Commonwealth Diagnostics International

Commonwealth Diagnostics International CDI offers products and services that aid the diagnosis of small intestinal bacterial overgrowth (SIBO) and irritable bowel syndrome (IBS).

Founded in 2015 in Salem, Mass., and operating out of its CLIA-certified laboratory and as an FDA-registered, ISO 13485-certified medical device manufacturer, Commonwealth Diagnostics International (CDI) helps providers identify and diagnose common sources of digestive distress and functional gastrointestinal ailments. CDI’s expansive portfolio of non-invasive at-home hydrogen and methane breath t

ests supports the diagnosis and treatment of Small Intestinal Bacterial Overgrowth (SIBO) and Intestinal Methanogen Overgrowth (IMO), as well as fructose malabsorption, lactose malabsorption, and sucrose malabsorption. Focused on patient-centric principles, CDI breath tests are easy-to-use, quick, and safe for patients and support meaningful GI health outcomes by helping steer each practitioner’s approach to dietary modification, homeopathic remedies, nutritional supplementation, immune support, high-quality probiotics, and additional testing.

Costs and coverage questions can stall breath testing before you even decide which substrate to order.When patients ask,...
07/29/2026

Costs and coverage questions can stall breath testing before you even decide which substrate to order.

When patients ask, “Will this be covered?” and staff can’t answer confidently, testing gets delayed—or dropped altogether.

CDI’s billing and insurance structure is designed to reduce that friction. CDI accepts all Medicare, Medicare Advantage, and Tricare plans with no balance billing, and submits claims to all commercial insurers.
Even when CDI is not in‑network, patients face a clearly defined maximum out‑of‑pocket cost per breath test—currently among the lowest in the industry—so the financial conversation stays concrete instead of speculative.

What this means for practices
Give patients a straightforward ceiling on potential out‑of‑pocket cost before they decide on testing
Use CDI’s online insurance page and order forms as reference tools when staff field coverage questions
Reserve prior auth discussions for plan‑specific nuances, instead of worrying that the underlying test is unaffordable

How CDI’s program supports smoother billing conversations
Claims submitted on patients’ behalf to Medicare, Medicare Advantage, Tricare, and all commercial plans → less administrative burden on your office
A published maximum out‑of‑pocket cost per breath test, positioned among the industry’s lowest → fewer surprise bills and more predictable discussions
Financial hardship programs and payment plans for qualifying patients → more equitable access when cost is a barrier

Bottom line: clear coverage rules + a hard cap on out‑of‑pocket costs
→ easier conversations
→ fewer delays
→ more patients who can actually complete the breath testing you recommend.

In your current workflow, what’s the biggest barrier in talking about breath test costs with patients—uncertain coverage details, variable out‑of‑pocket amounts, or limited time for financial counseling?

“Super easy test” and “very clear instructions” are the kind of patient feedback that lowers hesitation before testing.O...
07/27/2026

“Super easy test” and “very clear instructions” are the kind of patient feedback that lowers hesitation before testing.

One patient described CDI’s at‑home breath test as:
“Super easy test, very clear instructions, and excellent communication. The whole process was simpler than I expected.”
That matters, because when prep feels manageable, patients are more likely to complete testing on time without extra back‑and‑forth from the office. Fewer stalled kits, fewer confused calls, and more usable results at follow‑up.

How CDI supports that experience
At‑home collection → easier for patients to say yes and complete the test independently
Prep guides and instructional videos → clear expectations from the start, fewer “how do I do this?” questions
Translated patient resources → support for more patients across languages and literacy levels

Clear prep → smoother completion → fewer workflow interruptions for your team.

📘 See exactly what patients receive—from instructions to videos and FAQs:
commdx.com/patient-resources

When payers all handle breath testing differently, “Do I need a prior auth for this?” can slow you down before the kit i...
07/24/2026

When payers all handle breath testing differently, “Do I need a prior auth for this?” can slow you down before the kit is even ordered.

Even within the same insurer, some plans require pre‑authorization for CDI breath tests and others don’t creating confusion for staff and patients if it isn’t addressed up front.

CDI’s FAQ is straightforward: whether pre‑auth is required depends on the patient’s individual health plan, and in some cases an out‑of‑network referral may be needed. Patients should contact their health plan about prior auth requirements; if one is needed, your office submits medical‑necessity documentation to the insurer.

What this looks like in practice
✔️Add “Check if your plan requires pre‑authorization” to your standard breath test ordering script
✔️If an auth is obtained, have patients write the authorization number on the CDI requisition form and send a copy of the approval with the kit
✔️Clarify internally who owns prior auth submissions and tracking so claims aren’t denied on process alone

How CDI supports smoother administration
✔️Clear insurance and billing policies, including a defined maximum out‑of‑pocket cost when patients pay promptly → expectations set before you start a prior auth
✔️Dedicated customer service and provider support by phone and email to answer billing and coverage questions
✔️Provider resources and FAQs you can share with staff and patients → everyone working from the same guidance

Bottom line: clear insurance expectations + a simple prior auth routine
→ fewer surprise denials
→ less time spent reworking claims and re‑ordering tests.

In your current workflow, where does prior authorization for breath testing create the most friction—patient education, internal ownership, or tracking approvals?

Every unreturned or “lost in the shuffle” breath test kit is a missed diagnostic opportunity—not just an admin headache....
07/22/2026

Every unreturned or “lost in the shuffle” breath test kit is a missed diagnostic opportunity—not just an admin headache. When orders, returns, and results live in different systems, staff end up chasing status with spreadsheets and phone calls instead of moving patients to the next clinical decision.

Across CDI’s network, practices with the strongest return ratios share one thing: they treat kit registration and status visibility as clinical infrastructure, not an afterthought.

With MyGI Gateway, every CDI breath test order—SIBO, IMO, or carbohydrate malabsorption—is tied to a registered kit and a clear status label, so you can see which tests are out, in transit, and complete.

What this means at the practice level
▪️Replace manual tracking with a single dashboard showing kits ordered, registered, in progress, and resulted
▪️Identify patients who may need outreach before a kit quietly goes missing
▪️Protect your return ratio as a true clinical metric instead of reacting after results fail to show up

How CDI’s program supports this
▪️Real‑time MyGI Gateway tracking → full test‑lifecycle visibility from order to result in one portal
▪️Kit registration workflows → automatic linkage between patient, provider, and test ID so reminders and education trigger appropriately
▪️Automated patient reminders and engagement → less staff time spent asking “Did you ever send that kit back?”

Bottom line: better visibility + automated follow‑through
→ fewer lost kits
→ stronger completion rates without adding staff.

In your current breath testing program, where does “Where is this kit?” show up most often—after ordering, while waiting on returns, or when you’re ready to act on results?

When patients describe breath testing as overwhelming at first but easy to complete, it changes how likely they are to f...
07/21/2026

When patients describe breath testing as overwhelming at first but easy to complete, it changes how likely they are to follow through.

That matters because prep confusion is often what turns a simple test into a follow‑up call or a repeat order.

One patient shared that the test seemed overwhelming at first, but the directions were clear and easier to follow than expected. Once they got started, the process went smoothly and took less effort than they thought it would.

When patients feel guided from the start, practices spend less time re‑explaining prep and troubleshooting avoidable issues—and more time using the data instead of chasing kits.

How CDI supports that experience
🌀Expanded permitted foods → prep feels more realistic and achievable
🌀Patient guides → clearer expectations before testing begins
🌀Instructional videos → easier follow‑through at home

Clear prep → smoother completion → fewer workflow interruptions.
If you’d like to see the materials patients receive from CDI, send us a message and our team can walk you through the full experience.

07/17/2026

When breath testing is treated as “about a 2–3 hour test,” timing details often get lost.
But for SIBO and IMO, when each tube is collected is what separates small‑bowel gas rises from background colonic fermentation.

Consensus guidance and CDI resources emphasize baseline sampling, then collections every 15–20 minutes for up to 180 minutes, depending on substrate and clinical question. Early hydrogen or methane rises suggest small‑bowel activity, while later peaks are more consistent with colonic fermentation—so truncating the test or stretching intervals can blur that distinction, increasing the risk of false negatives, late false positives, and “borderline” curves that are hard to act on.commdx+2

In practice, that means:
▪️Standardizing to baseline + 15‑minute intervals over the full protocol window for SIBO/IMO tests ordered in your practice.
▪️Training staff and patients that the intervals (not just total time) are non‑negotiable for interpretable curves.
▪️Being cautious about interpreting abbreviated or irregularly sampled studies as truly negative when symptoms remain compelling.

How CDI supports this:
▪️At‑home SIBO/IMO breath tests designed around 15‑minute sampling over 2 hours and 15 minutes, aligned with consensus timing and thresholds..
▪️Detailed Instructions for Use, timers, and instructional videos to help patients keep intervals precise outside the lab.
▪️Provider education on timing, thresholds, and pattern recognition so “negative” or “borderline” reports can be interpreted with greater confidence.

Evidence‑based intervals + complete curves → fewer ambiguous studies and more actionable SIBO/IMO decisions.

Read and learn more here: https://f.mtr.cool/vhqedydofi

Every unreturned or “lost in the shuffle” breath test kit is not just an operational frustration—it is a missed diagnost...
07/15/2026

Every unreturned or “lost in the shuffle” breath test kit is not just an operational frustration—it is a missed diagnostic opportunity and an incomplete chart.

Practices already investing in SIBO, IMO, and carbohydrate malabsorption testing cannot afford for kits to sit unregistered on shelves or in patients’ homes.

Across CDI’s network, practices with return ratios consistently above 70% share a few behaviors in common: they register kits at the point of distribution, provide complete patient contact information, and use MyGI Gateway to monitor kit status. Registration ties a specific kit ID to a specific patient and provider order, which unlocks automated reminders, direct‑to‑patient outreach, and real‑time visibility—reducing the silent losses that occur when kits are never activated.

In day‑to‑day workflows, that looks like:
✔️Making kit registration a standard step at handoff (in‑office or direct‑to‑patient), not an optional extra.
✔️Ensuring email and mobile numbers are included on orders so CDI’s team, not your front desk, manages most reminder touches.
✔️Using MyGI Gateway to see which kits are ordered, registered, in progress, or overdue—so staff can intervene before a test quietly disappears.

How CDI supports:
✔️MyGI Gateway centralized hub → one place to track orders, kit registration, and results for all CDI breath tests.
✔️Streamlined registration (QR code and online form) → faster activation and immediate linkage between kit ID, patient, and provider.
✔️Automated reminders and patient outreach → higher completion rates without adding staff time or manual call lists.

Kit registration at distribution + real‑time tracking + automated outreach → more kits back to the lab, stronger return ratios, and more actionable data for clinical decisions.

Full operational checklist on kit registration and return ratios is available here as a practical tool for your team → https://f.mtr.cool/jkvlioxfzk

When patients are new to breath testing, the biggest risk is that uncertainty about the process turns into delays, no‑sh...
07/13/2026

When patients are new to breath testing, the biggest risk is that uncertainty about the process turns into delays, no‑shows, or incomplete kits.

When first‑time testers feel their questions are answered up front and the process takes “about the time they expected,” completion looks very different.

“I’d never taken such a test and had some questions at first. All were answered by the online and printed info, and the process was easy and took the amount of time expected.”

When clear prep materials handle most of the “what do I do?” questions, staff spend less time walking patients through basics and more time using results to make decisions.

That means more completed tests on schedule and fewer calls trying to rescue confused, half‑started studies.

How CDI supports:
Non‑invasive, at‑home hydrogen and methane breath tests → easier for patients to agree to testing.
Online and printed Instructions for Use → prep questions answered before patients pick up the phone.
Patient resource center and support team → consistent guidance without adding to front‑desk workload.

Clear information + predictable process + at‑home collection → higher completion rates and more usable data for SIBO, IMO, and carbohydrate malabsorption workups.

If you’d like to review the exact online and printed materials your patients receive from CDI, message us and our team can walk you through the full experience.

Fewer bad breath tests start before the patient ever opens the kit.When prep feels too restrictive or confusing, patient...
07/08/2026

Fewer bad breath tests start before the patient ever opens the kit.

When prep feels too restrictive or confusing, patients are more likely to slip—leading to invalid, equivocal, or repeat hydrogen and methane breath tests. CDI’s updated Instructions for Use now include an expanded permitted‑foods list, plus patient‑facing guides and instructional video support.

That makes prep more realistic, reduces confusion, and helps practices avoid re‑explaining the same instructions.

What changes in practice:
✔️Fewer prep errors, fewer repeat orders for the same patient
✔️Less staff time spent clarifying allowed foods and fasting steps
✔️More consistent testing conditions, which support cleaner, more interpretable HMBT results

How CDI supports
✔️Expanded permitted‑foods list → easier adherence, fewer barriers to completing prep
✔️Patient guides and instructional videos → clearer expectations from the start
✔️Structured, standardized prep instructions → fewer avoidable retests and delays

Clear prep → more valid breath tests → fewer retests and smoother follow‑up.

Explore how CDI helps standardize HMBT prep without adding staff time.
https://f.mtr.cool/awllcufnzt

When methane testing feels complicated or unreliable, it’s hard to make it a routine part of constipation and motility w...
07/06/2026

When methane testing feels complicated or unreliable, it’s hard to make it a routine part of constipation and motility workups.

When patients describe the kit as “easy to use” and the lab as efficient, that lowers the friction to actually ordering—and acting on—methane tests.

“CDI’s methane testing kit is easy to use and their lab works efficiently to send results to you or to your physician. I would recommend CDI’s methane testing kit with great confidence.”
– Patient review, Muhnir Rahmani

When patients can complete testing without extra coaching and results reach the ordering clinician promptly, it becomes much easier to make methane measurement a consistent part of evaluating suspected IMO and constipation‑predominant presentations.

That means more complete gas profiles in the chart and fewer delays between ordering a test and making a decision at follow‑up.

How CDI supports this
✔Non‑invasive, at‑home hydrogen and methane breath testing → easier for patients to say yes and follow through
✔Standardized kit design and logistics → simple collection and reliable result delivery
✔Educational resources for patients and providers → fewer questions about basics, more focus on what methane data means

Easy‑to‑use kits + efficient lab workflows → higher completion, faster results, and more usable methane data for IMO‑focused care.

If you’d like to see how CDI’s methane breath testing program could work in your practice, send us a message and our team can share sample patient materials and result reports.

Address

Salem, MA

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+18882585966

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