By Dr. Drew Brennes, D.C. — The Nexus Letter Doctor
TL;DR — Quick Answer: Many large VA "claim consulting" companies operate on a brokerage model — the company markets to you, takes your information, and then assigns your case to a third-party physician you'll never communicate with directly. That doctor writes your nexus letter from a packet of records, with no real conversation, no follow-up, and no continuity if the VA denies or pushes back. A direct-provider model — where the doctor who writes your letter is the same person who reviewed your records, talked with you, and stays with you through any appeals — produces stronger letters and better outcomes. It also avoids the regulatory and legal risk that increasingly surrounds the unaccredited claim-consulting industry.
If you've spent any time researching nexus letter providers, you've probably noticed that the market is split into two very different camps. On one side: large national claim-consulting companies that advertise heavily, take your records through a sales funnel, and then assign your case to one of many contracted physicians you'll never speak with directly. On the other side: direct medical providers — individual doctors who personally review your records, talk with you, write your letter, and continue working with you if the VA pushes back.
Both models will get you a piece of paper called a "nexus letter." But the resemblance ends there. These two approaches produce very different results. One delivers a generic template. The other delivers a tailored medical opinion — and increasingly, between operating within the law and operating in territory that the VA and the Federal Trade Commission have flagged for closer scrutiny.
I handle this work directly with veterans, online, with no intermediaries. I'm Dr. Drew Brennes, D.C., and since 2021 I've personally written every nexus letter that bears my name. I don't refer out. I don't broker work. When you hire me, you communicate directly with me — the same doctor who reviews your records and writes your letter. I've worked with veterans across the United States and internationally for vets stationed or residing overseas. When the VA pushes back, I'm still on your case through supplemental claims, Higher-Level Reviews, and Board appeals. This post explains why that model is different — both in terms of letter quality and in terms of where the law is going.
The brokered model has a recognizable shape from the veteran's perspective:
There's nothing inherently illegal about that model. But it has structural weaknesses that show up in claim outcomes and that the regulatory community has increasingly flagged.
The direct-provider model is much simpler, and substantially fewer people use it because it doesn't scale the way a brokerage does:
This is the model I've used since I started writing nexus letters in 2021. Every letter that goes out is one I read, drafted, and signed personally. I work with veterans across the United States and internationally — almost all of my consultations happen remotely, by phone or email. What matters isn't whether we sit in the same room; what matters is that you communicate directly with the doctor who is actually writing your letter.
| Feature | Brokered Claim Consultant / "Mill" | Direct Medical Provider |
|---|---|---|
| First conversation | Sales rep / claim consultant (not a physician) | The doctor who will write the letter |
| Records review | Performed by intake staff; doctor sees a summary | Doctor personally reviews the entire record |
| Letter authorship | Contract physician you've had no direct contact with | The doctor you've been communicating with |
| Customization | Template-driven with case-specific fill-ins | Tailored, case-by-case medical reasoning |
| Communication during drafting | Usually none with the writing physician | Direct, with the writing physician |
| Continuity after delivery | Engagement typically ends at letter delivery | Continues through appeals, supplemental claims, Higher-Level Reviews |
| What happens if VA denies? | Often "not our problem" — you start over | Same doctor patches the letter / rebuts C&P opinion |
| Pricing model | Often percentage-of-rating-increase or large flat fee | Flat fee, transparent up front |
| Geographic reach | Varies; many U.S.-only | U.S. and international veterans served remotely |
| Regulatory exposure | Increasingly under VA / FTC / state AG scrutiny when crossing into "representation" | Medical opinion only; works alongside veteran's accredited representative |
This is the part most veterans don't appreciate until they're on their second or third denial. The quality of a nexus letter is determined by the quality of the medical reasoning. And the quality of the medical reasoning depends on how well the doctor understands your specific case.
A generic letter that says "PTSD is associated with obstructive sleep apnea in the veteran population" will not move a claim. The VA's own C&P examiners produce that level of opinion every day, and the rater discounts it accordingly. What moves a claim is medical reasoning that ties your specific service, your specific symptoms, your specific timeline, and your specific imaging or lab data to the precise CFR sections that govern your claim, supported by peer-reviewed literature that applies to your clinical profile.
That kind of reasoning is impossible to produce from a sales-rep intake form. It requires the writing physician to read your records and ask specific clinical questions. The physician must understand the chronological progression of your conditions and identify the strongest pathway forward.
When a brokerage hands the writing physician a summary packet with no opportunity to ask follow-up questions, the resulting letter is necessarily generic. And a generic letter is exactly the kind of letter a C&P examiner can dismiss with "the opinion does not contain medical reasoning specific to this veteran's case."
For more on what separates a strong nexus letter from a weak one, see What Makes an Effective Nexus Letter. For the difference between a nexus letter and the related Disability Benefit Questionnaire (DBQ) most claimants need, see DBQ vs Nexus Letter.
It's also worth knowing that the legal standards governing secondary nexus letters changed in 2026. The VA updated its secondary service connection causation framework in May 2026 following Spicer v. McDonough — see The VA Changed the Rules on Secondary Claims: What the New 'But For' Standard Means for Your Nexus Letter (2026) for the details on what any properly prepared secondary nexus letter must now say.
At some point in any veteran's claim, the VA will push back — through an initial denial, a negative C&P opinion, a request for additional development, or a confirmation of a prior denial. What your provider does at that moment matters more than what happens in the initial filing.
Under the brokered model, the relationship typically ends when the letter is delivered. If the VA denies, you're on your own to figure out the supplemental claim, the Higher-Level Review, or the Board appeal. You may have to re-engage the company (and re-pay) to get any further help, or hire a new provider who has to start from scratch.
Under a direct-provider model, the same doctor stays on your case. When the VA's denial reasoning lands, the doctor reads it, identifies the specific weakness in the rater's logic, patches the letter with the missing evidence or new medical literature, and the file goes back in with a substantially strengthened argument. I've done this dozens of times — patched letters for new EMG/NCS results, new MRI findings, new diagnostic workups, new lay statements, new clinical notes from treating providers. Each patch is a targeted response to what the VA actually said, not a generic resubmission.
That continuity is what wins claims at the supplemental claim, Higher-Level Review, and Board appeal stages. It's a service the brokered model structurally can't provide because the writing physician has no relationship with you and no incentive to stay involved.
If you've been denied and aren't sure what to do next, see Why VA Claims Get Denied (and How to Fix It).
This section matters whether you're a veteran choosing a provider or a provider trying to operate ethically in this space. The VA and the FTC have been increasingly focused on the unaccredited claim consulting industry — companies that, for compensation, prepare, present, or prosecute VA disability claims without VA accreditation.
The key statutory and regulatory framework:
The accreditation framework is specifically about representation — preparing, presenting, or prosecuting your claim before the VA. It is separate from being a medical provider who writes nexus letters and provides independent medical opinions. A physician who writes a nexus letter is providing a medical opinion, not representing you before the VA, and accreditation requirements apply differently.
But there is increasing concern in the regulatory community about claim consulting companies that blur the line — companies that, while officially "just" providing nexus letters, in practice are directing the entire claim, signing veterans up for representation-adjacent services, and charging percentage-of-rating-increase fees that the accreditation statute would not permit if they were honestly accredited representatives.
If a company takes a percentage of your future VA benefits, prepares and submits your claim forms, or represents you before the VA in any way — that company should be VA-accredited under 38 C.F.R. § 14.629 or § 14.631, and you should be able to verify that accreditation in the public database in under a minute.
This is a 60-second check you should do for any provider — including me — before you hire anyone:
If the provider claims to represent you before the VA — i.e., prepare and submit claim forms, communicate with VA on your behalf, attend hearings, present arguments — they should be in this database. If they aren't, ask why.
If the provider is only writing a medical opinion (a nexus letter, a DBQ, a C&P-style report) and is not representing you before the VA, the accreditation database doesn't apply to them. Their qualifications are clinical, not representation-related. You should still verify them, but you're verifying medical licensure and experience, not VA accreditation.
For me specifically: I write nexus letters. I'm a medical provider, not a VA-accredited representative. I work alongside whoever your accredited representative is — your VSO (DAV, VFW, AmVets, etc.), your accredited claims agent, or your accredited attorney. I don't try to step into the representation role, and I don't try to handle your claim forms or hearings.
For more on whether a chiropractor specifically can write a nexus letter, see Can a Chiropractor Write a Nexus Letter?
When a veteran contacts me, this is the actual sequence:
That continuity is the most important difference between this model and the brokered model. Some of the strongest claim wins I've seen have come on the second or third round of review — and they only happen because the writing physician is still in the case.
The term refers to large claim consulting companies that take veterans through a sales funnel, then assign nexus letter production to contracted physicians the veteran never communicates with directly. The model is built for scale, not customization, and tends to produce generic letters that don't survive close C&P scrutiny.
Writing a nexus letter as a medical opinion is not, by itself, regulated by the VA accreditation framework. What is regulated is representation — preparing, presenting, or prosecuting a VA claim for compensation. When a claim consulting company crosses from "writing a medical opinion" into "preparing and submitting the claim," accreditation rules under 38 U.S.C. Chapter 59 and 38 C.F.R. §§ 14.626-14.637 apply. Where companies blur that line, they're operating in territory the VA, the FTC, and state attorneys general have increasingly scrutinized.
No. "Direct" refers to the line of communication between you and the doctor who is actually writing your letter — not whether you sit in the same room. I work with veterans across the United States and internationally, and almost all of my consultations are by phone or email. What matters is that the doctor who writes your letter is the same person you've been communicating with — not an anonymous contract physician handed your file by a third party.
Yes. I've worked with U.S. veterans living abroad as well as those stationed or residing in other countries. Records are exchanged electronically, consultations happen by phone, video, or email, and the letter is delivered as a signed PDF you can submit through your accredited representative or directly to the VA. The medical reasoning standard and the CFR framework don't change based on where you are — they're tied to your service and your records, not your zip code.
Go to va.gov/ogc/apps/accreditation and search by name. The database returns accredited Attorneys, Claims Agents, and VSO Representatives. Verification is free and takes about a minute.
A VA-accredited representative (an Attorney, Claims Agent, or VSO Representative under 38 U.S.C. Chapter 59) represents you before the VA — prepares and submits claim forms, communicates with the VA on your behalf, attends hearings, and presents arguments. A medical provider (a doctor) writes a medical opinion supporting your claim — a nexus letter, a DBQ, or a similar report. Most veterans benefit from having both: a VA-accredited representative and an independent medical provider who supplies the medical opinion their case depends on.
The VA's own recommended channel is the Federal Trade Commission's complaint assistant at ReportFraud.ftc.gov. The VA's accreditation program is automatically notified of complaints filed through that link, and the complaint also becomes accessible to other federal and state law enforcement authorities for possible investigation. The VA's own accreditation page explicitly recommends this route for complaints involving claim assistance on compensation claims.
Under the brokered model, your engagement with the company typically ends at letter delivery. If the VA denies, you're often on your own to figure out the appeal, hire a new provider, or re-engage and re-pay the original company. Under a direct-provider model like mine, the same doctor stays with you through supplemental claims, Higher-Level Reviews, and Board appeals — patching the letter with new evidence and rebutting the VA's specific denial reasoning — at no additional fee.
In my experience, direct-provider letters are typically less expensive than the percentage-of-rating-increase fees the large brokered consultants charge. A flat fee for a single letter is dramatically cheaper than a percentage that, over the life of your rated disability, can run into tens of thousands of dollars.
Three things to look for, in this order:
If you're considering me specifically: request a free, no-obligation consultation here — domestic or international. I'll tell you honestly whether I think a nexus letter will move your case before you spend a dime. If I don't think I can help, I'll tell you that too.
This article is for informational purposes only and is not legal advice. It is intended to help veterans understand the difference between brokered and direct nexus letter providers, and the regulatory framework that governs VA representation. Always verify any provider's credentials yourself before hiring them.
