Christopher John Mays, MD| Internal Medicine | MedStar Health
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Christopher John Mays

Christopher John Mays, MD
Provider is directly employed by MedStar Health

5 out of 5 (2939 reviews)

Specialties: Internal Medicine

Languages: English

(301) 570-8536

Clinical areas of focus

  • Acute Illness Treatment
  • Chronic Disease Management
  • Health Maintenance Exam
  • Preventative Care
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Conditions and procedures

Conditions I treat

  • Abdominal Pain
  • Abnormal Blood
  • Abnormal Breathing
  • Abnormal Immunological Findings
  • Abnormal Movements
  • Abnormal Serum Enzyme Levels
  • Acute Bronchitis
  • Acute Sinusitis
  • Allergies
  • Anemia
  • Angina
  • Anus And Rectum Diseases
  • Aortic Aneurysm
  • Aphagia And Dysphagia
  • Artery Disorders
  • Atherosclerosis
  • Atrial Fibrillation
  • Atrioventricular Block
  • Back Pain
  • Bladder Disorders
  • Bleeding Disorders
  • Bone Disorders
  • Brain Disorders
  • Breast Lump
  • Candidiasis
  • Cardiac Arrhythmias
  • Cardiomyopathy
  • Cellulitis
  • Chronic Kidney Disease
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Colitis
  • Colon Cancer
  • Coronary Artery Disease
  • Cough
  • Cutaneous Abscess, Furuncle And Carbuncle
  • Cystitis
  • Deep Vein Thrombosis
  • Dementia
  • Depressive Episode
  • 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 Nose And Nasal Sinuses
  • Diverticulitis
  • Dyslipidemia
  • Dyspnea
  • Emphysema
  • Endocrine Disorders
  • Enlarged Prostate
  • Fatigue
  • Fever
  • Gallstones
  • Gastritis
  • Gastrointestinal Bleeding
  • Genitourinary Symptoms
  • Gout
  • Headache
  • Heart Disease
  • Hematuria
  • Hemorrhoids
  • High Blood Pressure
  • High Cholesterol
  • Hip Pain
  • Hordeolum And Chalazion
  • Hyperglycemia
  • Hypertension
  • Hyperthyroidism
  • Hypoglycemia
  • Hypotension
  • Influenza
  • Kidney Stones
  • Knee Pain
  • Migraine
  • Muscle Disorders
  • Myocardial Infarction
  • Nervous And Musculoskeletal Symptoms
  • Obesity
  • Osteoarthritis
  • Osteoporosis
  • Pain In Throat And Chest
  • Peptic Ulcer Disease
  • Peripheral Artery Disease
  • Pneumonia
  • Polyuria
  • Problems Related To Lifestyle
  • Rash
  • Respiratory Disorders
  • Skin And Subcutaneous Tissue Disorders
  • Skin Changes
  • Skin Swelling And Lumps
  • Sleep Disorders
  • Sore Throat
  • Specified Health Status
  • Tachycardia
  • Thyroid Disorders
  • Type 2 Diabetes Mellitus
  • Urinary Tract Infection
  • Vein Disorders
  • Venous Embolism
  • Weight Loss
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Procedures I perform

  • 24-Hour Blood Pressure Monitoring
  • Abdominal Aortic Aneurysm (AAA) Screening
  • Acute Illness Treatment
  • Advance Directive Planning
  • Anxiety Treatment
  • Asthma Management
  • Blood Pressure Monitoring
  • Cholesterol Screening
  • Chronic Disease Management
  • Copd Management
  • Diabetes Screening
  • Electrocardiogram
  • Flu Shot
  • Health Maintenance Exam
  • Hypertension Treatment
  • Immunization Administration
  • Lipid Profile
  • Lung Cancer Screening
  • Non-Pharmacological Interventions
  • Pre-Operative Clearance
  • Preventative Care
  • Rash Treatment
  • Respiratory Infection Treatment
  • Sinus Infection Treatment
  • Urinary Tract Infection Treatment
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Practice locations

Distance from Change Location Enter your Location

18111 Prince Philip Dr
Ste 207
Olney, MD, 20832

301-570-8535
Get Directions

miles away

Fax 855-778-6918

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

Education

Board Certification: American Board of Internal Medicine, Internal Medicine

Residency: Washington Hospital Center (1991)

Medical School: University of Maryland School of Medicine (1988)

Hospital affiliations

Ratings and reviews

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

    5
  • Extent to which the care provider listened to you

    5
  • Care provider’s discussion of any proposed treatment (options, risks, benefits, etc.)

    5
  • Provider included you in decisions

    5
  • Concern the care provider showed for your questions or worries

    5
  • Likelihood of recommending this care provider to others

    5
  • May 26, 2026

    Dr. Mays is awesome!

  • May 17, 2026

    Provider is a very hood listener, I get to explain what's going on with my health problem, explain how we are going to treat the problem. What to expect and I can reach out again if not feeling better in a reasonable time.

  • May 16, 2026

    Dr Mays is treasure. He listens and really cares.