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OASIS-D1 Certification Exam (Miami)
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 Export to Your Calendar 10/23/2020
When: Friday, October 23, 2020
8:30am-11:00am, Registration at 7:45am
Where: Map this event »
Springhill Suites Miami Doral
3895 NW 107th Ave
Doral, Florida  33178
Contact: Julia Heath
(850) 222-8967

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OASIS-D1 Certification Exam: Demonstrate Your Expertise in OASIS-D1!

HCAF will be offering the paper and pencil version of the OASIS Answers, Inc.’s COS-C exam. Home care providers may take this voluntary exam in order to demonstrate their expertise and commitment to OASIS accuracy. The exam is open book, consists of 100-multiple choice questions and there is 2.5 hours provided to complete it. Upon successful completion of the exam, participants are awarded the Certificate for OASIS Specialist – Clinical (COS-C) designation. Computer-based testing is also available.

Are you...

  • Looking to earn your certificate as an OASIS specialist and enhance your professional credibility?
  • Wanting to demonstrate your OASIS expertise?
  • Desiring an objective evaluation of your knowledge?
  • Searching for a way to increase your value to your current or future employer or clients?

If any of these apply to you, consider sitting for the COS-C examination. Established in 2004, the exam is the premier, nationally standardized, psychometrically validated test that evaluates a clinician's knowledge of CMS' OASIS guidelines. The exam itself undergoes rigorous performance and item-analysis adhering to psychometric industry standards to ensure item validity, content relevance, result reliability and overall evaluation integrity. Employing such a rigorous process allows OASIS Answers' to confidently award the COS-C certificate to those select individuals who demonstrate OASIS expertise by passing the COS-C exam.

Interested, but have a few questions? Here are the most frequently asked questions about the exam from potential candidates like you!

How difficult is the exam?

The COS-C exam passing rate in 2016 was 73%. Passing rate is defined as the percentage of candidates who achieved a successful passing score during a specified time frame (i.e., during the calendar year 2016, 73 out of every 100 COS-C testing candidates achieved the passing score). Historically (from 2004-2016) the passing rate has remained extremely consistent, varying between 71% and 76% from year to year, indicating a fair exam, not too hard and not too easy.

*Pass Rate for the 2019 exam is 77%.

What information is covered?

The exam will always test you on the most current Centers for Medicare & Medicaid Services (CMS) OASIS data collection guidelines. Visit OASIS Answers' COS-C exam preparation webpage to view the latest exam detail including an expanded description on all exam content areas along with a sample test question for each. The COS-C exam is open book so feel free to bring printed resources with you, including the latest annual INSTANT OASIS Answers Guide (“The Brown Book”). Other suggested resources include:

  • CMS Core OASIS Documents
  • OASIS-C2 Guidance Manual, Chapter 3
  • Other CMS-based resources/handouts from OASIS training classes

How much does the exam cost?

There are different costs for taking the COS-C exam depending on: (a) which type of administration you choose (Paper & Pencil vs. Computer-Based Testing); and, (b) if you are an initial or renewal candidate.

Initial exam candidates pay $250 and renewal exam candidates pay $200. The COS-C exam is a three-year designation, thus when you pass the COS-C exam, you will not incur yearly maintenance fees or have costly mandatory continuing education requirements to fulfill. Decide for yourself how you'd like to stay up-to-date, utilizing whatever self-study or formal workshop approach you prefer.

How do I prepare?

Independent study of the current rules and guidance provided by CMS is recommended for all exam candidates though is not explicitly required. Attend a session of the two-day Blueprint for OASIS-d Accuracy workshop and receive the most comprehensive and focused review of current data collection guidance available. Every Blueprint for OASIS Accuracy attendee will receive a free copy of the 600-plus-page Blueprint manual, which contains all the most recent versions of the CMS data collection resources, and which is an invaluable resource for review and during the open-book exam. The handout is updated monthly with the most current CMS guidance, so please recognize that older copies may contain outdated or incomplete guidance.

Use the domain descriptions and sample questions on the OASIS Answers COS-C exam preparation webpage to test yourself. If you cannot attend training, make sure you have and are familiar with the most current CMS OASIS guidance. Click here to access COS-C exam details and sample questions.

Registration Details & Requirements

Exam registration must be received two weeks prior to exam date. Click here to download the COS-C exam application form. Exam candidates must check in at the exam site by 8:30 a.m. on the day of the exam.

Additional Information

Please direct additional questions about the COS-C exam to OASIS Answers by calling (425) 868-2304 or emailing

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