You're planning your HIPAA compliance audit, but you're facing a choice that affects your timeline, budget, and risk exposure: should you start with an internal audit or bring in external auditors immediately?
This isn't a theoretical question. In the year to May 2023, 51% of organizations failed CMS compliance reviews and received corrective action plans. Many of those failures could have been prevented with the right audit sequence.
The Decision You're Facing
You need to verify HIPAA compliance across your operations. You can:
- Run an internal audit using your own team and checklists
- Engage external auditors to conduct a formal compliance review
- Execute both, but in which order?
The stakes are high. The Office for Civil Rights is escalating enforcement action against organizations that fail to respond to Data Subject Access Requests on time. CMS has authority to impose civil monetary penalties on organizations that fail compliance reviews and don't remedy violations through corrective action plans.
Your choice affects not just compliance outcomes, but also how you allocate resources and manage risk exposure.
Key Factors That Affect Your Choice
Your compliance maturity level
If you haven't conducted a HIPAA risk assessment in the past 12 months, you're not ready for an external audit. You need baseline visibility into your gaps first.
The scope of your HIPAA obligations
The HIPAA Privacy Rule requires compliance with up to fourteen sets of standards depending on your operations. A health plan faces different requirements than a clearinghouse or a business associate providing billing services. If you haven't mapped which standards apply to your organization, an external audit will simply document that gap without helping you fix it.
Your documentation readiness
External auditors expect to see policies, procedures, training records, authorization management processes, and disclosure accountings. If these don't exist in documented form, you'll pay external auditors to tell you what you already know.
Budget and timeline constraints
External audits cost more and follow fixed schedules. Internal audits let you identify and remediate issues before external scrutiny begins.
Whether you're responding to a complaint or breach
If OCR or CMS has initiated a compliance review, you don't have the luxury of sequencing. You're in external audit mode immediately.
Path A: Start with Internal Audit
Choose this path when:
- You haven't conducted a comprehensive HIPAA audit in the past year
- You're uncertain which HIPAA Administrative Simplification Regulations standards apply to your operations
- You lack documented policies for Privacy Rule requirements like authorization management, disclosure accounting, or Data Subject Access Request responses
- You haven't designated a HIPAA Privacy Officer or Security Officer
- Your workforce hasn't completed HIPAA training aligned to current policies
- You're preparing for voluntary certification or pre-emptively strengthening your compliance posture
How to execute this path:
Start by determining which standards apply to your organization. If you conduct claims processing in-house, you'll need to include Part 162 Administrative Requirements on your checklist. Use the Administrative Simplification Enforcement and Testing Tool to verify transaction compliance.
For the Privacy Rule, audit each applicable standard separately. Don't assume all fourteen standards apply to you. Review whether you're a hybrid entity, affiliated entity, or part of an organized health care arrangement, which triggers additional General Provisions requirements.
For the Security Rule, the ONC and OCR jointly provide a HIPAA Security Risk Assessment Tool. But before you use it, answer six preliminary questions: Have you designated a Security Officer? Do you know where ePHI originates and how users access it? What security software and role-based access controls already exist? What incident reporting processes are in place?
These questions expose gaps the tool won't catch. If you can't answer them, the SRA Tool will generate findings without context.
Document everything. The Privacy Rule and Security Rule both require retaining policies and procedures for at least six years since they were last in force. Your internal audit should produce a findings report, gap analysis, and remediation plan with ownership and deadlines.
What you gain:
You identify compliance gaps on your terms, before external auditors do. You can remediate violations without regulatory scrutiny. You build institutional knowledge about where your HIPAA obligations intersect with operations. And you create the documentation foundation that external audits require.
Path B: Start with External Audit
Choose this path when:
- You've already completed recent internal audits and remediated findings
- You need third-party certification for business purposes (client contracts, RFP requirements)
- You're responding to an OCR investigation, CMS compliance review, or breach notification trigger
- You require an independent validation of controls for board reporting or insurance purposes
- Your internal team lacks HIPAA domain expertise to design a comprehensive audit program
How to execute this path:
Engage auditors who specialize in the specific external requirement you're addressing. An OCR audit protocol review differs from CMS compliance review criteria, which differs from third-party certification programs.
Provide auditors with complete access to policies, procedures, systems, and personnel. External audits move faster when you've pre-organized documentation by HIPAA standard.
Expect findings. External auditors will identify gaps your team missed or deprioritized. Budget time and resources for remediation before the audit report is finalized.
If you're responding to a regulatory review, recognize that you may have limited time to implement corrective actions. CMS issues corrective action plans when organizations fail compliance reviews. Failure to comply with those plans triggers the civil monetary penalty authority.
What you gain:
You receive an independent, credible compliance assessment. External audits carry weight with regulators, clients, and business partners. If you're already under regulatory scrutiny, external audit is your only path to demonstrating compliance.
But you pay for this credibility. External audits cost more, take longer to schedule, and offer less flexibility to remediate issues before they're documented.
Path C: Sequential Approach
Choose this path when:
- You have budget and timeline flexibility
- You want to maximize compliance confidence before external validation
- You're preparing for high-stakes certification or regulatory review
- You need both internal gap remediation and external credibility
How to execute this path:
Run your internal audit first. Remediate findings. Document your remediation. Then engage external auditors to validate your controls.
This sequence minimizes external audit findings, reduces remediation costs, and demonstrates compliance maturity to auditors. It's the most resource-intensive approach, but it produces the strongest compliance posture.
Time your external audit to coincide with business milestones: client contract renewals, funding rounds, or regulatory filing deadlines.
Summary Matrix
| Factor | Internal First | External First | Sequential |
|---|---|---|---|
| Compliance maturity | Low to moderate | High | Moderate |
| Documentation readiness | Incomplete | Complete | Incomplete initially |
| Budget | Lower | Higher | Highest |
| Timeline | Flexible | Fixed | Extended |
| Regulatory pressure | None | Immediate | None |
| Outcome | Gap identification | Validation | Maximum confidence |
| Best for | Preparation | Response | Certification |
The right path depends on where you are now, not where you want to be. If you're not confident you can answer basic questions about your HIPAA obligations, your Privacy Officer designation, or your ePHI audit trail, start internal. If regulators are already asking questions, you don't have that choice.
