Joshua Schwimmer, MD, Nephrology, New York, NY, Lenox Hill Hospital

JoshuaAdamSchwimmerMDFACP, FASN

Nephrology New York, NY

Acute Renal Failure, Chronic Renal Failure & Dialysis, Hypertension

Nephrologist and Internist at Lenox Hill Hospital and Northwell Health |

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  • Dr. Joshua Schwimmer is a board-certified nephrologist and internal medicine doctor based in Midtown Manhattan, New York City. He is a full-time faculty member at Lenox Hill Hospital and an Assistant Professor of Medicine at the Hofstra Northwell School of Medicine.

    An award-winning teacher, Dr. Schwimmer trained in nephrology and internal medicine at New York-Presbyterian Hospital, the Columbia University College of Physicians & Surgeons, Strong Memorial Hospital, and the University of Rochester Medical Center. With over 15 years of clinical experience in nephrology and general medicine, Dr. Schwimmer receives outstanding reviews from patients of all ages. In practice with Dr. Mark Gardenswartz, Dr. Schwimmer sees patients at his East 59th Street office and hospitalized patients at Lenox Hill Hospital. As a "doctor's doctor", Dr. Schwimmer is trusted to provide care to many physicians and their families. In addition, Dr. Schwimmer is a health technology consultant and a longstanding member of Doximity's Medical Advisory Board.

Skills & Expertise

  • Diabetes mellitus, Hypertension, Dialysis, Chronic Kidney Failure, Acid-base imbalance, Hyponatremia, Glomerular disease, Focal segmental glomerulosclerosis, Hyperthyroidism, Thrombotic microangiopathy, Kidney and ureteral stones, Acute renal failure, Renal Artery Obstruction, Nephrology, Nephrotic syndromes, Refractory hypotension, Diabetic nephropathy, Blogging, General nephrology, Renovascular hypertension, Eculizumab (Soliris), Acth (Acthar Gel), Atypical hemolytic uremic syndrome, Critical care medicine, Interstitial renal disease, Inpatient nephrology, Outpatient nephrology, Urinary tract infections, Chronic kidney disease, Hemodialysis, Continuous renal replacement therapy, Expert testimony, Medicolegal expertise

Education & Training

  • New York Presbyterian Hospital -  Columbia Campus
    New York Presbyterian Hospital - Columbia CampusFELLOWSHIP
  • University of Rochester
    University of RochesterRESIDENCY
  • University of Rochester School of Medicine and Dentistry
    University of Rochester School of Medicine and DentistryMEDICAL_SCHOOL
  • Wesleyan UniversityOTHER_TRAINING

Certifications & Licensure

  • FL State Medical License
    FL State Medical License 2015 - 2021
  • NY State Medical License
    NY State Medical License 2000 - 2021
  • American Board of Internal Medicine Internal Medicine
  • American Board of Internal Medicine Nephrology

Awards, Honors, & Recognition

  • Fellow of the American College of Physicians 2005
  • Fellow of the American Society of Nephrology 2004
  • Clinical Fellowship Award Kidney and Urology Foundation of America, 2002
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Publications & Presentations


Journal Articles

  • Lithium toxicity: a review of pathophysiology, treatment, and prognosis  
    Altschul E, Grossman C, Dougherty R, Gaikwad R, Nguyen V, Schwimmer J, Merker E, Mandel S, Practical Neurology, 1/1/2016
  • Neurofibromatosis type 1-associated hypertension secondary to coarctation of the thoracic aorta  
    Schwimmer JA, Clinical Kidney Journal, 2014
  • Cytomegalovirus-induced collapsing focal segmental glomerulosclerosis  
    Schwimmer JA, Clinical Kidney Journal, 2013
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Books/Book Chapters


  • Spurious High Anion Gap Acidosis Associated with Monoclonal Gammopathy.
    Selzer D, Eldridge JB, Patel S, Schwimmer JA, Rosenstock, JL, Journal of the American Society of Nephrology, ASN (American Society of Nephrology) Annual Meeting, 1/1/2016
  • Acute Interstitial Nephritis Associated with Probiotic Use.
    Win S, Mavani GP, Schwimmer, JA, Journal of the American Society of Nephrology, ASN (American Society of Nephrology) Annual Meeting, 1/1/2015
  • An Uncommon Presentation of a Rare Disease: Mesangial Proliferative Glomerulonephritis with Monoclonal IgG Deposits ("Nasr Disease") in a Young Woman.
    Sultana T, Schwimmer JA, ASN (American Society of Nephrology) Annual Meeting, 1/1/2014
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  • "Acute Renal Failure and Renal Replacement Therapies," 
  • "Atypical Hemolytic Uremic Syndrome, Diagnosis and Therapy" 
  • "The Urinalysis," 
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  • Nephrologists using social media connect with far-flung colleagues, health care consumers. 
    Brande V., Nephrology Times
  • "The Efficient MD" offers practice tips and tools (interview). 
    Genes N., Medscape
  • Tech Medicine. 
    Schwimmer J., (2007-2009)
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Hospital Affiliations

Industry Relationships

  • Consultant, Ridgetop Research2013 - Present
  • Consultant and Lecturer, Alexion Pharmaceuticals2012 - Present
  • Medical Advisor, Doximity2012 - Present
  • Specialist, Sherpaa2012 - Present
  • Consultant, Gerson Lehrman Group2005 - Present
  • Mentor, Rock Health2012 - 2015
  • Consultant and Blogger, HealthlineWriter of the Tech Medicine blog.2007 - 2008
  • Speaker, Ortho Biotech2006 - 2008
  • Consultant, Amgen2004 - 2004