Keiko Iwahara Greenberg, MD| Nephrology | MedStar Health
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Keiko Iwahara Greenberg

Keiko Iwahara Greenberg, MD
Provider is directly employed by MedStar Health

5 out of 5 (405 reviews)

Specialties: Nephrology

Languages: English

877-625-1483

Clinical areas of focus

  • Blood Urea Nitrogen (BUN) Test
  • Chronic Kidney Disease
  • Creatinine Clearance Test
  • Diabetic Nephropathy
  • Dialysis
  • Endstage Renal Disease
  • Estimated Glomerular Filtration Rate
  • Kidney Function Test
  • Laparoscopic Kidney Biopsy
  • Nephrotic Syndrome
  • Renal Insufficiency
  • Transplanted Kidney Failure
  • Urinary Protein Test
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Conditions and procedures

Conditions I treat

  • Cardiorenal Syndrome
  • Chronic Kidney Disease
  • Congenital Malformation Syndromes Affecting Multiple Systems
  • Contracted Kidney
  • Diabetic Nephropathy
  • Disorders Of Carbohydrate Metabolism
  • Disorders Of Renal Tubular Function
  • Endstage Renal Disease
  • Fibromuscular Dysplasia
  • Gestational Edema
  • Hyperaldosteronism
  • Hyperparathyroidism
  • Hypertension
  • Hypertensive Nephrosclerosis
  • Kidney Injury
  • Kidney Stones
  • Long Term Drug Therapy
  • Lupus Nephritis
  • Medical Management Of Chronic Kidney Disease
  • Membranous Nephropathy
  • Nephrotic Syndrome
  • Nephrotic Syndrome Due To Focal Segmental Glomerulosclerosis
  • Obstructive And Reflux Uropathy
  • Personal History Of Diseases And Conditions
  • Proteinuria
  • Recurrent Hematuria
  • Renal Agenesis And Reduction Defects Of Kidney
  • Renal Artery Stenosis
  • Renal Insufficiency
  • Secondary Hypertension
  • Sickle Cell Disease Of The Kidney
  • Small Kidney
  • Systemic Connective Tissue Involvement
  • Transplanted Kidney Failure
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Procedures I perform

  • Blood Urea Nitrogen (BUN) Test
  • Continuous Veno-Venous Hemofiltration
  • Creatinine Clearance Test
  • Dialysis
  • Estimated Glomerular Filtration Rate
  • Hemoperfusion For Toxin Removal
  • Kidney Function Test
  • Kidney Pancreas Transplant Evaluation
  • Laparoscopic Kidney Biopsy
  • Limited Retroperitoneal Ultrasound
  • Nephrotic Syndrome Treatment
  • Pancreatic Disease Management
  • Peritoneal Cavity Irrigation With Dialysate
  • Renal Biopsy
  • Renal Transplant
  • Urinary Filtration Performance
  • Urinary Protein Test
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Practice locations

Distance from Change Location Enter your Location

3800 Reservoir Rd NW
Pasquerilla Healthcare Center
Washington, DC, 20007

202-444-9183
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miles away

Fax 877-625-1483

Insurance

This list represents the major payors accepted by MedStar Health.

NOTE: Payor contracts change and not all plans associated with a payor may be covered. Payors may offer multiple plans. If you have a question related to your insurance, please contact your insurance plan directly. Contact information is located on your health insurance ID card.

*Denotes limited participation. Specific providers and practices may NOT be participating. Please contact your insurance plan directly.

  • List of insurance plans we accept
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Cigna Health Care
    • Kaiser Permanente*
    • MedStar Select (Administered by CareFirst)
    • United HealthCare
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Healthspring
    • Humana
    • Medicare & Railroad Medicare
    • United HealthCare
    • Aetna Better Health of Maryland *
    • Medical Assistance/Medicaid
    • MedStar Family Choice MD
    • Priority Partners *
    • United HealthCare Community Health Plan MD
    • Wellpoint MD
    • AmeriHealth Caritas
    • Health Services For Children With Special Needs (HSCSN)
    • Medical Assistance/Medicaid
    • MedStar Family Choice DC
    • Johns Hopkins Employer Health Programs *
    • Johns Hopkins US Family Health Plan *
    • MultiPlan
    • Private Healthcare Systems
    • Tricare/Humana Military
    • VA Community Care Network (VACCN)

Education

Fellowship: Johns Hopkins University School of Medicine (2015)

Internship: Johns Hopkins University School of Medicine (2010)

Medical School: University of Virginia School of Medicine (2009)

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
  • Jun 8, 2026

    The doctor was extremely knowledgeable,treated me with care and included me in the conversation about my health.

  • Jun 2, 2026

    I can not say enough good things about Dr Greenberg. She is an outstanding doctor, fantastic communicator, with encyclopedic medical knowledge. My trust in her judgement and advice is marrow deep. She is a bright star and should be treated as such.

  • Apr 21, 2026

    Comprehensive Explanations