When I read blogs about blockchain technology in the healthcare industry, I get mad. No, seriously. Marketing people with little to no understanding of blockchain keep praising how the technology will revolutionize medicine. They even use the same words as they did five years ago when talking about existing solutions for healthcare.
Where are all those innovations of blockchain in the medical field (beyond proofs-of-concepts), and why are they so scarce in real-life environments? What holds back the wide adoption of blockchain applications in medicine, and how should we use them to drive real value across the board?
If you are serious about blockchain and healthcare, here is the place to find the answers and explore notable blockchain use cases in healthcare.
Table of Contents:
- Blockchain Basics
- Advantages of Blockchain in Healthcare
- Blockchain in EHR Management
- Blockchain in Supply Chain Management
- Smart Contracts and Blockchain in Medical Research
- Claims Adjudication
- Care Network Automation
- How to Implement Blockchain in Healthcare
- Top 3 Blockchain Startups in the Healthcare Industry
- The Future of Blockchain in Healthcare
Blockchain can be thought of as a minified version of the internet where computers are connected to each other directly, without a central server. The reason they connect is to store data and carry out transactions with this data. What makes this setup different from any peer-to-peer network is its architecture that ensures that data on the blockchain remains:
- immutable (you can’t edit it once it’s been written)
- transparent (all blockchain participants have access to all transactions)
- tamper-proof (a transaction is added if the majority of participants thinks it’s valid)
- decentralized (the same replica of data is stored on every computer connected to the chain, and there’s no central authority to regulate the process)
- secure (every transaction is encrypted)
You also need to know that there exist two major types of blockchain: public and private, also known as permissionless and permissioned. The difference is public chains are open to everybody, e.g., anyone can join the Bitcoin network and start trading or mining Bitcoin, while private chains have control over who joins them.
Blockchain is also the underlying technology for CRYPTOCURRENCY, and a good many of blockchain-based projects revolve around digital tokens used to obtain services or goods on a chain.
However, the blockchain healthcare market isn’t too rich on crypto, probably due to the high volatility of cryptocurrencies. Nobody wants to pay for a dental filling and find out a couple months later they could buy a house now for the crypto they spent.
There are just a little over 20 healthcare-specific crypto tokens right now, dwarfed by over 4,500 digital currency tokens overall on the market.
Other terms you can often hear whenever blockchains are discussed include HASH, NODE, and LEDGER. Let’s quickly recap those too to avoid any ambiguity.
LEDGER (or distributed ledger), when used in the context of blockchain development, is basically the same thing as blockchain.
NODE is any computer connected to a ledger and taking part in computations and block adding.
HASH is just a string of characters that represents the contents of a block. Think of it as a unique identifier of this block. Every block contains a set of transactions confirmed by nodes, and it also includes a hash from the previous block to maintain integrity.
Advantages of Blockchain in Healthcare
If you ask Gartner, they believe that the golden age for medical blockchain technology will come around 2030. Note how crypto and “pure” blockchain have almost made it to the phase of real-life implementations, and medicine blockchain is still in the hype phase.
Is it really that bad? Do we need to wait another 10 years to see distributed ledger as part of the healthcare system and in healthcare app development in general? To make a long story short, there are some ways to cut through the chase and pioneer blockchain technology applications in health care. So sit tight, and let’s start with going through the list of all the things blockchain promises to elevate in medicine:
- democratized electronic health records
- streamlined transparent payments between patients, clinics, and insurers
- improvements to supply chains for drugs tracking
- medical research and clinical trials
I’d say these are more or less realistic goals worth exploring. Now, let’s see what’s feasible and what the biggest blockchain opportunities for health care are.
Blockchain in EHR management
If you’ve carefully read the blockchain basics above, you may already guess that technology-wise, blockchain holds both advantages and limitations for implementations in healthcare.
The first thing you’ll hear ledger proponents selling is it’s great for sharing electronic health records (EHR). So let’s see how this technology fares in this area.
Implementing blockchain-based EHR
The first impression is EMR (electronic medical records) and blockchain is a match made in heaven, right?
- providers securely access patient records
- patients get to decide who can work with their data
- data remains in sync between patients and providers
- data is encrypted and HIPAA compliant
What’s not to like? Well, there must be a reason why blockchain-based EHRs remain, for the most part, prototypes.
Now let’s see what skeptics of this blockchain application in healthcare have to say.
First of all, public blockchains are notoriously slow. For example, the Bitcoin chain can guarantee only 4-5 transactions per second, which is too few for the grandiose scale of the U.S. healthcare system.
This can be remedied by building private blockchains, but then the main advantage of having everybody on the same decentralized chain quickly evaporates.
Second, every transaction on a chain has a cost. If you want to spend Bitcoin on something, you need to chip away to pay for validating your transaction.
So if we’ve built an EHR and deployed it to, say, Ethereum (the second-largest blockchain), we now need to pay with Ether for every small edit we want to make to a patient record. Again, a private (aka permissioned) blockchain solves the issue as we can set the price of transactions to null.
Finally, any blockchain is a database, remember? For instance, Ethereum is expected to grow to 1 TB by 2025. This implies hardware costs for keeping the database on all participating nodes up-to-date.
Oh, and I almost forgot to mention that you’ll need to figure out the GDPR compliance if you decide to go global. This European regulation mentions the right to be forgotten. The bummer is distributed ledgers don’t allow removing or modifying patient data off the chain without extra shenanigans.
This may not be a challenge per se, but having patient records on a decentralized chain also presumes patients will need to self-manage their records, and this may be something not many of us are accustomed to.
Again, if you’ve followed along closely, you already understand that if not a cure-all, but quite a workable variant, is developing a private blockchain-based EHR solution. Such an approach will require all new members to authorize before they can start transacting on the platform.
In addition, you’d need to architect the blockchain to store only the meta-data on the chain while data (patient records with imagery and other files) stays in a secured cloud. That will increase the speed of operations within the EHR dramatically.
So in effect, when creating an EHR product using blockchain, you’ll be merging together blockchain and good old cloud technologies like Amazon Web Services via APIs.
Noteworthy use cases
Patientory is a blockchain-based EHR solution that avoids being called that and prefers the metaphor of a bridge connecting siloed medical and health record-keeping systems. The company takes a user-centric approach, connecting patients with care providers via a mobile app. Patients pay for storing their data on the chain with a proprietary cryptocurrency.
Medibloc is a startup working on several healthcare products, one of which is Dr.Palette — a blockchain-powered EMR that works through a mobile app for patients and provides a web interface for doctors.
Blockchain in Supply Chain Management
The next best thing distributed ledger technology can do for healthcare is to help us verify medicine’s origin and make sure we use legal, credible drugs from real pharmaceutical companies.
Apparently, the pharma industry keeps losing billions because of counterfeit drugs every year. So having a decentralized system tracking medicine throughout the supply chain where it’s nearly impossible to forge a drug definitely adds value.
Implementing blockchain-based medical supply chains
What makes blockchain so effective in this scenario is equal access of all participants to the ledger with the single truth source. In addition, a blockchain-powered solution helps improve:
- administrative operations
- transparency and traceability of intermediaries’ transactions
As with patient records, pharmaceutical supply chains present practically the same challenges. So a workable scenario is to build a permissioned blockchain with known participants.
Arguably, the biggest challenge is the sheer scope of such a project that would involve multiple companies realizing the mutual benefits from implementing ledger solutions into their supply chain operations.
Besides, the companies would need to apply IoT sensors to allow automatic detection and tracking of medicine every step of the journey.
Noteworthy use cases
LedgerDomain uses blockchain technology as the back end for its mobile applications that help deliver real medications to real patients. The solution provides real-time inventory, data management, verification, and more.
Medsphere’s HealthLine inventory and medical supply chain management solutions reduce labor costs, make inventory more precise and automatically capture more charges. The blockchain powers apps that utilize barcode and RFID technology to enable better medicine tracking.
Smart Contracts and Blockchain in Medical Research and Clinical Trials
Smart contracts are simple programs coded right on a blockchain. They often have pretty straightforward if-then logic and can fire off another contract or execute a transaction automatically when predefined criteria are met.
Their autonomous nature makes smart contracts an ideal solution for gathering informed patient consent for participating in clinical trials. What this breakthrough technology is doing here is actually gathering consent from a patient and making it available for a myriad of participating researchers.
Furthermore, the crypto-economy potential of blockchain technology literally asks for a marketplace for trading patient data and even biosamples to aid medical research.
Since smart contracts execute automatically, and a patient’s consent becomes available to all chain members immediately after signing, we’re stuck with a private blockchain variant again.
Noteworthy use cases
Doc.ai, a Palo Alto startup acquired by Sharecare recently, focuses on enabling remote clinical research with a mobile app on a decentralized ledger. The app is set up with multi-omics modules to optimize data collection, and the built-in AI capabilities help analyze incoming patient data.
Nebula Genomics has built a decentralized platform for enabling their users of DNA sequencing service to collaborate with medical research institutions while retaining ultimate control over their data.
Claim processing is one of the most time-consuming operations in the healthcare industry that can benefit from the blockchain.
First of all, a shared ledger secures all financial transactions by storing them in an immutable and transparent record. In addition to that, both payers and providers can track the status of claims in real-time. As a result, everybody benefits:
- clinical administrative costs go down
- claims are resolved faster
- prices for the patient shrink too
Implementing claims adjudication in healthcare
Smart contracts are an ideal tool for realizing claim adjudication on a blockchain. The typical approach would be to connect smart contracts to real-life circumstances via specialized oracles or hook them to a data hub with an API.
The biggest challenge is trust: every party joining such a blockchain needs to absolutely trust other participants. On top of that, since this technology implementation requires complete transparency and change of internal workflows for insurance companies, significant investment in personnel training will be required.
Noteworthy use cases
Chronicled enables wholesalers with manufacturer business rules to enforce accuracy and automatically adjudicate chargebacks. Returns, credits, and resubmissions are processed by smart contracts on the chain and remain tied to the original chargeback and invoice.
Care network automation
There’s also an interesting group of blockchain medical applications seeking to automate and streamline interactions among all care networks: patients, providers, and health insurance companies.
Solutions like Solve.Care and Health Nexus focus on providing building blocks and pluggable solutions for migrating the entire spectrum of medical operations to the blockchain.
Not only do such platforms often include a cryptocurrency, but they also provide instruments for creating decentralized apps (or dapps) right on their platform. Using these applications, patients and providers can solve pretty much any medical operational challenges, for example:
- appointment scheduling
- billing and payments
- claims processing
Noteworthy use cases
The Solve.Care platform uses blockchain as the underlying technology for coordinating care, benefits, and payments between patients, doctors, insurers, labs, pharmacies, etc. The solution also includes a crypto token for transparent transactions on the chain — Solve.coin.
How to Implement Blockchain in Healthcare
As you can see, medical blockchain technology can take different forms and manifest through various applications: web, mobile, desktop, etc. Please note that when you start blockchain implementation in healthcare, there will always be:
- a back end piece
This naturally includes the blockchain itself and additional server databases and APIs (depending on your solution’s actual architecture).
- front end piece
This is a customer-facing application, which can be web, mobile, or both.
Let’s take a look at the tech side of things and think about the technology stack you will need to build a product that leverages all the benefits of blockchain in healthcare.
Blockchain tech stack
To create the backbone of a healthcare blockchain solution, you will need to use one of the open-source blockchain projects. One of the most prominent players in this field has been Hyperledger. It’s an umbrella project by Linux that includes various open-source tools, libraries, and other tech bits for creating distributed ledgers.
Of course, you can always just copy an existing open-source blockchain, e.g., Ethereum, make necessary changes, deploy to nodes, and start running a private Ethereum-based blockchain just like that. However, using the Hyperledger arsenal tools, you can create a far more advanced solution quicker by reusing ready components, e.g., advanced cryptography.
Other alternatives to Hyperledger include IPFS, Corda, IBM Blockchain Platform, and BigChainDB, among others.
Finally, you could go nuts and build out your own blockchain protocol from scratch, but good luck proving the case to investors.
As for custom developing mobile and web applications sitting on top of your blockchain protocol that customers interact with — these can use technology stack at all.
So, for instance, with mobile, you are free to pick React Native for cross-platform mobile development or go native with Kotlin/Swift.
For a web app, you could choose something as conservative as Angular or Ruby or go with React and Node — virtually anything will work if you know how to connect it with the ledger component.
All top cloud providers have services tailored explicitly for blockchain products.
Top 3 Blockchain Startups in the Healthcare Industry
What are the most well-funded blockchain healthcare startups working on distributed medical ledger projects today? Besides those mentioned in use cases above, we have:
- PokitDok — $53.3M
- HealthVerity — $42.2M
- MedicalChain — $24M
PokitDok is one of the blockchain healthcare companies working on a platform for interoperable healthcare transactions. Its blockchain-powered software facilitates:
- eligibility checks
- claims submissions
- appointment scheduling
- payment optimization
- patient identity management
- pharmacy benefits
The company was acquired on the verge of 2019 by Change Healthcare. The latest endeavor by Change Healthcare is a ledger-based new solution for Covid vaccine certification that will help patients to have verifiable proof they’ve been inoculated. That’s probably the best application of PokitDok achievements for public health.
HealthVerity provides pharmaceuticals, payers, and hospitals with tools to discover, license, and integrate patient data from all sorts of data sources to create the optimal patient data set for distributed health.
Their ledger-based product features sophisticated identity resolution and matching capabilities, allowing the company to increase transparency through blockchain in the medical industry.
Medicalchain helps healthcare organizations apply blockchain to store shared patient records and maintain a single version of the truth. Participants request permission to access a patient’s record to serve their purpose and record transactions on the distributed ledger.
The Future of Blockchain in Healthcare
I think it’s more or less clear that the best case for blockchain in healthcare today is a private distributed EHR (integration) with robust cryptography and secure cloud data management architecture. Blockchain technology and healthcare still have a long way to go before we see drastic improvements and a real impact on people’s lives.
If you’re exploring options for increasing the value of care for your patients by using blockchain healthcare applications, schedule a call. One of our certified blockchain developers will be happy to review the solution’s feasibility and advise appropriately.
Frequently Asked Questions
Does HIPAA Compliance come out-of-the-box when we make a blockchain solution?
Yes, if you use tools like Hyperledger. Still, you need to ensure encryption is applied to all parts of your digital product: on and off the chain.
Can we create a cryptocoin that will be traded on a public blockchain and used to purchase services from our partners and us?
What are oracles?
Special APIs that connect distributed ledgers with off-the-chain data sources.
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