I got Acute Mountain Sickness at just 11k feet. Headache, nausea, dizziness, fatigue. I passed out until hitting the ground woke me up. I was very disoriented and vulnerable. If someone had told me that I had to get to a hospital or I'd die they could have led me like a tame goat. And they could be right. If you have high-altitude cerebral or pulmonary edema it is life threatening.
A guide getting a kickback can make it a lot more likely just by cutting short the boring acclimatization time.
This doesnt sound accurate. I have trekked the Himalayas for over a decade - the risks of AMS are very real. Two people I have trekked with have died due to AMS on separate himalayan treks - both had trekked multiple times before, and were well aware of the risks. Both the fatalities were around 12000-14000 feet - much below the Everest Base Camp trek. When AMS hits, you need to descend - as fast as possible, with whatever means you have at your disposal. Otherwise you have unknowingly entered a Russian Roulette.
And Diamox is used as a preventative course for AMS - alongside excessive water intake - this is standard guidelines in all high altitude himalayan treks.
Why would it be fixed? Insurance companies aren’t willing to invest in oversight, and everyone else profit, there is no incentive for changing the system.
The amount of each incident is fairly low, and probably goes a long way to funding the local community.
But the number of incidents is nuts - well over 1000 per year.
And Sagarmartha national park and the whole valley up to EBC is an amazingly beautiful part of the world.
On the whole, there is finite capacity of certain assets, like helicopters. If the emergency carrying capacity is X and true emergencies are .6 X then there is spoiled capacity of .4 X, in which fraudulent emergencies are placed, keeping everyone in the system whole so that when true emergencies approach .9 X there is no need for fraud. This follows the "optimal amount of fraud is non-zero" and eliminating this fraud might remove the margin needed for the system to exist at all.
An anecdote tells of the British government's bounty on dead Indian cobras
giving locals the perverse incentive to start breeding the snakes, to be able
to kill more of them and collect more bounty
https://en.wikipedia.org/wiki/Perverse_incentiveIt percolated up. It’s usually what happens with corruption. If lower levels are found out to have a lucrative scheme, the higher ups (auditors, police, legislators) make a big fuss about stumping it publicly, but behind the scenes go and ask for a cut.
What is less discussed is what happened to people who were able to identify the scam and refused to let it happen.
Make coverage void in the Himalayas... problem solved
However, if they all gang up together they might do something - but that can cause other issues (a local insurer becomes the only insurance available, etc).
I have no idea how many of those people have to buy insurance.
Source: https://everestcamptrek.com/how-many-people-hike-to-everest-...
The only ill effect I can find from overconsumption is a "tingly sensation on the tongue". Of course, that doesn't mean the 'poisoner' wasn't ignorant of this, and genuinely did it trying to make them sick. Or maybe they simply said, "If you feel your tongue tingling, YOU ARE DYING!!!".
> In at least one case cited in the investigation, baking powder was mixed into food to make tourists physically unwell.
For other mountains with dry summits in the summers, I would agree: the effects of erosion are frightening
It's basically a way for everyone to get more tourists dollars, which is one of Nepals primary exports.
So while it might feel like the insurers were getting fleeced, it was almost certainly the insured who didn't get the copter ride.
A small amount won't make a different, it'll just stimulate a bit more H+ production from your stomach's proton pumps.
Edit: The article I read claims the scam involved baking powder, which makes even less sense given that it's even more noticeable, bitter and metallic.
The saying is that the snowpack gives back everything you put in it.
The highest peak in the contiguous United States is Mt. Whitney at ~14.5k feet
It's "not that high", but people frequently do get AMS at those attitudes or even lower.
Pics/video: https://www.instagram.com/p/DBTpLGtydZW/
In Nepal, helicopter rescue on high altitude is, by any measure, a genuine lifesaving operation. At high altitude, where oxygen thins and weather changes without warning, the ability to airlift a stricken trekker to Kathmandu within hours has saved countless lives. But threaded through that legitimate system, exploiting its urgency, its opacity, and its distance from oversight, — is one of the most sophisticated insurance fraud networks in the world.
Nepal’s fake rescue scam is not new. The Kathmandu Post first exposed it in 2018. Months later, the government convened a fact-finding committee, produced a 700-page report, and announced reforms. In February 2019, The Kathmandu Post published a long investigative report.
Last year, Nepal Police’s Central Investigation Bureau reopened the file, and what they found is that the fraud did not stop — instead it was growing.
How does the scam work?
The mechanics of the fake rescue racket are straightforward: stage a medical emergency, call in a helicopter, check a tourist into a hospital, and file an insurance claim that bears little resemblance to what actually happened. But the sophistication lies in how each link in the chain is compensated, and how difficult it is for a foreign insurer — operating from Australia and the United Kingdom— to verify events that occurred at 3,000 metres in a remote Himalayan valley.
The CIB investigation identifies two primary methods for manufacturing an “emergency.”
The first involves tourists who simply don’t want to walk back. After completing a demanding trek — an Everest Base Camp trek, for instance, can take up to two weeks on foot — guides offer an alternative: pretend to be sick, and a helicopter will come. The guide handles the rest.
The second method is more troubling. At altitudes above 3,000 metres, mild symptoms of altitude sickness are common. Blood oxygen saturation can drop, hands and feet tingle, headaches develop. In most cases, rest, hydration or a gradual descent is all that is needed. But guides and hotel staff, according to the CIB investigation, have been trained to terrify trekkers at precisely this moment. They tell them they are at risk of dying, that only immediate evacuation will save them. In some cases, investigators found that Diamox (Acetazolamide) tablets, used to prevent altitude sickness, were administered alongside excessive water intake to induce the very symptoms that would justify a rescue call.
In at least one case cited in the investigation, baking powder was mixed into food to make tourists physically unwell.
Once a “rescue” is called, the financial choreography begins. A single helicopter carries multiple passengers. But separate, full-price invoices are submitted to each passenger’s insurance company, as if each had their own dedicated flight. A $4,000 charter becomes a $12,000 claim. Fake flight manifests and load sheets are fabricated. At the hospital, medical officers prepare discharge summaries using the digital signatures of senior doctors who were never involved in the case. In some cases, these are done without those doctors’ knowledge. Fake admission records are created for tourists who were, in some documented instances, drinking beer in the hospital cafeteria at the time they were supposedly receiving treatment.

Post file photo
In one case, an office assistant at Shreedhi Hospital admitted that he had provided his own X-ray report taken about a year ago at a different hospital, to be used as a case for treatment of foreign trekkers to claim insurance.
The commission structure that holds the network together was described in detail during police interrogations. Hospitals pay 20 to 25 percent of the insurance payment to trekking companies and a further 20 to 25 percent to helicopter rescue operators in exchange for patient referrals. Trekking guides and their companies benefit from inflated invoices. In some cases, tourists themselves are offered cash incentives to participate.
What is the actual scale of the fraud?
The numbers that emerge from the CIB investigation are striking.
Between 2022 and 2025, investigators identified 4,782 foreign patients treated across the implicated hospitals. Of these, 171 cases were confirmed as fake rescues. Over that period, Era International Hospital received deposits of more than $15.87 million linked to these activities. Shreedhi International Hospital received over $1.22 million.
Among rescue operators, Mountain Rescue Service conducted 171 fraudulent rescues out of 1,248 total charter flights, claiming approximately $10.31 million from insurers. Nepal Charter Service carried out 75 fake rescues from 471 flights, claiming $8.2 million. Everest Experience and Assistance was linked to 71 suspicious rescues from 601 flights, with insurance claims totalling $11.04 million.
In one instance that illustrates the brazenness of the scheme, police documented a case in which four tourists were rescued on a single helicopter flight, on the same date, using the same helicopter and manifest. Insurance claims were nonetheless submitted as multiple separate rescues, with the total rescue bill reaching $31,100, plus a separate hospital bill of $11,890.
Dr Girwan Raj Timilsina of Shreedhi Hospital, speaking during interrogation, said that in one case alone, his hospital paid approximately Rs9.1 million in commissions to Nepal Charter Service, Rs1.5 million to Heli on Call, and a further Rs1.5 million to trekking operators. “My hospital has also given commission from its earnings to trekking companies and rescue companies to promote business,” he said in a recorded statement.
Are all the trekkers scammed?
Not all the foreign nationals who come to Nepal for trekking are scam victims. Some of them are willing participants, according to evidence in the CIB investigations.
A WhatsApp exchange recovered during the investigation reveals a German trekker, Petra Homens, complaining to Rabindra Adhikari, the chairman of Nepal Chartered Service and one of the key figures in the network, that she appeared to have been double-billed. “Your company charged double!!!” she wrote, noting that her insurer had already paid the helicopter cost directly. Adhikari acknowledged that there may have been a double charge and offered a refund.

Post file photo
The exchange is significant because it confirms that the helicopter bill had been deliberately inflated for insurance purposes, and that the same individual was also implicated in fake treatment claims.
On the other side, two Canadian trekkers (whose names the Post is withholding to protect their privacy) proactively filed a complaint with the CIB in late 2025, alleging fraudulent medical evacuation during their November trek. Their complaint described a now-familiar pattern: oxygen readings reported to insurers as dangerously low (50 to 51 percent), unnecessary CT scans and ICU admissions, and hospitals that exaggerated conditions to justify the paperwork.
Wasn’t the system supposed to be fixed?
The new investigation is a story about institutional failure in Nepal. In 2018, following early reporting in The Kathmandu Post, a government fact-finding committee spent months investigating ten helicopter companies, six hospitals, and 36 travel and trekking agencies. The resulting 700-page report, which was submitted to then Tourism Minister Rabindra Adhikari, documented widespread fraud. It cited multiple insurance claims for single helicopter rides, pressure placed on trekkers to agree to unnecessary airlifts, and allegations that food was adulterated to make tourists sick.
The committee recommended that all helicopter companies, hospitals, tour operators and insurance firms be required to submit details of rescue flights and medical treatment to the Tourist Search & Rescue Committee, the Tourist Police, and the Department of Tourism. Intermediaries were to be eliminated and tour operators were held legally responsible for their clients throughout a trip.

Shutterstock
But none of that worked.
“The scam continued due to lax punitive action,” said Manoj Kumar KC, chief of the CIB, during a recent interview with the Post. “When there is no action against crime, it flourishes. The insurance scam too flourished as a result.”
The current investigation was triggered on September 26, 2025, when a citizen group called Deshbhakta Gen Z filed a fresh complaint with the CIB, prompting the bureau to reopen files that had gone cold for several years.
Why are insurance claims so hard to verify?
Most travel insurance policies require the insurer to be contacted before an evacuation takes place. In the Himalayas, in altitudes where communication is a challenge and many areas are without proper cellphone signals, this almost never happens. By the time an insurer is notified, the evacuation is already complete, the patient is in a hospital hundreds of miles away in Kathmandu, and a local rescue company or trekking operator has already begun preparing the paperwork.
Large insurers maintain their own 24/7 emergency response teams, while smaller ones contract this to global assistance companies. When a case arrives from Nepal, these companies typically contact a local Nepali assistance company to review invoices, medical reports, and flight manifests on their behalf.
This is where the fraud is most easily hidden. The local assistance company operates within the same commercial ecosystem as the hospitals and rescue operators. The insurer, based overseas, is relying on local business partners to validate documents that those same intermediaries may have helped produce.
The rescue company’s incentive is to maximise the number of passengers on each flight while billing each insurer separately. The trekking company’s incentive is to refer cases to rescue operators who pay the highest commissions. The hospital’s incentive is to admit patients, perform unnecessary procedures, and maintain referral relationships with the operators who send them business. At no point in this chain is there a party whose interests are aligned with the insurer paying the claim.
The charges that were filed earlier this month could send a strong signal. On March 12, 2026, the CIB charged 32 individuals with offences against the state and organised crime. It has arrested nine people and the remaining are said to be absconding. Among those charged are operators and staff from three helicopter companies: Mountain Helicopters, Manang Air (since rebranded as Basecamp Helicopters), and Altitude Air. It has also charged physicians and administrators from Swacon International Hospital, Shreedhi International Hospital and Era International Hospital.
The case records include CCTV footage confirming that foreign tourists reported as critically ill were filmed drinking beer at a cafe run by one of the charged physicians, at the time their medical records show them receiving hospital treatment.
What does this mean for Nepal’s trekking industry?
For international insurers, tour operators and trekking agencies that send tourists to Nepal, the investigation and its findings raise uncomfortable questions. The fraud documented by the CIB was not the work of a few rogue actors – it was a structured, commission-based network that operated openly for years, involved licensed medical professionals who vouched to serve patients, and registered companies that processed hundreds of millions of rupees through formal banking channels.
The reforms that were announced after the scam was discovered in 2018 were well intentioned, but they were never enforced. Whether the current prosecutions produce a different outcome will depend in large part on whether Nepal’s courts impose penalties severe enough to alter the commercial calculus. It also depends on whether the Department of Tourism builds the verification infrastructure to catch inflated claims before they are paid. With a new government sworn in this week, all eyes will be on how incidents like this will be treated and whether investigations and their findings will reach a meaningful conclusion.
Many peaks in the western US are in that range. Lots more with several exceeding if you include Alaska in “the western US”.
As a precaution (having read about it on forums) I had taken an additional insurance from a French shop specialized in hiking and mountaineering (le Vieux Campeur) to cover more events.
Good thing I did because I ended up having to be evacuated for something that was initially considered as acute altitude sickness and turned out to be a lot more life threatening once in the hospital.
Even if you don't feel it, the altitude still makes a difference, though. I recall doing two-a-day hell weeks at Big Bear at the end of summer cross-country training in high school and there was a 5k up there at the end of that week. We all got worse times than typical at sea level, and somewhat amusingly, I recall a high school senior from Rim of the World High School (who lived up there) getting 2nd place overall the first year I ever competed in that race, beating way more seasoned competitors just because he was used to the altitude.
It works in reverse, too. There was an officer in my Armor Basic Officer Course from Colorado who gave himself rhabdo during the two-mile test the first week we in-processed, apparently because he was so used to altitude that he hadn't quite acclimated to Fort Knox atmosphere.
Contiguous means the 48 connected (contiguous) states. It never includes Alaska.
And even though definitionally/officially continental could include it (it's in the same continent), in common use "continental US" is not meant to include Alaska either.
Other amusing things from that trip: we went up there the 3rd of July, and it snowed. We charged the car in Colorado Springs before we left, got up to the peak with 36% battery remaining. My wife worried we wouldn't be able to make it back. Got back to CS with ~70% battery left.