Ian Thomas Greenwalt, MD| Breast Surgery | MedStar Health

Ian Thomas Greenwalt, MD
Provider is directly employed by MedStar Health

4.9 out of 5 (518 reviews)

Specialties: Breast Surgery

Languages: English

About me

Ian T. Greenwalt, MD, is a board certified breast surgeon and Fellow of the American College of Surgeons (FACS) practicing in the MedStar Breast Health Program at MedStar Georgetown University Hospital.

A graduate of Boston College, Dr. Greenwalt received his medical degree from Drexel University College of Medicine. He completed his general surgery residency at University Hospitals Cleveland Medical Center/Case Western Reserve University. Dr. Greenwalt then completed a fellowship in breast oncologic surgery at MedStar Georgetown University Hospital and Medstar Washington Hospital Center.

Dr. Greenwalt specializes in management of both malignant and benign breast disease. Through the combination of minimally invasive surgical techniques and advanced oncoplastic skills, he strives to provide his patients with high-quality, comprehensive, multidisciplinary care.

Dr. Greenwalt has published papers and book chapters focusing on safety and efficacy of outpatient mastectomy with reconstruction, disparities in breast cancer care and the development of personalized breast cancer care. His research interests center on improving post-operative pain management through multi-modality pain control, lymphedema reduction and employing nerve-sparing operative techniques.

Additionally, Dr. Greenwalt is a passionate teacher, committed to educating medical students, residents and fellows as well as helping his patients understand their disease processes in order to make thoughtful, informed decisions in their care. He is an active member of the American College of Surgeons, the American Society of Breast Surgeons, and the Society of Surgical Oncology.

Clinical areas of focus

  • Breast Cancer
  • Carcinoma In Situ Of Breast
  • Ductal Carcinoma In Situ (DCIS)
  • Her2neu Receptor
  • Inflammatory Breast Cancer
  • Invasive Breast Cancer
  • Metastatic Breast Cancer
  • Triple Negative Breast Cancer
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Conditions and procedures

Conditions I treat

  • Abnormal Mammogram
  • Atypical Ductal Hyperplasia
  • Atypical Lobular Hyperplasia
  • Atypical Papilloma
  • Axillary Mass
  • Benign Breast Lump
  • Breast Abscess
  • Breast Cancer
  • Breast Cyst
  • Breast Diseases
  • Breast Lump
  • Breast Thickening
  • Carcinoma In Situ Of Breast
  • Contusion Of Breast
  • Dense Breast
  • Ductal Carcinoma In Situ (DCIS)
  • Dysplasia Of Breast
  • Er Positive Breast Cancer
  • Family History Of Breast Cancer
  • Fibroadenoma
  • Fibrocystic Breast Changes
  • Galactocele
  • Galactorrhea
  • Gynecomastia
  • Her2neu Receptor
  • Hereditary Breast And Ovarian Cancer
  • History Of Breast Cancer
  • History Of Fibrocystic Disease
  • Hypopigmented Nipple Lesions
  • Inflammatory Breast Cancer
  • Invasive Breast Cancer
  • Lobular Carcinoma In Situ (LCIS)
  • Male Breast Cancer
  • Mammary Duct Ectasia
  • Mammary Dysplasia
  • Mastitis
  • Mastodynia
  • Mastopathy
  • Metastatic Breast Cancer
  • Microcalcifications
  • Mondor's Disease
  • Nipple Discharge
  • Nipple Diseases
  • Nipple Fissure
  • Nipple Lesions
  • Paget's Disease Of The Breast
  • Postpartum Mastitis
  • Triple Negative Breast Cancer
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Procedures I perform

  • Aspiration Breast Cyst
  • Axillary Lymphadenectomy
  • Bloodless Breast Surgery
  • Breast Biopsy
  • Breast Cancer Follow Up
  • Breast Cancer Surgery
  • Breast Conservation
  • Breast Examination
  • Breast Fine Needle Aspiration
  • Breast Surgery
  • Cancer Risk Reduction Surgery
  • Core Needle Biopsy Of Breast
  • Intraoperative Radiation Therapy
  • Lumpectomy
  • Male Breast Reduction
  • Mastectomy
  • Mastotomy
  • Nipple Sparing Mastectomy
  • Oncoplastic Breast Surgery
  • Open Breast Biopsy
  • Sentinel Lymph Node Biopsy
  • Sentinel Node Biopsy
  • Skin Sparing Mastectomy
  • Ultrasound Guided Breast Biopsy
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Practice locations

Distance from Change LocationEnter your Location

5454 Wisconsin Avenue
Suite 1100
Chevy Chase, MD, 20815

301-215-9420

Fax 301-215-4470

Get Directions

miles away

Fax 301-215-4470

3800 Reservoir Road Northwest
Betty Lou Ourisman Breast Center
Washington, DC, 20007

202-295-0560

Fax 877-376-2420

Get Directions

miles away

Fax 877-376-2420

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 Medicare Advantage HMO & PPO Plans
    • Innovation Health: Open POS Plus
    • Innovation Health: Open POS II
    • Aetna Managed Choice Open Access (POS)
    • Aetna Choice POS & Choice POS II
    • Innovation Health: POS Plus
    • Aetna Managed Choice (POS)
    • Innovation Health: POS
    • Aetna Open HMO/Open HMO Option/Open EPO Plus
    • Aetna HMO-Open Access/Select OA
    • Aetna HealthFund/Health Network Option OA
    • Innovation Health: HMO & EPO Plus
    • Aetna Select HMO/HealthFund/Health Network
    • Aetna HMO
    • Innovation Health: Open Network Only Plus
    • Aetna Elect Choice/ Open Access (POS)
    • Innovation Health: Network Only Plus
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • Employee Health Plan (EHP)
    • Cigna TotalCare (HMO D-SNP)
    • Cigna Preferred Medicare
    • Cigna Alliance Medicare (HMO) |
    • Cigna Achieve Medicare (HMO C-SNP)
    • Veterans Affairs Community Care Network (VA CCN)
    • United Medicare Advantage DSNP District of Columbia
    • United Student Resources
    • United Select Plus (POS)
    • United Select HMO - EPO/NPP
    • United Options (PPO) (includes Empire PPO)
    • United Golden Rule
    • United GEHA (for all other states) Compass Rose
    • D-SNP)
    • I-SNP
    • United Nursing Home Plan (C-SNP
    • United Erickson Advantage Plans
    • United Choice Plus
    • United Choice
    • United Mamsi Life & Health
    • United Core Essential (HMO)
    • United Navigate
    • MedStar Family Choice DC Healthy Families
    • MedStar Family Choice DC Healthcare Alliance
    • United MD IPA Preferred (POS)
    • United MD IPA (HMO)
    • Kaiser Permanente Signature-Added Choice
    • Kaiser Signature
    • Kaiser HMO Plus and DHMO Plus Member
    • Kaiser Select-Added Choice
    • Kaiser Select
    • Kaiser Medicare Plus
    • Kaiser Medicare Advantage Signature and Select
    • Kaiser Flexible Choice
    • HumanaChoice PPO
    • HumanaChoice Honor’s plan PPO
    • Health Services for Children with Special Needs (HSCSN)
    • Cigna True Choice Plus Medicare (PPO)
    • Cigna True Choice Medicare (PPO)
    • Cigna POS/Network POS
    • Cigna Indemnity
    • Cigna POS Open Access & Open Access Plus
    • Cigna Network Open Access
    • Cigna HMO Open Access
    • Cigna PPO and PPO Plus
    • Cigna EPO
    • Cigna Choice Fund PPO
    • Beech Street PPO
    • Innovation Health: Indemnity
    • Aetna Traditional Choice (PPO)
    • Aetna Student Health Insurance
    • Aetna Signature Administrator PPO/TPA
    • Aetna Quality Point of Service (POS)
    • Innovation Health: PPO
    • Aetna Open Choice (PPO)
    • Cigna HMO & Network (HMO)
    • WellPoint Maryland - Maryland Health Choice
    • WellPoint Maryland
    • Virginia Premier
    • Veterans Affairs Community Care Network
    • UnitedHealthcare Individual Exchange Plans
    • United Community Plan - Maryland Health Choice Program
    • Uniformed Services Family Health Plan (USFHP)
    • Private Health Care Systems (PHCS) (PPO)
    • Priority Partners - Maryland Health Choice
    • Police and Fire Clinic
    • United Optimum Choice Preferred (POS) & OCI Direct (HMO)
    • United Optimum Choice
    • United Group Medicare Advantage Plans
    • United AARP Medicare Complete
    • Traditional Medicare Fee for Service
    • Medicaid - Virginia
    • Medicaid - Maryland
    • Medicaid - District of Columbia
    • Tricare for Life East
    • Tricare Reserve Select
    • Tricare East Select
    • Tricare East Prime
    • Maryland Point of Service Plan (MPOS)
    • HealthyBlue PPO
    • Federal Employee Program (Std/Basic PPO/Blue Focus)
    • CareFirst NASCO
    • CareFirst MedStar Select PPO
    • CareFirst MedStar PPO
    • CareFirst Maryland Indemnity or PPO
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • CareFirst Group Medicare Advantage
    • CareFirst BC/BS Advantage Core/Enhanced
    • CareFirst Blue Card Program (Out-of-area BCBS plans)
    • CareFirst Administrators
    • CareFirst (NCA) Indemnity
    • Carefirst BlueChoice Opt Out Plus Open Access (POS)
    • Carefirst Healthy Blue (HMO/POS)
    • Carefirst BlueChoice Opt Out Open Access
    • Carefirst BlueChoice Open Access
    • Carefirst BlueChoice HMO
    • Carefirst EPO
    • Carefirst Blue Preferred PPO
    • MedStar Family Choice - Maryland Health Choice
    • Coventry Health Care National Network PPO
    • First Health PPO
    • Coventry of Delaware HMO/PPO
    • Coventry Health Care of Virginia
    • Great-West Healthcare POS/CIGNA

Education

Fellowship Program: MedStar Washington Hospital Center (2020)

Residency Program: University Hospitals of Cleveland (2019)

Medical School: Drexel University College of Medicine (2014)

Awards

  • Top Doc 2022, Washingtonian Magazine Top Doc 2023, Washingtonian Magazine

Ratings and reviews

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

    4.9
  • Extent to which the care provider listened to you

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

    4.9
  • Care provider's efforts to include you in decisions about your care

    4.9
  • Concern the care provider showed for your questions or worries

    4.9
  • Likelihood of recommending this care provider to others

    4.9
  • Mar 14, 2024

    I have complete confidence in Dr Greenwalt, and have since my first visit with him 3+ years ago. I have never had any anxious feelings about any procedures ordered, even when I was faced with a double mastectomy. I knew I was in the best hands.

  • Mar 13, 2024

    Dr. Greenwalt was extremely patient and answered all of my questions--and I had several. He was thoughtful and had reviewed my case history!! He provided a plan for my care going forward. We also discussed the best life style for good health.

  • Mar 7, 2024

    Dr Greenwalt is very caring and easy to talk with