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Our   Care   Team


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OADc   CARE   TEAM

OADC takes pride in employing extremely qualified doctors and nurses.  Dr. Zak Messieha spent 21 years teaching anesthesiology to dental and medical students and residents at the University of Illinois at Chicago.  He is also very active in conducting research to better enhance the medications and techniques used in the practice of anesthesiology.  All of the nurses have experience in pediatric care, critical care, acute care, emergency care and are proficient with pediatric and adult patients.  All clinical staff is certified in ACLS, PALS, and BLS.  In addition, Dr. Zak Messieha is a certified instructor for ACLS and PALS.  OADC care team offers patients outstanding, professional care.


Dr.   Zak   Messieha

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Dentist  Anesthesi0logist


Diora   Dalimova,  RN, MSN​

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Registered   Nurse



Jodie   Chester ,  RN

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Registered   Nurse


Nan   Messieha

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Office Manager



Hillary   Bassali,  RN

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Registered   Nurse


Patrice   Perry

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Administrative   Assistant



Our care team is continually growing, read on to learn more about our experienced providers :​

Dr.  Zak   MessiehA

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Click the image to learn more about Dr. Messieha
Patients have a right to know who is treating them and their credentials.
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  • Board Certified Dentist Anesthesiologist
  • Fellow International College of Dentists
  • Fellow American College of Dentists
  • Professor of anesthesiology University of Illinois at Chicago (21 Years)
  • Member of American Society of Dentist Anesthesiologists
  • Founder of the first mobile dental anesthesiology practice accredited by the Accreditation Association of Ambulatory Health Care, Inc. ​
  • Excellence in Patient Care
  • Practices with the Highest Safety Standards​


    Interested   IN   Joining   the   OADC   CARE   Team? 

    Fill out the form below and a member of our care team will be in touch: 
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Jodie Chester, RN

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​Jodie Chester received her Bachelors Degree in Nursing from University of Evansville in Evansville, Indiana. She is a licensed Registered Nurse (RN) in both Illinois and Indiana.  Jodie has worked in Critical Care for the last 21 years. She is currently on staff at Good Samaritan Hospital where she primarily works with Open Heart Surgery patients in the Critical Care Unit. Jodie is a preceptor and mentor for other staff, and is a member of the Education Team for the unit.

Jodie is involved in many volunteer activities as well. She is active in High School District 87, coordinating health related events for high school students. Jodie also volunteers with Young Hearts 4 Life (a cardiac screening program for high school students).  This has earned her nomination as one of the top five finalists for 2012 Excellence in Nursing Award.

Jodie is certified by the American Heart Association in CPR, Advanced Cardiac Life Support (ACLS) and Pediatric Advanced Life Support (PALS).

She joined the OADC team in March 2010.


Hillary   Bassali,   RN

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​​Hillary Bassali is a graduate of Georgetown University and earned a Bachelor of Science in Nursing. She has 25 years of experience working in a variety of nursing settings. She has worked in critical care for over 15 years. Hillary has been certified in case management, IV therapy, ACLS, PALS, and BLS. She has been licensed and practiced in the states of New York, New Jersey, Illinois, Indiana and the District of Colombia. In her free time, Hillary enjoys spending time with her family, traveling, volunteering in her church, and practicing taekwondo.

​Hillary joined the OADC team in March 2022. 


Diora   Dalimova, RN, MSN

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Diora Dalimova is a dedicated and adaptable nursing professional with a Bachelor of Science in Nursing from the University of Massachusetts Boston and a Master’s degree in Nursing Informatics from Chamberlain University. Since beginning her career in 2018, she has a diverse clinical background, working in transplant, neurology, and medical-surgical units, as well as spending a year as a travel nurse, which allowed her to gain valuable experience in various healthcare settings. In May 2024, Diora joined OADC, where she truly enjoys collaborating and traveling to different dental offices to provide exceptional care to our patients, ensuring their comfort and safety during procedures. Outside of work, she spends most of her time with her husband and their son. They enjoy cooking together and having movie nights.

Diora is certified by the American Heart Association in CPR, Advanced Cardiac Life Support (ACLS) and Pediatric Advanced Life Support (PALS).


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Let us fulfill your anesthesia needs

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Hours

M-F: 9 am - 5 pm CST
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Telephone

(630)620-9199
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Email

drzak@officeanesthesiology.com
Imagine Comfort

© 2003-2025 - Office Anesthesiology and Dental Consultants, PC
  • Home
    • What is Accreditation?
    • Doctors: Why Office-Based Anesthesia
    • Patients: Why Office-Based Anesthesia
  • About Us
    • Dr. Zak Messieha
    • Our Care Team
  • Services
  • Our Patients
    • OADC Policies
    • Forms
    • Fees/Insurance
    • Patient Rights & Responsibilities
    • Grievance Policy
  • Providers
    • Getting Started/FAQ's
    • Referral Form
  • Testimonials
    • Patient Testimonials
    • Surgical and Dental Provider Testimonials
  • Media
  • Contact Us