Discovering the Truth Through DNA with Dr. Richard Wenzel

Discovering the Truth Through DNA: Dr. Richard Wenzel on NPEs, Medical Ethics & the Cost of Family Secrets

In this episode of Because She’s Adopted, Kristal Parke sits down with pharmacist, researcher and advocate Dr. Richard Wenzel, whose life changed forever after a consumer DNA test revealed that the man who raised him was not his biological father. What began as a search for an adopted sibling uncovered something far more profound: Richard was an NPE (Non-Parent Expected), conceived through sexual assault, raised with an inaccurate family medical history and left to reconstruct his identity decades later.

Rather than focusing solely on personal discovery, this conversation explores the broader ethical questions surrounding misattributed parentage, genetic truth and whether healthcare professionals have a duty to disclose what they know. It is a powerful discussion about identity, honesty, medicine and the lifelong consequences of keeping genetic secrets.

What Is an NPE (Non-Parent Expected)?

An NPE, or Non-Parent Expected, refers to someone who discovers through DNA testing that one or both of the people they believed were their biological parents are not genetically related to them. As home DNA testing becomes increasingly common, thousands of people are unexpectedly discovering hidden adoptions, donor conception, misattributed parentage and long-kept family secrets. For many, the DNA result is only the beginning.

When a DNA Test Changes Everything

Richard initially purchased a consumer DNA test hoping to locate a sibling who had been placed for adoption decades earlier. Instead, the results revealed something completely unexpected. No paternal DNA matches appeared.

Eventually, new relatives began appearing in his matches, leading him to discover that the father who raised him was not his biological father. Further investigation revealed his biological father had died years earlier and that his conception resulted from a sexual assault against his teenage mother. The discovery suddenly explained decades of questions about identity, family relationships and why he had always felt different growing up.

Why Accurate Family Medical History Matters

As a pharmacist and medical researcher, Richard believes one of the greatest harms caused by genetic secrecy is its impact on healthcare.

Family medical history influences countless medical decisions, including:

• Cancer screening recommendations
• Heart disease risk
• Genetic testing
• Preventive care
• Medication decisions
• Diagnostic evaluations

When that history is knowingly inaccurate, physicians may make clinical decisions using false information. Richard argues that this isn’t simply a family issue, it is also a healthcare issue.

Privacy vs. Secrecy

One of the most thought-provoking discussions in this episode centers on the difference between privacy and secrecy. Privacy protects personal information by sharing it only with those who genuinely need it.Secrecy, however, intentionally withholds truthful information from people who are entitled to know it, including the individual whose own identity and medical history are affected. Richard challenges longstanding medical practices that have encouraged clinicians to conceal discoveries of misattributed parentage, arguing that honesty should remain a core ethical principle in healthcare.

Medical Ethics and Telling the Truth

Drawing from decades working in hospitals, intensive care units and academic medicine, Richard questions why healthcare professionals routinely navigate difficult conversations involving cancer diagnoses, death and serious illness, yet often hesitate to disclose unexpected genetic truths. He believes healthcare organizations should focus less on protecting uncomfortable situations and more on developing evidence-based approaches for compassionate disclosure. Rather than avoiding difficult conversations, he advocates for research into how those conversations can be handled well.

Identity After Late Discovery

Like many adoptees, donor-conceived adults and fellow NPEs, Richard describes the experience of reconstructing his identity after learning the truth.

Looking back, memories that once seemed confusing suddenly made sense.

• Relationships.
• Family dynamics.
• Questions that had lingered since childhood.

Instead of creating a new identity, the discovery helped explain the one that had always been there.

Child-Centered Rather Than Clinician-Centered

A recurring theme throughout the conversation is the need to prioritize the long-term wellbeing of the child rather than the short-term discomfort of adults. Richard believes discussions surrounding genetic discovery should ask a simple question: What serves the individual whose identity and medical history are at stake? That shift, he argues, should guide future medical ethics, research and policy.

Looking Ahead

With consumer DNA testing becoming increasingly common, discoveries of unexpected parentage are no longer rare. Healthcare providers, families and policymakers are being forced to confront questions that previous generations could often avoid. Future research will be essential to developing compassionate, evidence-based guidelines for disclosure while recognizing that every person deserves truthful information about their own biological history.