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

Carl Johnson, MD
Provider is directly employed by MedStar Health

4.8 out of 5 (2084 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
  • Adrenal Hormone Level Testing
  • 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
  • Infectious Disease Treatment
  • 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
  • Transitional Care Planning
  • 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
    • Kaiser Permanente Select - Added Choice
    • Anthem BCBS Medi Blue SNP
    • Aetna Quality Point of Service (POS)
    • Kaiser Permanente Flexible Choice POS Cardiac Global
    • UnitedHealthcare Individual Exchange Plans
    • Aetna Advantage 5750
    • Aetna Signature Administrator PPO/TPA
    • Aetna VA Exchange
    • IH-POS
    • Maryland Physicians Care MCO
    • MedStar Family Choice - Maryland Health Choice
    • IH-Open EPO Plus
    • IH-Open Network Only Plus
    • Select HMO/HealthFund/Health Network
    • Veterans Affairs Community Care Network
    • United Healthcare Navigate Cardiac Global
    • Aetna Classic 5000
    • HealthyBlue PPO
    • Medicare Advantage - Advantra Value (PPO)
    • Sentara Health
    • CareFirst MedStar Select PPO
    • Medicare Direct
    • IH-Open POS Plus
    • CareFirst Group Medicare Advantage
    • OCI Direct (HMO)
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • Coventry of Delaware HMO/PPO
    • BlueChoice Open Access
    • CareFirst Blue Choice Opt Out Plus Open Access (POS)
    • Health Services for Children with Special Needs
    • NYC Medicare Advantage Plus
    • United Student Resources
    • Anthem BCBS of VA HealthKeepers (HMO)
    • CareFirst Maryland Indemnity or PPO
    • CareFirst Federal Employee Program (Std. & Basic PPO)
    • Kaiser Permanente HMO Plus and DHMO Plus Member
    • CIGNA SureFit (HMO)
    • Choice POS II
    • HumanaChoice PPO
    • Anthem BCBS of VA Key Care POS/PPO/Indemnity
    • Private Health Care Systems (PPO)
    • Aetna Managed Choice (POS)
    • Kaiser Permanente Medicare Plus
    • Cigna Preferred Medicare (HMO)
    • United Healthcare Select HMO - EPO/NPP
    • AmeriHealth Caritas DC Healthcare Alliance
    • United Healthcare Select HMO-EPO/NPP Cardiac Global
    • MultiPlan, Inc
    • Blue Choice Advantage
    • Optima Family Care MCO - VA Medicaid MCO
    • IH-Network Only Plus
    • CareFirst BlueCross BlueShield Advantage Core/Enhanced
    • Cigna True Choice Medicare (PPO)
    • M.D. IPA (HMO)
    • Aetna Managed Choice Open Access (POS)
    • Choice POS
    • WellPoint Maryland - Maryland Health Choice
    • AmeriHealth Caritas DC Healthy Families
    • UHC Passport
    • Kaiser Permanente Medicare Advantage Signature and Select
    • Medicare FFS
    • First Health PPO
    • Mamsi Life & Health (Indem./PPO) Cardiac Global
    • Anthem Federal Employee Program Standard
    • CareFirst BlueChoice HMO
    • Humana Medicare Advantage - HMO Open Access
    • CareFirst NASCO
    • Coventry Health Care National Network PPO
    • UnitedHealthcare Medicare Adv. Special Needs Plans
    • Aetna Student Health Insurance
    • IH-POS Plus
    • United Medicare Private Fee-for-Service (PFFS) plans
    • UnitedHealthcare Medicare Advantage DSNP District of Columbia
    • IH-Open HMO Option
    • CareFirst MedStar PPO
    • OA Plus
    • BCBS Out-of-State Medicare Plans (Blue Advantage)
    • United Healthcare Community Plan - VA Medicaid MCO
    • Healthy Blue (HMO, POS)
    • Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
    • UnitedHealthcare and AARP Medicare Complete Plans
    • MedStar Family Choice DC Healthcare Alliance
    • Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
    • Aetna Traditional Choice (PPO)
    • Cigna TotalCare (HMO D-SNP)
    • Magellan Complete Care of VA - VA Medicaid MCO
    • Mamsi Life & Health (Indem./PPO)
    • Humana Medicare Advantage - PPO
    • Private Fee-for-Service Plans (PFFS)
    • CareFirst Blue Card Program
    • TRICARE East Prime
    • Choice Care Network/HUMANA (PPO)
    • MedStar Family Choice - Maryland Health Choice
    • United Healthcare Choice Plus Cardiac Global
    • CareFirst Blue Preferred PPO
    • United Healthcare Options (PPO)
    • Cigna Achieve Medicare (HMO C-SNP)
    • Optimum Choice
    • Anthem BCBS of VA HealthKeepers (POS & POS OA)
    • M.D. IPA Preferred (POS)
    • Options PPO Cardiac Global
    • Aetna Advantage 6350
    • CareFirst FEP Blue Focus
    • CIGNA Indemnity
    • Kaiser Maryland Medicaid MCO
    • Aetna Premier 200PD
    • Optimum Choice Preferred (POS)
    • Aetna Medicare Advantage PFFS Plan
    • Amerigroup DC Healthy Families
    • Aetna Better Health of VA
    • Anthem BCBS Medi Blue Dual Adv
    • CareFirst (NCA) Indemnity
    • Johns Hopkins Advantage MD PLUS PPO
    • Mamsi Life & Health (Indem./PPO)
    • DC/MD SHOP QHP Small Business Plans
    • Core Essential (HMO)
    • Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
    • Aetna Elect Choice/ Open Access (POS)
    • Choice POS II Open Access
    • CareFirst Dual Prime HMO-SNP
    • Aetna Advantage 6350PD
    • Kaiser Permanente Select
    • United Healthcare Choice Plus
    • Amerigroup DC Alliance
    • Alterwood Advanatge HMO & DSNP Plans
    • POS OA
    • Kaiser Permanente Flexible Choice 3-tier POS
    • TRICARE for Life East
    • Aetna Basic
    • Lasso Healthcare - Medicare Medical Savings Account
    • CIGNA HMO Open Access
    • Choice Fund PPO
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • CIGNA EPO
    • Erickson Advantage Plans
    • Aetna Better Health of MD
    • Beech Street PPO
    • CIGNA PPO
    • United Healthcare Select Plus (POS)
    • TRICARE East Select
    • Johns Hopkins Advantage MD PPO
    • AMERIVANTAGE/Amerigroup Community Care
    • Anthem BCBS of VA HealthKeepers Plus
    • MedStar Family Choice DC Healthcare Alliance
    • IH-PPO
    • Aetna Medicare Advantage HMO & PPO Plans
    • United Healthcare Choice Cardiac Global
    • IH-HMO
    • CIGNA HMO & Network (HMO)
    • Network OA
    • HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
    • UHC Group Medicare Advantage Plans (HMO, POS, PPO)
    • Humana Gold Plus HMO
    • CareFirst Maryland Point of Service Plan
    • UnitedHealthcare Individual Exchange Plans
    • CIGNA Connect EPO
    • Kaiser Permanente Signature
    • Kaiser Permaenete Signature - Added Choice Cardiac Global
    • Cigna Alliance Medicare (HMO)
    • Navigate
    • United Healthcare Choice
    • Priority Partners - Maryland Health Choice
    • IH-Indemnity
    • Anthem Federal Employee Program Basic
    • Police and Fire Clinic
    • Aetna Open Choice (PPO)
    • CIGNA PPO Plus
    • BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
    • Tricare Reserve Select
    • Aetna Classic 3500
    • IH-EPO Plus
    • Coventry Health Care of Virginia
    • CareFirst Administrators
    • CareFirst Blue Choice Opt Out Open Access
    • Employee Health Plan
    • MD IPA (HMO) & MD IPA Preferred Cardiac Global
    • Cigna True Choice Plus Medicare (PPO)
    • MedStar Family Choice DC Healthy Families
    • Kaiser Permanente Select Cardiac Global
    • CIGNA POS/Network POS
    • United HealthCare Community Plan - Maryland Health Choice Program
    • Johns Hopkins Advantage MD HMO
    • IH-Open HMO
    • Aetna HMO
    • IH-Open POS II
    • Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
    • TriWest Healthcare Alliance
    • CareFirst EPO
    • Great-West Healthcare POS/CIGNA
    • Geisinger Medicare Advantage
    • Aetna Worker's Compensation Network
    • HumanaChoice Honor's plan PPO
    • Jai Medical Systems - Maryland Health Choice
    • HighMark
    • Aetna Classic 5000PD
    • Anthem BCBS Medi Blue Plus
    • CareFirst Community Health Plan of MD
    • First Health PPO
    • Uniformed Services Family Health Plan
    • Kaiser Permanente Signature - Added Choice
    • Advantra Platinum (PPO)

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
  • Sep 23, 2025

    Keep up the job.

  • Sep 22, 2025

    Dr. Johnson is a charm he really shows concern to his patients and I appreciate all of his advice and his help and guidance

  • Sep 22, 2025

    Very understanding and really listen to my concerns. Even summarize the plan of care we discussed during the visit.