William James Gallagher, MD| Family Medicine | MedStar Health
William James Gallagher

William James Gallagher, MD
Provider is directly employed by MedStar Health

4.7 out of 5 (161 reviews)

Specialties: Family Medicine

Languages: English

(301) 779-9001

Clinical areas of focus

  • Gastroesophageal Reflux Disease (GERD) In Children
  • Hypertension
  • Physical Exams
  • Respiratory Disorders
  • Type 2 Diabetes Mellitus
  • Wellness Exams
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Conditions and procedures

Conditions I treat

  • Abdomen, Lower Back, Pelvis, And Genital Injury
  • Abdomen, Lower Back, Pelvis, And Genital Open Wound
  • Abdominal Pain
  • Abnormal Blood Glucose Levels
  • Abnormal Body Structure Imaging
  • Abnormal Breast Imaging
  • Abnormal Breathing
  • Abnormal Drug Findings In Blood
  • Abnormal Function Study Results
  • Abnormal Serum Enzyme Levels
  • Abnormal Urine Test Results
  • Abnormal Vaginal Discharge
  • Acne
  • Acute Bronchitis
  • Acute Laryngitis And Tracheitis
  • Acute Pelvic Pain
  • Acute Sinusitis
  • Acute Upper Respiratory Infections Of Multiple Sites
  • Adult And Child Abuse, Neglect And Maltreatment
  • Allergic Contact Dermatitis
  • Allergic Rhinitis
  • Allergies
  • Ankle And Foot Injury
  • Ankle And Foot Ligament Sprain
  • Anogenital Warts
  • Anxiety
  • Back Pain
  • Black Eye
  • Bladder Incontinence
  • Blindness And Low Vision
  • Body Region Injury
  • Breast Inflammation
  • Bronchitis
  • Burn Injuries
  • Bursopathy
  • Candidiasis
  • Carrier Of Infectious Disease
  • Cellulitis
  • Cellulitis And Lymphangitis
  • Central Sleep Apnea
  • Chest Injury
  • Chest Pain
  • Chlamydia
  • Choledocholithiasis
  • Choroidal Nevi
  • Chronic Cough
  • Chronic Diseases Of Tonsils And Adenoids
  • Chronic Fatigue Syndrome
  • Chronic Indigestion
  • Chronic Kidney Disease
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Claudication
  • Cocaine Related Disorders
  • Conductive Hearing Loss
  • Contact With Communicable Diseases
  • Contact With Hazardous Health Exposures
  • Cough
  • Cradle Cap (SEBORRHEIC DERMATITIS)
  • Cutaneous Abscess
  • Deficiency Of B Group Vitamins
  • Deficiency Of Essential Nutrients
  • Depressive Episode
  • Dermatophytosis (RINGWORM)
  • Digestive System Symptoms
  • Diseases Of Lip And Oral Mucosa
  • Diseases Of Tongue
  • Diseases Of Upper Respiratory Tract
  • Disorders Of Lipoprotein Metabolism And Lipidemias
  • Disorders Of Mineral Metabolism
  • Disorders Of Nose And Nasal Sinuses
  • Disturbances Of Skin Sensation
  • Disturbances Of Smell And Taste
  • Dizziness And Lightheadedness
  • Dorsalgia
  • Dorsopathies
  • Duodenitis
  • Ear Infection
  • Ear Pain
  • Eating Disorders
  • Eczema
  • Eczema (ATOPIC DERMATITIS)
  • Elbow And Forearm Injury
  • Elbow Pain
  • Emotional Disorders
  • Emphysema
  • Enlarged Lymph Nodes
  • Enthesopathies
  • Enthesopathy Of Lower Limb
  • Eustachian Tube Disorders
  • Eye And Adnexa Disorders
  • Eye And Orbit Injury
  • Eye Infections
  • Eyelid Disorders
  • Family History Of Malignant Neoplasm
  • Fatigue
  • Female Genital Pain
  • Fever
  • Fibromyalgia
  • Finger, Hand, And Wrist Open Wound
  • Foot Joint Pain
  • Fungal Otitis Externa
  • Gallstones
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD) In Children
  • Genitourinary Symptoms
  • Gout
  • Head Injury
  • Headache
  • Heart Disease
  • Heart Murmur
  • Heartburn And Acid Reflux
  • Hematuria
  • Hemorrhagic Conditions
  • Hemorrhoids
  • Hemorrhoids And Perianal Venous Thrombosis
  • Herpes
  • Herpes (GENITAL HERPES)
  • High Blood Pressure
  • High Cholesterol
  • Hip And Thigh Open Wound
  • Hip And Thigh Tendon Injury
  • Hip Osteoarthritis
  • Hip Pain
  • Hives
  • Hordeolum And Chalazion
  • Hypertension
  • Hypertriglyceridemia
  • Hypertrophic Skin Disorders
  • Incontinence
  • Influenza
  • Influenza Due To Other Identified Influenza Virus
  • Ingrown Toenail
  • Insect Bites And Stings
  • Intervertebral Disc Disorders
  • Intestinal Infections
  • Irritable Bowel Syndrome
  • Joint Disorder
  • Joint Sprain
  • Kidney And Ureter Disorders
  • Kidney Stones
  • Knee And Leg Open Wound
  • Knee Joint And Ligament Sprain
  • Knee Pain
  • Lacrimal Gland Disorders
  • Laryngitis
  • Leg Pain
  • Liver Enzyme Abnormalities
  • Long Term Drug Therapy
  • Lower Back Pain
  • Lower Leg Injury
  • Malabsorption
  • Malaise And Fatigue
  • Male Genital Organ Disorders
  • Menstrual Cramps
  • Menstrual Disorders
  • Mesothelioma
  • Middle Ear Disorders
  • Migraine
  • Mononeuropathy Of Upper Limb
  • Mouth Sores
  • Multiple Sclerosis
  • Muscle Strain
  • Nail Disorders
  • Nasopharyngitis
  • Nausea
  • Neck Pain
  • Nervous And Musculoskeletal Symptoms
  • Newborn Feeding Problems
  • Nonscarring Hair Loss
  • Nonsuppurative Otitis Media
  • Obesity
  • Osteoarthritis
  • Osteoporosis
  • Otalgia And Ear Effusion
  • Overactive Bladder
  • Pain In Throat And Chest
  • Painful Urination
  • Palpitations
  • Penis Disorders
  • Personal History Of Diseases And Conditions
  • Pilar Cysts
  • Plantar Fasciitis
  • Plantar Warts
  • Pneumonia
  • Poison Ivy, Oak, Sumac
  • Polycystic Liver Disease
  • Polycystic Ovary Syndrome
  • Postnasal Drip
  • Premenstrual Syndrome (PMS)
  • Problems Related To Lifestyle
  • Proteinuria
  • Protozoal Diseases
  • Pruritus
  • Psoriasis
  • Rash
  • Raynaud's Disease
  • Reaction To Stress And Adjustment Disorders In Children
  • Rectal Pain
  • Respiratory Disorders
  • Rheumatoid Arthritis
  • Rhinitis
  • Scabies
  • Sciatica
  • Sedative Use Disorder
  • Shingles
  • Shoulder And Upper Arm Muscle, Fascia, And Tendon Injury
  • Shoulder And Upper Arm Tendon Injury
  • Shoulder Joint And Ligament Sprain
  • Shoulder Joint Pain
  • Sinus Infections
  • Skin And Soft Tissue Infections
  • Skin And Subcutaneous Tissue Disorders
  • Skin Changes
  • Skin Swelling And Lumps
  • Sleep Disorders
  • Soft Tissue Pain
  • Sore Throat
  • Spondylopathies
  • Sprain
  • Sprains And Strains
  • Staphylococcal Infection
  • Stomach Flu
  • Stomatitis And Related Lesions
  • Strep Throat
  • Stress
  • Superficial Abdomen Injury
  • Superficial Knee Injury
  • Superficial Mycoses
  • Syncope
  • Tachycardia
  • Tarsal Tunnel Syndrome
  • Tendinitis
  • Tendinous Disorders
  • Tennis Elbow
  • Testicular Pain
  • Throat Infection (TONSILLITIS)
  • Throat Pain
  • Thumb Synovitis
  • Thyroid Disorders
  • Tinnitus
  • Tuberculosis
  • Type 2 Diabetes
  • Type 2 Diabetes Mellitus
  • Urinary Tract Infection (UTI)
  • Urological Disorders
  • Urticaria
  • Uterine Fibroids
  • Vagina And Vulva Inflammation And Infections
  • Vaginal Infections
  • Vaginal Itching
  • Vaginitis
  • Varicose Veins Of Lower Extremities
  • Vasomotor And Allergic Rhinitis
  • Vertigo
  • Vestibular Disorders
  • Viral Diseases
  • Viral Warts
  • Vision Disturbances
  • Vitamin Deficiency
  • Vomiting
  • Vomiting And Nausea
  • Weight Loss
  • Wrist And Hand Joint And Ligament Dislocation And Sprain
  • Wrist And Hand Tendon Injury
  • Yeast Infection
  • Zoster
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Procedures I perform

  • Adhd Assessment
  • Advance Directive Planning
  • Allergen Immunotherapy
  • Anxiety Disorder Screening
  • Asthma Management
  • Back Pain Treatment
  • Biopsy Of Skin
  • Birth Control
  • Blood Pressure Monitoring
  • Body Mass Index (BMI) Evaluation
  • Breast Exam
  • Breathing Treatments
  • Cardiovascular Disease Screening
  • Cervical Biopsy
  • Cervix Dilation
  • Cholesterol Screening
  • Chronic Cough Treatment
  • Chronic Headache Treatment
  • Cold And Flu Treatment
  • Cold Treatment
  • Continuous Glucose Monitoring System
  • Contraceptive Device Insertion
  • Copd Management
  • Depression Treatment
  • Dermatological Care
  • Destruction Of Benign Lesions
  • Diabetes Foot Care
  • Diabetes Screening
  • Diet Counseling
  • Digital Rectal Exam
  • Disease Prevention Screenings
  • Distance Stereoacuity Test
  • Drug Testing
  • Durable Power Of Attorney Discussion
  • Ekg (ELECTROCARDIOGRAM)
  • EKG Interpretation
  • Electrocardiogram
  • Electrodesiccation And Curettage
  • Fertility Counseling
  • Flu Shot Administration
  • Food Allergy Treatment
  • Foreign Body Removal From Ear
  • Foreign Body Removal From Skin
  • Functional Abdominal Pain Treatment
  • Gastrointestinal Bacterial Infection Diagnosis
  • Gastrointestinal Evaluation
  • Gastrointestinal Therapy
  • Geriatric Care
  • Geriatric Health Screening
  • Geriatric Sleep Disorder Treatment
  • Glucose Control Management
  • Gynecological Examination
  • Health Maintenance Exam
  • Health Promotion Counseling
  • Hearing Testing
  • Helicobacter Pylori Stool Test
  • HIV Testing And Treatment
  • Hormone Replacement Therapy
  • Hospice Care Referral
  • Hypertension Treatment
  • Hypothyroidism Treatment
  • Immunization Administration
  • Impacted Earwax Removal
  • Infection Treatment
  • Injections For Pain Relief
  • Intrauterine Device
  • Labs And Blood Work
  • Mammogram Referral
  • Mental Health Medication Management
  • Mixed Venous Oxygen Saturation
  • Muscle Injection
  • Nebulizer Therapy
  • Nexplanon Placement And Removal
  • Nitrogen Washout Treatment
  • Occupational Therapy Evaluation
  • Oral And Pharyngeal Swallowing Function Evaluation
  • Osteoporosis Risk Assessment
  • Palliative Care Services
  • Pap Smear
  • Pediatric Autism Screening
  • Pediatric Sick Visit
  • Pesticide Poisoning Treatment
  • Physical Exams
  • Physical Performance Test
  • Physical Therapy Modalities
  • Physical Therapy Referral
  • Prostate Ultrasound
  • Psa Testing
  • Pulsatile Tinnitus Treatment
  • Reproductive Planning
  • Retinal Laceration Repair
  • Risk Assessment
  • Routine Check-Up
  • School Physicals
  • Sinus Infection Treatment
  • Sinusitis Treatment
  • Skin Allergy Testing
  • Skin Cancer Screening
  • Skin Tag Removal
  • Spirometry Test
  • Sports Physicals
  • Suture Removal
  • Swallowing Disorder Treatment
  • Tension Headache Treatment
  • Therapeutic Activities
  • Therapeutic Exercises
  • Tobacco Cessation
  • Travel Health
  • Tuberculosis Testing
  • Ulcerative Colitis-Associated Arthritis Treatment
  • Urinary Incontinence Treatment
  • Urinary Protein Test
  • Urinary Tract Infection (UTI) Treatment
  • Vaccinations
  • Venous Blood Collection
  • Viral Gastroenteritis Treatment
  • Vision Screening
  • Well Woman Exams
  • Wellness Exams
  • Wellness Services
  • Women's Health Exam
  • Wound Repair
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Practice locations

Distance from Change LocationEnter your Location

4151 Bladensburg Rd
Colmar Manor, MD, 20722

301-699-7700

Fax 301-779-9001

Get Directions

miles away

Fax 301-779-9001

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

Education

Board Certification: American Board of Family Medicine, Family Medicine

Residency: Georgetown University (1996)

Medical School: Temple University School Of Medicine (1993)

Ratings and reviews

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

    4.7
  • Extent to which the care provider listened to you

    4.8
  • Care provider’s discussion of any proposed treatment (options, risks, benefits, etc.)

    4.7
  • Provider included you in decisions

    4.7
  • Concern the care provider showed for your questions or worries

    4.7
  • Likelihood of recommending this care provider to others

    4.7
  • Dec 18, 2025

    Amazing Doctor

  • Oct 15, 2025

    Excellent kindness

  • Sep 23, 2025

    Dr. Gallagher is very good never had any problems.