About Me
During my residency at Boston City Hospital, I became interested in how best to ensure that health goals are met in all children. After serving as chief resident, I took a position as a general pediatrician based at NYC Health + Hospitals/Bellevue. I was inspired by the research and advocacy work the Division of General Pediatrics was doing on poverty-related health disparities. As a clinician and educator at Bellevue beginning in the early 1990s, I noticed that the rates of obesity were rising among my patients, even for infants and young children. During my training I had learned more about poor growth and failure to thrive than excess weight gain, especially in younger children. So I began to think about why this was happening, and what we could do about it.
I learned that what I was seeing in my practice was part of a national trend of rising obesity, leading to increases in related health problems of diabetes and cardiovascular disease, and that it was also associated with other disparities related to poverty. With colleagues and mentors at NYU Langone, I developed one of the first obesity prevention programs to begin in pregnancy and infancy. For the past 15 years, I have run a research lab developing and expanding this program, which has enrolled over a thousand pregnant women and mothers. We have found that early prevention during the critical first thousand days (pregnancy through children aged 2) can lead to lasting improvements in lifestyle, diet, and weight outcomes. My work in obesity prevention and cardiovascular health promotion has been funded by the USDA, the NIH, and private foundations.
In addition to my prevention work, I realized the need for comprehensive, compassionate treatment for children and families living with obesity and nutrition-related health problems. I developed one of the first child/adolescent interdisciplinary weight management programs in the NYC Health + Hospitals system, and two years ago began a program for adolescents at NYU Langone. Both programs offer nutrition and lifestyle support, medications, and surgical approaches. I am passionate about providing supportive, nonstigmatizing care for one of the most common and difficult health problems families face.
Conditions and Treatments
Conditions
- adolescent obesity
- obesity
Treatments
- weight control
Credentials
Positions
- Clinical Associate Professor,
- Medical Director, Pediatric Healthy Weight Management Program
Board Certifications
- American Board of Pediatrics - Pediatrics, 1992
Education and Training
- Residency, Boston City Hospital, Pediatrics, 1992
- MD from Rutgers Biomedical and Health Sciences, 1987
Is this your profile?
Insurance Plans Accepted
This provider accepts the following insurance plans.
-
Aetna
- AETNA EPO (NYULH Employees)
- AETNA EPO (Sunset Park Employees)
- 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
-
Amida Care
- Amida Care Medicaid
-
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
-
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 (NYU Langone Suffolk 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/EPO Small Group
- New York Hotel Trades
-
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
-
Connecticare
- Connecticare Bridge
- Connecticare Commercial
-
Elderplan
- Elderplan
- Elderplan FIDA
- Elderplan Medicare Advantage Plan
-
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
-
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
-
First Health
- First Health PPO
-
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.
-
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
-
Hamaspik Choice
- Hamaspik Choice Medicare DSNP
-
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
-
Hotel Trades Council
- Hotel Trades Council
-
Local 1199
- Local 1199 - NYU Hospital Member Choice
- Local 1199 PPO
-
Magnacare
- Magnacare PPO
-
Medicaid of New Jersey - Molina
- Medicaid NJ/Molina
-
Medicaid of New York
- NYS Medicaid
-
Medicare
- Medicare Part A and B
- Medicare Part B
-
MetroPlusHealth
- MetroPlusHealth Bronze Plus Plan Exchange
- MetroPlusHealth Child Health Plus
- MetroPlusHealth Essential Plan 1 and 2
- MetroPlusHealth Essential Plan 3 and 4
- MetroPlusHealth Gold
- MetroPlusHealth Gold Plus Plan Exchange
- MetroPlusHealth Goldcare
- MetroPlusHealth Medicaid Managed Care
- MetroPlusHealth Medicare
- MetroPlusHealth Medplus Plan Exchange
- MetroPlusHealth Platinum Plus Plan Exchange
- MetroPlusHealth Silver Plus Plan Exchange
-
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
-
NYSHIP - The Empire Plan
- NYS Health Insurance Plan - The Empire Plan, Excelsior Plan, NY Student Employee Health Plan
-
Oxford
- Oxford Health Plans Freedom
- Oxford Health Plans Liberty
-
POMCO Insurance Company
- POMCO Insurance Company
-
Qualcare Inc.
- Qualcare Direct
-
Railroad Medicare
- Palmetto GBA Railroad Medicare
-
Sedgwick WTC
- World Trade Center - Sedgwick
-
Tricare
- TriWest
- Tricare
- US Family Health Plan
-
United Healthcare
- AARP Medicare Complete
- Bind Benefits inc
- Oxford Health Plans Medicare Advantage
- UMR
- UMR GEHA
- United Healthcare (NY University Care Plan)
- United Healthcare AARP
- United Healthcare All Savers
- United Healthcare Choice
- United Healthcare Choice (AMEX employees)
- United Healthcare Choice (Blackrock employees)
- United Healthcare Choice (CBS employees)
- United Healthcare Choice (Simon and Schuster)
- United Healthcare EPO
- United Healthcare EPO (NYU Langone Health Employees)
- United Healthcare EPO (Sunset Park 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 NYU Care (NYULH Employees)
- United Healthcare NYU Care (Sunset Park Employees)
- 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 Plus (Sunset Park 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)
-
VA Community Care Network
- VA CCN Optum
-
VNS Choice Advantage
- VNS Medicare Advantage
- VNS NY Choice Select Health
-
WTC Health Program
- NY Fire Department - WTC
- WTC Health Program
Mary J. Messito, MD does not accept insurance.
Locations and Appointments
Fink Children's Ambulatory Care Center
150 East 32nd Street, 2nd Floor, New York, NY 10016
Research Academic Contact
Academic office
Bellevue Hospital Center, 462 First Avenue
H Bldg, 8th Floor, 8 South 17
New York, NY 10016
Phone
Fax
Publications
-
Kim, Christina N; Messito, Mary Jo; Katzow, Michelle; Duh-Leong, Carol; Gross, Rachel S
Pediatrics. 2025 Apr 01;
-
Duh-Leong, Carol; Messito, Mary Jo; Kim, Leah; Cohen, David I; Betancourt, Jeanette; Ortiz, Robin; Astudillo, Jessica; Nagpal, Nikita; Katzow, Michelle W; Gross, Rachel S
Academic pediatrics. 2025 Mar ; 25(2):102582
-
Katzow, Michelle W; Messito, Mary Jo; Bancayan, Janneth; Kim, Christina N; Duh-Leong, Carol; Marcone, Alessandra L; Denny, Colleen; Scott, Marc A; Gross, Rachel S
Childhood obesity. 2025 Mar ; 21(2):157-167