Independent cause-of-death medical opinions for attorneys handling DIC claims and surviving families seeking private review. Every case is personally reviewed and every opinion authored by Dr. John H. Hart, Jr., M.D., drawing on 25+ years of clinical medicine and a career in military aerospace medicine.
A deliberately limited caseload allows thorough review of the medical record, competing explanations, and the causation question.
Dependency & Indemnity Compensation (DIC) cases turn on the evidence connecting a veteran's death to military service or service-connected conditions. Choose the path that fits your case.
Physician-led analysis for counsel handling complex cause-of-death questions. A thorough review of the record, competing medical explanations, and the reasoning that supports the independent opinion.
For Attorneys →Private medical opinion services for surviving spouses and families seeking to understand whether the medical evidence supports a connection between a veteran's death and service. You may inquire directly without an attorney referral.
For Families & Survivors →General nexus opinions for living veterans remain available following case review, including secondary service connection. Fees range from $1,500 to $3,500 based on complexity. Inquire about a nexus opinion →
Independent opinions only — no DBQs, no in-person exams, no diagnosis or treatment. Secure document exchange through SimplePractice.
Four clear steps from first contact to a completed, defensible medical opinion.
We confirm the scope of your case, the records available, and your objectives — before any commitment.
If your case is accepted, you receive a secure SimplePractice link for payment and document exchange.
Dr. Hart conducts a comprehensive, evidence-based assessment of your medical and service records.
You receive a defensible medical opinion, personally authored and suitable for VA and legal use.
Dr. Hart is a board-certified internal medicine physician with more than 25 years of clinical experience across hospitals and clinics. He brings that same clinical rigor — and a career in military medicine — to every independent opinion he writes.
A retired Lieutenant Colonel and Senior Flight Surgeon in the USAF Reserve, he deployed multiple times in support of Operation Iraqi Freedom and Operation Enduring Freedom as a Critical Care Air Transport physician. He understands service-connected medicine because he has lived it.
Five-star endorsements from fellow military medical officers and the veterans we serve.
Questions from referring attorneys, surviving families, and veterans about independent medical opinions.
A Dependency & Indemnity Compensation (DIC) letter is a physician's opinion for surviving spouses and families, addressing whether a veteran's death was linked to a service-connected condition.
Start with the attorney referral page for complex DIC and cause-of-death opinion services. Include a brief description of the medical causation question and any deadline. Scope, records, fees, and timing are confirmed before engagement.
Yes. Surviving spouses and families may inquire directly without an attorney referral. Visit DIC services for families and survivors for the process, records checklist, and published fees. Conclusions follow the medical evidence; no claim outcome is guaranteed.
A nexus letter is an independent medical opinion, written by a physician, that connects your current medical condition to your military service — or to an existing service-connected condition — using the VA's "at least as likely as not" evidentiary standard.
Any licensed physician may write one, but credibility drives the weight it carries with VA reviewers. Opinions hold more probative value when authored by a board-certified physician who reviews your complete record. Every Hart Causation opinion is personally authored by Dr. John H. Hart, Jr., M.D. — ABIM board-certified, 25+ years of clinical experience, and a career in military aerospace medicine.
Fees vary by case type. General nexus letters for VA disability claims range from $1,500 to $3,500 depending on complexity. DIC (cause-of-death) opinions for surviving spouses are priced separately — $4,000 standard, $5,500 complex, $7,000 exceptional. Expedited review is available for a 30% surcharge on the assigned case fee. You receive a scope confirmation before any commitment.
Turnaround is confirmed after an initial case review and varies by case type and complexity. Expedited review is available for deadline-driven claims and appeals, for a 30% surcharge on the assigned case fee.
Yes. Opinions can address secondary service connection — conditions caused or aggravated by an existing service-connected disability — where the medical evidence supports the connection.
No. Hart Causation and Claims provides independent medical opinions only — no DBQs, no in-person exams, no diagnosis or treatment. All communication runs through secure, HIPAA-compliant channels.
The work includes review of the supplied medical and service records, analysis of the causation question and conflicting evidence, and a reasoned independent opinion personally authored and signed by Dr. Hart. The scope is confirmed before engagement, and conclusions follow the evidence.
Attorneys and families are welcome to inquire directly. Briefly describe the causation question and any deadline; we will confirm scope, records, and availability before engagement.