiety Treatment
  • Arterial Pressure Monitoring
  • Arthrocentesis
  • Asthma Management
  • Behavioral Assessment
  • Blood Chemistry Test
  • Blood Pressure Monitoring
  • Body Mass Index (BMI) Evaluation
  • Cardiovascular Health Promotion
  • Cervical Epidural Steroid Injection
  • Cholesterol Screening
  • Chronic Cough Treatment
  • Chronic Headache Treatment
  • Cognitive Behavioral Therapy
  • Cold Treatment
  • Community Health
  • Community Health Education
  • Congestive Heart Failure Management
  • Continuous Glucose Monitoring System
  • Copd Management
  • Cystitis Treatment
  • Delirium Prevention
  • Diabetes Screening
  • Diabetes Treatment
  • Digital Rectal Exam
  • Disease Management Education
  • Disease Prevention
  • Electrocardiogram
  • Failure To Thrive Evaluation And Management
  • Falls Prevention
  • Fibrinolytic Therapy
  • Flu Shot
  • Functional Abdominal Pain Treatment
  • Genetic Mutation Testing
  • Geriatric Care
  • Geriatric Care Management
  • Geriatric Community Resources
  • Geriatric Health Screening
  • Grief Counseling
  • Gynecological Cancer Screening
  • Health Maintenance Exam
  • Health Promotion Counseling
  • Healthy Aging Resources
  • Heart Failure Medication Management
  • High Cholesterol Management
  • Home Safety Evaluations
  • Hormone Replacement Therapy
  • Hyperlipidemia Treatment
  • Hypertension Treatment
  • Immunization Administration
  • Impacted Earwax Removal
  • Intravenous Vitamin Therapy
  • Labs And Blood Work
  • Lactate Dehydrogenase
  • Lipid Profile
  • Medication Administration And Management
  • Mental Health Medication Management
  • Mental Status Exam
  • Milk Allergy Treatment
  • Mixed Venous Oxygen Saturation
  • Mole Removal
  • Muscle Injection
  • Nebulizer Therapy
  • Neuropsychological Testing
  • Nitrogen Washout Treatment
  • Non-Pharmacological Interventions
  • Osteoporosis Prevention Treatment
  • Osteoporosis Risk Assessment
  • Pain Medication Management
  • Palliative Care Coordination
  • Pap Smear
  • Peak Flow Measurement
  • Pharmacogenomics
  • Pharmacological Therapy
  • Physical Exams
  • Pioglitazone Therapy
  • Pre-Operative Clearance
  • Preventive Action
  • Rash Treatment
  • Respiratory Infection Treatment
  • Rheumatology Treatment
  • Senior Coaching
  • Sexually Transmitted Disease Testing
  • Sinus Infection Treatment
  • Sinusitis Treatment
  • Skin Tag Removal
  • Sleep Disorder Management
  • Sore Throat Management
  • Spirometry Test
  • Staple Removal
  • Suture Removal
  • Tobacco Cessation
  • Tuberculosis Testing
  • Ulcerative Colitis-Associated Arthritis Treatment
  • Undersea Medicine Consultation
  • Urinary Protein Test
  • Urinary Tract Infection (UTI) Treatment
  • Urinary Tract Infection Treatment
  • Vaccinations
  • Venous Blood Collection
  • Venous Ulcer Treatment
  • Ventricular Fibrillation Treatment
  • Vision Screening
  • Wellness Exams
  • Wellness Services
  • Women's Health Exam
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Practice locations

Distance from Change LocationEnter your Location

5801 Allentown Rd
Ste 510
Camp Springs, MD, 20746

301-899-0020

Fax 301-899-1445

Get Directions

miles away

Fax 301-899-1445

Insurance

MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.

  • List of insurance plans we accept
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • CIGNA Connect EPO
    • CareFirst (NCA) Indemnity
    • Aetna Basic
    • Aetna HMO
    • CareFirst NASCO
    • HighMark
    • Aetna Advantage 5750
    • Medicare Advantage - Advantra Value (PPO)
    • Aetna Advantage 6350PD
    • IH-Network Only Plus
    • Kaiser Permanente Flexible Choice 3-tier POS
    • Erickson Advantage Plans
    • Anthem BCBS Medi Blue Plus
    • Anthem BCBS Medi Blue SNP
    • Police and Fire Clinic
    • MultiPlan, Inc
    • Private Health Care Systems (PPO)
    • Lasso Healthcare - Medicare Medical Savings Account
    • Cigna TotalCare (HMO D-SNP)
    • United Healthcare Select Plus (POS)
    • United Healthcare Choice Plus Cardiac Global
    • Tricare Reserve Select
    • OCI Direct (HMO)
    • Choice Care Network/HUMANA (PPO)
    • Optima Family Care MCO - VA Medicaid MCO
    • Aetna Worker's Compensation Network
    • IH-POS Plus
    • Anthem BCBS of VA HealthKeepers Plus
    • CIGNA EPO
    • UHC Group Medicare Advantage Plans (HMO, POS, PPO)
    • Coventry Health Care of Virginia
    • Aetna Premier 200PD
    • Aetna Elect Choice/ Open Access (POS)
    • AmeriHealth Caritas DC Healthy Families
    • Navigate
    • M.D. IPA Preferred (POS)
    • Johns Hopkins Advantage MD PPO
    • CareFirst Blue Card Program
    • Cigna Achieve Medicare (HMO C-SNP)
    • Medicare Direct
    • United Healthcare Choice Cardiac Global
    • UnitedHealthcare Medicare Adv. Special Needs Plans
    • Kaiser Permanente Select - Added Choice
    • Cigna True Choice Medicare (PPO)
    • CareFirst Maryland Point of Service Plan
    • TriWest Healthcare Alliance
    • Aetna Classic 5000PD
    • CareFirst FEP Blue Focus
    • IH-Indemnity
    • Johns Hopkins Advantage MD HMO
    • Aetna VA Exchange
    • CareFirst Federal Employee Program (Std. & Basic PPO)
    • Humana Gold Plus HMO
    • Healthy Blue (HMO, POS)
    • Humana Medicare Advantage - PPO
    • CareFirst MedStar Select PPO
    • Humana Medicare Advantage - HMO Open Access
    • IH-Open Network Only Plus
    • CareFirst Group Medicare Advantage
    • CIGNA PPO Plus
    • AmeriHealth Caritas DC Healthcare Alliance
    • CareFirst MedStar PPO
    • CareFirst EPO
    • United Healthcare Community Plan - VA Medicaid MCO
    • TRICARE East Select
    • Anthem BCBS of VA Key Care POS/PPO/Indemnity
    • Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
    • Aetna Managed Choice (POS)
    • IH-Open POS II
    • United Healthcare Choice
    • IH-HMO
    • Kaiser Permanente Select
    • Medicare FFS
    • Anthem BCBS Medi Blue Dual Adv
    • HumanaChoice Honor's plan PPO
    • Geisinger Medicare Advantage
    • IH-Open HMO
    • CareFirst Dual Prime HMO-SNP
    • Kaiser Permanente Medicare Advantage Signature and Select
    • Aetna Medicare Advantage PFFS Plan
    • HealthyBlue PPO
    • Optimum Choice Preferred (POS)
    • AMERIVANTAGE/Amerigroup Community Care
    • Aetna Better Health of MD
    • Priority Partners - Maryland Health Choice
    • Aetna Student Health Insurance
    • Veterans Affairs Community Care Network
    • Magellan Complete Care of VA - VA Medicaid MCO
    • IH-PPO
    • Blue Choice Advantage
    • Aetna Classic 5000
    • MedStar Family Choice - Maryland Health Choice
    • United Student Resources
    • United Healthcare Choice Plus
    • CareFirst Blue Preferred PPO
    • Sentara Health
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • CareFirst Community Health Plan of MD
    • UnitedHealthcare Individual Exchange Plans
    • CIGNA Indemnity
    • CIGNA HMO & Network (HMO)
    • Cigna Preferred Medicare (HMO)
    • CIGNA HMO Open Access
    • Network OA
    • HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
    • First Health PPO
    • Kaiser Maryland Medicaid MCO
    • Aetna Open Choice (PPO)
    • Kaiser Permaenete Signature - Added Choice Cardiac Global
    • UnitedHealthcare and AARP Medicare Complete Plans
    • Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
    • Employee Health Plan
    • Jai Medical Systems - Maryland Health Choice
    • United Healthcare Select HMO - EPO/NPP
    • IH-Open HMO Option
    • Kaiser Permanente Signature - Added Choice
    • NYC Medicare Advantage Plus
    • IH-Open EPO Plus
    • Mamsi Life & Health (Indem./PPO)
    • Choice POS
    • Amerigroup DC Alliance
    • CIGNA PPO
    • United Healthcare Select HMO-EPO/NPP Cardiac Global
    • Aetna Signature Administrator PPO/TPA
    • CareFirst Blue Choice Opt Out Plus Open Access (POS)
    • Amerigroup DC Healthy Families
    • Core Essential (HMO)
    • United Medicare Private Fee-for-Service (PFFS) plans
    • Advantra Platinum (PPO)
    • CIGNA POS/Network POS
    • BlueChoice Open Access
    • CareFirst Maryland Indemnity or PPO
    • Kaiser Permanente Flexible Choice POS Cardiac Global
    • Great-West Healthcare POS/CIGNA
    • Optimum Choice
    • TRICARE for Life East
    • Mamsi Life & Health (Indem./PPO) Cardiac Global
    • Anthem Federal Employee Program Standard
    • TRICARE East Prime
    • Cigna Alliance Medicare (HMO)
    • Aetna Medicare Advantage HMO & PPO Plans
    • CareFirst Blue Choice Opt Out Open Access
    • Coventry Health Care National Network PPO
    • IH-POS
    • IH-EPO Plus
    • CIGNA SureFit (HMO)
    • POS OA
    • OA Plus
    • HumanaChoice PPO
    • United Healthcare Options (PPO)
    • Kaiser Permanente HMO Plus and DHMO Plus Member
    • Aetna Better Health of VA
    • UnitedHealthcare Medicare Advantage DSNP District of Columbia
    • United HealthCare Community Plan - Maryland Health Choice Program
    • First Health PPO
    • Health Services for Children with Special Needs
    • Uniformed Services Family Health Plan
    • Maryland Physicians Care MCO
    • CareFirst BlueChoice HMO
    • Select HMO/HealthFund/Health Network
    • Choice POS II
    • Kaiser Permanente Medicare Plus
    • Anthem Federal Employee Program Basic
    • UHC Passport
    • MedStar Family Choice DC Healthcare Alliance
    • M.D. IPA (HMO)
    • Aetna Managed Choice Open Access (POS)
    • Options PPO Cardiac Global
    • Aetna Quality Point of Service (POS)
    • Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
    • Coventry of Delaware HMO/PPO
    • Choice POS II Open Access
    • Aetna Traditional Choice (PPO)
    • Beech Street PPO
    • WellPoint Maryland - Maryland Health Choice
    • BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
    • IH-Open POS Plus
    • CareFirst BlueCross BlueShield Advantage Core/Enhanced
    • Alterwood Advanatge HMO & DSNP Plans
    • CareFirst Administrators
    • Kaiser Permanente Signature
    • MedStar Family Choice DC Healthy Families
    • Aetna Classic 3500
    • Anthem BCBS of VA HealthKeepers (HMO)
    • Cigna True Choice Plus Medicare (PPO)
    • Johns Hopkins Advantage MD PLUS PPO
    • Aetna Advantage 6350
    • BCBS Out-of-State Medicare Plans (Blue Advantage)
    • MD IPA (HMO) & MD IPA Preferred Cardiac Global
    • United Healthcare Navigate Cardiac Global
    • Choice Fund PPO
    • DC/MD SHOP QHP Small Business Plans
    • Kaiser Permanente Select Cardiac Global
    • Anthem BCBS of VA HealthKeepers (POS & POS OA)
    • Private Fee-for-Service Plans (PFFS)

Education

Residency Program: MedStar Washington Hospital Center (1994)

Internship Program: MedStar Washington Hospital Center (1992)

Medical School: George Washington University (1991)

Ratings and reviews

  • Explanations the care provider gave you about your problem or condition

    4.8
  • Extent to which the care provider listened to you

    4.9
  • Care provider’s discussion of any proposed treatment (options, risks, benefits, etc.)

    4.8
  • Provider included you in decisions

    4.8
  • Concern the care provider showed for your questions or worries

    4.8
  • Likelihood of recommending this care provider to others

    4.8
  • Dec 29, 2025

    I highly recommend Dr Carl Johnson to my family and friends

  • Dec 23, 2025

    Any concerns were addressed in a good manner and patience

  • Dec 17, 2025

    Dr. Carl Johnson is an outstanding physician dedicated & devoted to patients he's very knowledgeable.