About the HR Office of Immigration Services

Case Status and Referral Follow-ups
If you would like to know the status of a case that is pending at this office, we recommend that you call or email the OIS staff member that is handling your case. If you do not know who is handling your case, an OIS representative can help direct your call to your case manager.

Schedule an Appointment to Visit the Office
We recommend that you schedule an appointment if you need to speak with an OIS Specialist. This allows us time to prepare for your visit and, if appropriate, to have your documents ready when you arrive. Office hours are Monday through Friday from 8:00 AM to 5:00 PM.

Walk-ins are always welcome.  

Contact Information:

OU Health Sciences Center & Tulsa Campuses
865 Research Parkway, Suite 270
Oklahoma City, OK 73104 
Phone : (405)271-2189
Fax: (405)271-3925

OU Norman Campus
905 Asp Ave, NEL Building, Room # 208
Norman, OK 73019 
Phone: (405)325-5790
Fax: (405)325-7354

The Office of Immigration Services (OIS) is part of Human Resources. The OIS staff assists the academic and administrative departments at the University of Oklahoma in obtaining and maintaining the appropriate immigration status for the employment of international faculty, scholars, and staff. 


Nima Zecavati, JD, MPH, RO

Immigration Attorney - Legal Counsel

Director - Human Resources

As head of the OIS, Mr. Zecavati is responsible for supervising employment based immigration matters for all five campuses governed by the University of Oklahoma Board of Regents. Mr. Zecavati received his Bachelor of Arts degree with honors from the University of Central Oklahoma. He earned his Master of Public Health in Health Administration and Policy from the University of Oklahoma Health Sciences Center, and was a Merit Scholar at Oklahoma City University where he earned his Juris Doctorate.

Mr. Zecavati has experience in a variety of areas of immigration law including employment and family based immigration law. He is a member of numerous professional associations including the Oklahoma Bar Association, the American Immigration Lawyers Association, Young Lawyers Association, American Bar Association and College and University Professional Association for Human Resources. Mr. Zecavati is licensed to practice law in the Western District of Oklahoma Federal Court and The Oklahoma State Supreme Court.


Suk-Han Chu (Isabel), M.Ed., M.A.

Lead Immigration Analyst / ARO

Ms. Chu advises OU-Norman and OU-Tulsa international faculty, staff, and campus departments on employment based immigration regulations including travel, employment, and maintenance of status, and provides integral support in H-1B,  E-3, TN, Conrad waivers (OU-Tulsa), Permanent Labor Certification, and I-140 Immigrant Visa cases. She holds two Master's degrees, the first in School Guidance and Counseling from Hong Kong Polytechnic University and the second in Education (Community Counseling) from DePaul University.

Maria Engles
Senior Immigration Analyst & ARO

Ms. Engles advises OUHSC, Rogers State University, Cameron University, and Oklahoma City Community College international faculty, staff, and campus departments on employment-based immigration regulations including travel, employment, and maintenance of status. Ms. Engles provides support in H-1B, E-3, TN, and I-140 Immigrant Visa cases. She holds a Bachelor's degree in International Security Studies from the University of Oklahoma.

Adam Telfer

Immigration Specialist / ARO

Mr. Telfer advises the OUHSC campus regarding J-1 Research Scholar regulations including travel, employment, and maintenance of status. He is an Alternate Responsible Officer (ARO) and authorized by the Department of State to issue the DS-2019 to foreign national scholars. Mr. Telfer earned a Bachelor's degree in History from The University of California, Berkeley. 

Jenny (Lu) Machette
Immigration Specialist / ARO

Ms. Machette advises the OU Norman campus regarding J-1 Research Scholar regulations including travel, employment, and maintenance of status. She is an Alternate Responsible Officer (ARO) and authorized by the Department of State to issue the DS-2019 to foreign national scholars.  Ms. Machette earned a Bachelor's degree in International Business from St. Cloud State University in Minnesota.

Robyn Rojas
Immigration Analyst/ ARO

Ms. Rojas advises OUHSC international faculty and staff on employment-based immigration regulations and assists with questions regarding travel, employment, and maintenance of status. She provides support on H-1B, E-3, TN, Permanent Labor Certification, and I-140 immigrant visas, and is responsible for filing the Conrad Waiver applications for OU Health. Ms. Rojas completed a BA in Spanish from UNC Charlotte and has an MA in International Studies from the University of Oklahoma. Prior to joining OIS, she worked in immigration on the OU Norman campus for twelve years.


Terms of Use

By using this site you evidence your understanding and acceptance of the following:

General Disclaimer

Please be advised that the information contained on this website is not designed as legal advice and may be subject to change at any time in light of new or additional laws and procedures associated with immigration law. You are further advised that the information contained within this website is subject to legal interpretation by agencies outside of the University’s control.

The information is provided to you for informational purposes only. The Office of Immigration Services (OIS) services are intended to help the University of Oklahoma fulfill its research, instructional, and outreach mission.

While every reasonable effort is made to provide departments and employees with timely assistance for job-related immigration concerns, assistance cannot be provided for personal or family immigration issues and may be further limited by staff resources and institutional priorities.

In no event shall the University of Oklahoma, its affiliates, or content partners be liable for any direct, indirect, punitive, incidental, special, or consequential damages arising out of or in any way connected with the use of this website.

Nothing on this website should be understood to prevent an employee from seeking personal advice or representation by an attorney. No attorney may represent the University of Oklahoma in any immigration matter without written permission from the Office of Legal Counsel.

No Unlawful or Prohibited Use

As a condition of your use of this website, you warrant that you will not use this website for any purpose that is unlawful or prohibited by these terms, conditions, and notices.


Occasionally, and despite our best efforts, typographical errors may appear on our site. Your help in notifying us about them is appreciated. Please e-mail vicky-martin@ouhsc.edu and inform us about them.

External Links

This website contains links to other websites operated by parties other than the University of Oklahoma and the Office of Immigration Services. These links are provided for your convenience only. We have no control over these websites and are not responsible for their content. Our inclusion of links to these sites does not imply any endorsement of the material or any association with them.

No Obligation to Sponsor Employment Based Visa

The University of Oklahoma is under no legal obligation to sponsor a foreign national for an employment based work visa and reserves the right to decline sponsorship at any time.