Darling Agnet Ruiz Cerrato, MD MS| Critical Care Medicine, Pulmonary Medicine | MedStar Health
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Darling Agnet Ruiz Cerrato

Darling Agnet Ruiz Cerrato, MD MS
Provider is directly employed by MedStar Health

4.8 out of 5 (99 reviews)

Specialties: Critical Care Medicine, Pulmonary Medicine

Languages: English, Spanish

About me

As a Board Certified/Board eligible critical care physician, all conditions requiring intensive care in the medical, surgical, or neurosciences ICU are treated.

About the Provider

Darling Ruiz, MD, is an attending pulmonary and critical care physician at MedStar Washington Hospital Center. She specializes in the diagnosis and treatment of ailments and illnesses of the lungs, including asthma, COPD, interstitial lung disease, and unknown causes of shortness of breath and cough. Dr. Ruiz uses a wide range of diagnostic testing in her practice, including bronchoscopy, endobronchial ultrasound, and transbronchial needle aspiration. Her clinical interests include evaluation and management of interstitial lung disease, the use of endobronchial ultrasound for lung cancer screening and staging, and treating patients with COPD, asthma, and sarcoidosis.

Dr. Ruiz received her medical degree from the Universidad Nacional Autónoma de Nicaragua in Managua, Nicaragua. Dr. Ruiz then served as an attending general practitioner at Matron Roberts Polyclinic II in Belize City, Belize before joining Saint Agnes Hospital in Baltimore, MD for a three-year internal medicine residency, where she served as Chief Resident and was named Intern of the Year for 2013-2014. Dr. Ruiz completed a specialty fellowship in pulmonary and critical care at MedStar Washington Hospital Center, where she also served as Chief Fellow. She is a member of the American Thoracic Society and the American College of Chest Physicians.

Dr. Ruiz is fluent in Spanish. 

Philosophy of Care

“My goal is to not only improve the health of my patients but to improve their quality of life. I follow and implement best practices and guidelines, heavily taking into consideration the preferences, priorities, and treatment goals of my patients. Collaborating with my patients is important to me. I take the time to practice clear communication with my patients so that they fully understand their diagnosis and treatment options and are therefore able to make informed decisions regarding their care.”

Conditions and procedures

Conditions I treat

  • Asthma
  • Chronic Cough
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Dyspnea
  • Emphysema
  • Hypoxia
  • Pneumonia
  • Pneumothorax
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Procedures I perform

  • Bronchoscopy
  • Lung Cancer Screening
  • Pulmonary Embolism
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Practice locations

Distance from Change Location Enter your Location

110 Irving St NW
Rm 1A-50B
Washington, DC, 20010

202-877-0333
Get Directions

miles away

Fax 202-877-0341

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.

  • List of insurance plans we accept
    • CareFirst (NCA) Indemnity
    • Advantra Platinum (PPO)
    • Amerigroup DC Alliance
    • Johns Hopkins Advantage MD PLUS PPO
    • MedStar Family Choice - Maryland Health Choice
    • Aetna Elect Choice/ Open Access (POS)
    • Coventry of Delaware HMO/PPO
    • HumanaChoice PPO
    • BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
    • CareFirst Blue Choice Opt Out Open Access
    • CareFirst Administrators
    • CIGNA Connect EPO
    • Aetna Advantage 5750
    • DC/MD SHOP QHP Small Business Plans
    • Anthem BCBS of VA Key Care POS/PPO/Indemnity
    • Coventry Health Care of Virginia
    • Kaiser Maryland Medicaid MCO
    • Amerigroup DC Healthy Families
    • M.D. IPA Preferred (POS)
    • Mamsi Life & Health (Indem./PPO) Cardiac Global
    • Humana Medicare Advantage - HMO Open Access
    • United Healthcare Select HMO - EPO/NPP
    • Aetna Open Choice (PPO)
    • Blue Choice Advantage
    • Core Essential (HMO)
    • Aetna Advantage 6350PD
    • HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
    • Johns Hopkins Advantage MD HMO
    • M.D. IPA (HMO)
    • OCI Direct (HMO)
    • IH-Open HMO Option
    • Network OA
    • United Healthcare Choice
    • Optimum Choice Preferred (POS)
    • IH-Open Network Only Plus
    • AmeriHealth Caritas DC Healthcare Alliance
    • Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
    • Aetna VA Exchange
    • Tricare Reserve Select
    • Johns Hopkins Advantage MD PPO
    • Anthem BCBS of VA HealthKeepers (POS & POS OA)
    • MedStar Family Choice DC Healthy Families
    • Lasso Healthcare - Medicare Medical Savings Account
    • Anthem BCBS Medi Blue Plus
    • Cigna True Choice Medicare (PPO)
    • Anthem BCBS of VA HealthKeepers (HMO)
    • POS OA
    • Humana Gold Plus HMO
    • Alterwood Advanatge HMO & DSNP Plans
    • Aetna Classic 3500
    • Aetna Premier 200PD
    • IH-Open POS Plus
    • Choice Fund PPO
    • MedStar Family Choice DC Healthcare Alliance
    • Great-West Healthcare POS/CIGNA
    • Magellan Complete Care of VA - VA Medicaid MCO
    • IH-POS Plus
    • United Healthcare Options (PPO)
    • Aetna Better Health of VA
    • CareFirst Group Medicare Advantage
    • TRICARE for Life East
    • WellPoint Maryland - Maryland Health Choice
    • CareFirst Blue Card Program
    • Choice POS
    • CIGNA HMO & Network (HMO)
    • Kaiser Permanente Select - Added Choice
    • Erickson Advantage Plans
    • Select HMO/HealthFund/Health Network
    • IH-Open HMO
    • IH-Open POS II
    • Aetna Medicare Advantage HMO & PPO Plans
    • Anthem Federal Employee Program Standard
    • Aetna Signature Administrator PPO/TPA
    • Aetna Worker's Compensation Network
    • First Health PPO
    • TriWest Healthcare Alliance
    • Aetna Managed Choice (POS)
    • United Healthcare Choice Cardiac Global
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • United HealthCare Community Plan - Maryland Health Choice Program
    • Mamsi Life & Health (Indem./PPO)
    • United Healthcare Community Plan - VA Medicaid MCO
    • United Healthcare Select HMO-EPO/NPP Cardiac Global
    • Kaiser Permanente Medicare Advantage Signature and Select
    • Kaiser Permanente Signature - Added Choice
    • AMERIVANTAGE/Amerigroup Community Care
    • CareFirst BlueCross BlueShield Advantage Core/Enhanced
    • Kaiser Permanente Select Cardiac Global
    • Aetna Traditional Choice (PPO)
    • Beech Street PPO
    • Choice Care Network/HUMANA (PPO)
    • UnitedHealthcare Medicare Adv. Special Needs Plans
    • IH-HMO
    • IH-PPO
    • Aetna Better Health of MD
    • BlueChoice Open Access
    • CIGNA Indemnity
    • BCBS Out-of-State Medicare Plans (Blue Advantage)
    • CareFirst Maryland Indemnity or PPO
    • Cigna TotalCare (HMO D-SNP)
    • UnitedHealthcare Medicare Advantage DSNP District of Columbia
    • Aetna Managed Choice Open Access (POS)
    • CIGNA HMO Open Access
    • Employee Health Plan
    • Humana Medicare Advantage - PPO
    • TRICARE East Select
    • CareFirst Maryland Point of Service Plan
    • Kaiser Permanente Select
    • Sentara Health
    • Optima Family Care MCO - VA Medicaid MCO
    • Aetna Classic 5000
    • HealthyBlue PPO
    • United Healthcare Select Plus (POS)
    • Navigate
    • Medicare FFS
    • Kaiser Permanente Flexible Choice POS Cardiac Global
    • Cigna Preferred Medicare (HMO)
    • Cigna Achieve Medicare (HMO C-SNP)
    • Anthem BCBS Medi Blue SNP
    • CareFirst MedStar PPO
    • MD IPA (HMO) & MD IPA Preferred Cardiac Global
    • CareFirst Community Health Plan of MD
    • TRICARE East Prime
    • Police and Fire Clinic
    • Choice POS II Open Access
    • CIGNA PPO
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • United Healthcare Navigate Cardiac Global
    • IH-Indemnity
    • IH-Network Only Plus
    • CareFirst Federal Employee Program (Std. & Basic PPO)
    • Veterans Affairs Community Care Network
    • IH-Open EPO Plus
    • Anthem Federal Employee Program Basic
    • Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
    • Kaiser Permanente Medicare Plus
    • Medicare Direct
    • AmeriHealth Caritas DC Healthy Families
    • Options PPO Cardiac Global
    • IH-POS
    • Anthem BCBS of VA HealthKeepers Plus
    • First Health PPO
    • Geisinger Medicare Advantage
    • Health Services for Children with Special Needs
    • Medicare Advantage - Advantra Value (PPO)
    • HumanaChoice Honor's plan PPO
    • UHC Group Medicare Advantage Plans (HMO, POS, PPO)
    • Priority Partners - Maryland Health Choice
    • United Student Resources
    • CareFirst FEP Blue Focus
    • OA Plus
    • CIGNA EPO
    • Aetna HMO
    • United Medicare Private Fee-for-Service (PFFS) plans
    • Healthy Blue (HMO, POS)
    • Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
    • IH-EPO Plus
    • Private Health Care Systems (PPO)
    • Anthem BCBS Medi Blue Dual Adv
    • CareFirst NASCO
    • UHC Passport
    • Aetna Advantage 6350
    • CareFirst Blue Choice Opt Out Plus Open Access (POS)
    • HighMark
    • CareFirst BlueChoice HMO
    • Private Fee-for-Service Plans (PFFS)
    • CIGNA SureFit (HMO)
    • Uniformed Services Family Health Plan
    • CareFirst MedStar Select PPO
    • UnitedHealthcare Individual Exchange Plans
    • Aetna Medicare Advantage PFFS Plan
    • MultiPlan, Inc
    • NYC Medicare Advantage Plus
    • CareFirst Dual Prime HMO-SNP
    • Aetna Quality Point of Service (POS)
    • CIGNA PPO Plus
    • United Healthcare Choice Plus Cardiac Global
    • Cigna Alliance Medicare (HMO)
    • Jai Medical Systems - Maryland Health Choice
    • Optimum Choice
    • Maryland Physicians Care MCO
    • Aetna Student Health Insurance
    • Coventry Health Care National Network PPO
    • UnitedHealthcare and AARP Medicare Complete Plans
    • Cigna True Choice Plus Medicare (PPO)
    • Kaiser Permaenete Signature - Added Choice Cardiac Global
    • Kaiser Permanente Flexible Choice 3-tier POS
    • Kaiser Permanente HMO Plus and DHMO Plus Member
    • United Healthcare Choice Plus
    • Choice POS II
    • Aetna Basic
    • CareFirst EPO
    • Aetna Classic 5000PD
    • CareFirst Blue Preferred PPO
    • CIGNA POS/Network POS
    • Kaiser Permanente Signature

Education

Board Certification: American Board of Internal Medicine, Pulmonary Disease

Board Certification: American Board of Internal Medicine, Internal Medicine

Board Certification: American Board of Internal Medicine, Critical Care Medicine

Fellowship: MedStar Washington Hospital Center (2020)

Residency: Ascension Maryland Saint Agnes Hospital (2017)

Graduate: Universidad de Cadiz (2008)

Medical School: Universidad Nacional Autonoma Nicaragua (2007)

Hospital affiliations

Ratings and reviews

  • Explanations the care provider gave you about your problem or condition

    4.8
  • Extent to which the care provider listened to you

    4.9
  • Care provider’s discussion of any proposed treatment (options, risks, benefits, etc.)

    4.9
  • Provider included you in decisions

    4.8
  • Concern the care provider showed for your questions or worries

    4.8
  • Likelihood of recommending this care provider to others

    4.8
  • May 9, 2026

    Good example

  • Feb 22, 2026

    She was very attentive and answered my questions.

  • Feb 12, 2026

    Good