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
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
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
Practice locations
Distance from Change LocationEnter your Location
3800 Reservoir Road Northwest Betty Lou Ourisman Breast Center Washington, DC, 20007
202-295-0560Fax 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.
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List of insurance plans we accept
- Blue Choice Advantage & Healthy Blue (HMO, POS)
- UnitedHealthcare and AARP Medicare Complete Plans/ UHC Group Medicare Advantage Plans HMO, POS, PPO
- United Healthcare Options (PPO) (includes Empire PPO, GEHA, Compass Rose)
- UnitedHealthcare Medicare Adv/Special Needs Plans
- UHC Community Plan of MD
- Private Health Care Systems (PHCS) (PPO)
- Medicare Fee for Service
- Kaiser Virginia Premier
- Kaiser PermanenteSelect-Added Choice
- Kaiser Permanente Signature-Added Choice
- Kaiser Permanente Signature
- Kaiser Permanente Select
- Kaiser Permanente Medicare Plus (Medicare Supplemental Plan)
- Kaiser Permanente Flexible Choice POS
- Kaiser MD Medicaid MCO
- Cigna HealthSpring Medicare Advantage
- CFBCBS Federal Employee Program (Std/Basic PPO/Blue Focus)
- CFBCBS EPO
- Aetna Better Health of Maryland
- Aetna Innovations: HMO & EPO Plus
- Select HMO/HealthFund/Health Network
- Aetna HMO
- Open POS II
- Innovation Health: Open POS Plus
- Choice POS & Choice POS II
- Aetna Managed Choice Open Access (POS)
- Open EPO Plus
- Opoen HMO Option
- Open HMO
- Innovation Health: POS
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Innovation Health: Open Network Only Plus
- Aetna Elect Choice/ Open Access (POS)
- Innovation Health: POS Plus
- Aetna Managed Choice (POS)
- Innovation Health: PPO
- Aetna Open Choice (PPO)
- Innovation Health: Indemnity
- Aetna Traditional Choice (PPO)
- BlueChoice Open Access
- CFBCBS Blue Choice Opt Out Open Access
- HealthyBlue PPO
- CFBSBC Blue Preferred PPO
- Choice Fund PPO
- PPO and PPO Plus
- CIGNA EPO
- POS OA & OA Plus
- Network OA
- CIGNA HMO Open Access (OA)
- United Healthcare Choice
- Mamsi Life & Health (Indem./PPO)
- Optimum Choice Preferred (POS) & OCI Direct (HMO)
- M.D. IPA Preferred (POS)
- M.D. IPA (HMO)
- United Student Resources
- United Healthcare Choice Plus
- United Healthcare Select Plus (POS)
- United Healthcare Select HMO - EPO/NPP
- Tricare for Life (Medicare Supplemental Plan)
- Tricare Prime
- MedStar Select (MedStar Associates' Plan)
- MedStar Family Choice - Maryland Health Choice
- FIRST HEALTH
- Coventry Health Care National Network PPO
- First Health PPO
- Coventry of Delaware HMO/PPO
- Coventry Health Care of Virginia
- CIGNA Indemnity
- Great-West Healthcare POS/CIGNA
- CIGNA POS/Network POS
- CIGNA HMO & Network (HMO)
- CFBCBS (NCA) Indemnity
- CFBCBS Maryland Indemnity or PPO
- CFBCBS Maryland Point of Service Plan (MPOS)
- CFBCBS Blue Choice Opt Out Plus Open Access (POS)
- CFBCBS BlueChoice HMO
- Aetna Worker's Compensation Network
- Aetna Medicare Advantage HMO & PPO Plans
- Aetna Student Health Insurance
- Aetna Quality Point of Service (POS)
- Aetna Elect Choice/ EPO (Aetna Health Fund) Innovation Health: Network Only Plus
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