About Me
For as long as I can remember, I was committed to life in the field of medicine. I was fortunate to have outstanding role models and teachers at all levels of my education, who inspired me to reach for lofty goals. I decided to specialize in nephrology because it provides me with the opportunity to translate research into clinical treatments to help people.
I see patients with a variety of kidney diseases, but have a special interest in treating people with diabetes, hypertension, chronic kidney disease, acute kidney injury, kidney stones, and all forms of electrolyte disturbances. I utilize all resources to successfully delay the natural progression of damaged kidneys.
When patients come to me, I take the time to address their individual concerns and effectively communicate treatment options. I collaborate with other specialists to streamline the care for our patients.
I conduct research to improve the diagnosis and outcomes for patients with hyponatremia. I have published several articles and reviews on this subject.
Conditions and Treatments
Conditions
- acid base disorder
- acute renal failure
- chronic renal failure
- gout
- high blood pressure
- high cholesterol level
- hyponatremia
- kidney failure
- kidney stones
Credentials
Positions
- Professor, Department of Medicine at NYU Grossman Long Island School of Medicine
Board Certifications
- American Board of Internal Medicine (Nephrology), 1976
- American Board of Internal Medicine - Internal Medicine, 1968
Education and Training
- Fellowship, Washington University - Barnes-Jewish Hospital, Medicine-Nephrology, 1970
- Residency, Mount Sinai Medical Center, Internal Medicine, 1967
- Residency, Washington University - Barnes-Jewish Hospital, Internal Medicine, 1963
- MD from Boston University, 1961
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Edit profileInsurance Plans Accepted
This provider accepts the following insurance plans.
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Aetna
- Aetna HMO
- Aetna Indemnity
- Aetna International
- Aetna Medicare Advantage
- Aetna Open Access EPO
- Aetna Open Access HMO
- Aetna POS
- Aetna POS (American Express Employer)
- Aetna PPO
- Aetna Signature Administrators PPO
- Aetna Student Plan
- Allied
- Chesterfield Resources Inc
- Christian Brothers Services
- CoreSource
- Nippon Life of America-Aetna
- Nippon Life-Aetna
- Starmark
- WellNet
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Anthem BCBS Health Plus
- BCBS Healthplus Essential Plan 1
- BCBS Healthplus Essential Plan 2
- BCBS Healthplus Essential Plan 3
- BCBS Healthplus Essential Plan 4
- BCBS Healthplus Gatekeeper exchange
- BCBS Healthplus Mediblue Advantage
- BCBS Healthplus NY Child Health Plus NY
- BCBS Healthplus NY Medicaid Managed Care NY
- BCBS Healthplus Special Needs
- Empire Mediblue Healthplus Dual
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Anthem Blue Cross Blue Shield
- Anthem BCBS CT PPO
- Anthem BCBS CT Pathway PPO
- BCBS Blue Access EPO Large Group
- BCBS Blue Access EPO Small Group
- BCBS Blue Access GEPO Small Group
- BCBS Blue Access PPO Large Group
- BCBS EPO
- BCBS EPO (BlackRock Employees)
- BCBS EPO (LICH Employees)
- BCBS EPO - Empire EPO (NYU Langone Employees)
- BCBS EPO - Empire EPO (Sunset Park/Family Health Center Employees)
- BCBS EPO - Empire NYU Care (NYU Langone Employees)
- BCBS EPO - Empire NYU Care (Sunset Park/Family Health Center Employees)
- BCBS Federal Program
- BCBS Florida Blue Care HMO
- BCBS Florida Blue Medicare PPO
- BCBS Florida Blue Options PPO
- BCBS Florida Blue Select
- BCBS Florida MyBlue HMO
- BCBS Florida Simply Blue
- BCBS Florida Traditional PPC
- BCBS HMO
- BCBS Indemnity
- BCBS Local 32BJ Employees
- BCBS Mediblue Medicare HMO
- BCBS Mediblue Medicare PPO
- BCBS Mediblue Select HMO/Extra HMO
- BCBS POS
- BCBS PPO
- BCBS PPO (BlackRock Employees)
- BCBS PPO (LICH Employees)
- BCBS PPO - Empire PPO (Sunset Park/Family Health Center Employees)
- BCBS PPO/EPO Small Group
- New York Hotel Trades
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Centerlight Healthcare
- CenterLight Healthcare DIRECT
- CenterLight Healthcare PACE
- CenterLight Healthcare Select
- Centerlight Pace Medicare HMO
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Cigna
- Apwu Health Plan
- Cigna - Humana
- Cigna Great West PPO
- Cigna HMO
- Cigna Indemnity
- Cigna Managed Care/POS
- Cigna Medicare Advantage
- Cigna NALC
- Cigna Open Access
- Cigna Open Access PPO
- Cigna Oscar
- Cigna PPO
- Cigna Premier Plus
- Great West HMO
- Kaiser Permanente
- MVP-Cigna Network
- Wellfleet-NYU Student
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Connecticare
- Connecticare Bridge
- Connecticare Commercial
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Emblem
- Emblem Select Care Bronze Small Group
- Emblem Select Care EPO
- Emblem Select Care Gold Small Group
- Emblem Select Care HMO
- Emblem Select Care PPO
- Emblem Select Care Platinum Small Group
- Emblem Select Care Silver Small Group
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Fidelis Care
- Ambetter Fidelis Care Bronze Exchange
- Ambetter Fidelis Care Catastrophic Cvg Exchange
- Ambetter Fidelis Care Gold Exchange
- Ambetter Fidelis Care Native American Exchange
- Ambetter Fidelis Care Platinum Exchange
- Ambetter Fidelis Care Silver Exchange
- Fidelis Care Child Health Plus
- Fidelis Care Medicaid Managed Care
- Fidelis Essential Plan 1
- Fidelis Essential Plan 2
- Fidelis Essential Plan 3
- Fidelis Essential Plan 4
- Wellcare by Fidelis Care Medicare
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First Health
- First Health PPO
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GHI
- American Plan Administrators
- GHI CBP (City of New York Employees)
- GHI Emblem Health EPO
- GHI Emblem Health PPO
- GHI HMO
- GHI HMO Medicare
- GHI Medicare PPO
- GHI Medicare Supplement
- GHI Network Access - Benefit Services of PA
- GHI Network Access - Humana
- GHI Network Access - Total Plan Concepts
- IUOE Local 14-14B
- Wlny-TV Inc.
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HIP
- Emblem Essential Plan 1
- Emblem Essential Plan 2
- Emblem Essential Plan 3
- Emblem Essential Plan 4
- HIP Access I
- HIP Access II
- HIP Bridge
- HIP Child Health Plus
- HIP EPO
- HIP HMO
- HIP Medicaid Enhanced Care
- HIP Medicare Supplement
- HIP POS
- HIP PPO
- HIP Prime Basic Exchange
- HIP Prime Bronze
- HIP Prime Bronze Exchange
- HIP Prime Catastrophic Exchange
- HIP Prime Gold
- HIP Prime Gold Exchange
- HIP Prime Platinum
- HIP Prime Platinum Exchange
- HIP Prime Silver
- HIP Prime Silver Exchange
- HIP VIP Medicare Bold
- HIP VIP Medicare Prime
- Vytra HMO
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Hamaspik Choice
- Hamaspik Choice Medicare DSNP
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Healthfirst
- Health And Recovery Plan (Harp)
- Healthfirst Bronze Leaf Exchange
- Healthfirst Bronze Total, Pro, Plus EPO
- Healthfirst Child Health Plus
- Healthfirst Essential Plan 1 & 2
- Healthfirst Essential Plan 3 & 4
- Healthfirst Gold Leaf Exchange
- Healthfirst Gold Total, Pro, Plus EPO
- Healthfirst Green Leaf Exchange
- Healthfirst Medicaid
- Healthfirst Medicare
- Healthfirst Medicare/NYU Risk
- Healthfirst Personal Wellness Plan
- Healthfirst Platinum Leaf Exchange
- Healthfirst Platinum Total, Pro, Plus EPO
- Healthfirst Silver Leaf Exchange
- Healthfirst Silver Total, Pro, Plus EPO
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Humana
- Humana Medicare Advantage
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Local 1199
- Local 1199 - NYU Hospital Member Choice
- Local 1199 PPO
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Longevity Health Plan
- Longevity Health Plan Medicare
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Magnacare
- Magnacare PPO
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Medicaid of New York
- NYS Medicaid
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Medicare
- Medicare Part A and B
- Medicare Part B
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Multiplan
- AXA Assistance USA
- Administrative Concepts
- Beech Street PPO
- Diversified Administration Corporation
- Fiserv Health
- GEHA
- Global Excel
- Global Health
- Guardian Life Insurance Co Of America
- Health Net Of California
- Health Republic Of NJ
- Insurance Design Administrators
- Kaiser Foundation
- Kaiser Permanente
- Meritain Health
- Multiplan PPO
- Multiplan-Capital Dist Phys Health
- Mutual Of Omaha
- Nippon Life Ins Co
- PHCS
- Professional Benefit Admin
- Qualcare Inc
- Screen Actors Guild
- Teamsters Allied Benefits
- US Life Insurance Company
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NYSHIP - The Empire Plan
- NYS Health Insurance Plan - The Empire Plan, Excelsior Plan, NY Student Employee Health Plan
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Oxford
- Oxford Health Plans Freedom
- Oxford Health Plans Liberty
- Oxford Metro
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POMCO Insurance Company
- POMCO Insurance Company
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Partners Health Plan Inc
- Partners Health Plan FIDA
- Partners Health Plan Medicaid
- Partners Health Plan Medicare
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Qualcare Inc.
- Qualcare Direct
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Railroad Medicare
- Palmetto GBA Railroad Medicare
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Sedgwick WTC
- World Trade Center - Sedgwick
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Tricare
- TriWest
- Tricare
- US Family Health Plan
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United Healthcare
- AARP Medicare Complete
- Bind Benefits inc
- Oxford Health Plans Medicare Advantage
- UMR
- United Health Care Charter
- United Healthcare (NY University Care Plan)
- United Healthcare AARP
- United Healthcare All Savers
- United Healthcare CareCore
- United Healthcare Choice
- United Healthcare Choice (AMEX employees)
- United Healthcare Choice (Blackrock employees)
- United Healthcare Choice (CBS employees)
- United Healthcare Choice (Simon
- United Healthcare Compass Exchange
- United Healthcare EPO
- United Healthcare EPO (NYU Langone Health Employees)
- United Healthcare Golden Rule Insurance
- United Healthcare HMO
- United Healthcare Healthscope
- United Healthcare Indemnity
- United Healthcare Indemnity (NYU Langone Health Employees)
- United Healthcare Medicare
- United Healthcare Navigate
- United Healthcare Nexus
- United Healthcare Nexus (Amex Employees)
- United Healthcare POS
- United Healthcare PPO
- United Healthcare Plus (NYU Langone Health Employees)
- United Healthcare Student Resources
- United Healthcare Student Resources (NYU)
- United Healthcare Value, Advantage and HDHP (New York University employees)
- UnitedHealthcare Choice (NY Power Authority Employees)
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VA Community Care Network
- VA CCN Optum
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VNS Choice Advantage
- VNS Medicare Advantage
- VNS NY Choice Select Health
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Village Care
- VillageCare
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WTC Health Program
- NY Fire Department - WTC
- WTC Health Program
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Wellcare
- WellCare Medicare
John K. Maesaka, MD does not accept insurance.
Locations and Appointments
Video Visits
See a doctor from your mobile device instead of an in-person appointment. Learn more about video visits.
Schedule a Video VisitNYU Langone Nephrology Associates-Mineola
200 Old Country Road, Suite 370, Mineola, NY 11501
Publications
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Maesaka, John K; Imbriano, Louis J; Grant, Candace; Miyawaki, Nobuyuki
American journal of the medical sciences. 2024 Nov ; 368(5):538-543
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Maesaka, John K; Imbriano, Louis J; Grant, Candace; Miyawaki, Nobuyuki
Kidney research and clinical practice. 2024 Jan ; 43(1):33-46
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Johnson, Richard J; Lee, S M Kurt; Sánchez-Lozada, Laura G; Kanbay, Mehmet; Bansal, Anip; Tolan, Dean R; Bjornstad, Petter; Lanaspa, Miguel A; Maesaka, John
American journal of kidney diseases. 2023 Jul ; 82(1):105-112