DoxGPT, Doximity's AI assistant now branded Doximity Ask, has become one of the most-used clinical AI tools in the US, and UK doctors keep asking what it is and whether they can use it. The short answer is that it is a capable, free tool, but it is built exclusively for verified US physicians and is not available in the UK. Here is what DoxGPT actually does, why it is US-only, how it compares with the other major clinical AI tools, and what UK clinicians can use instead. Access and features change, so confirm current details with Doximity.
Key takeaways
- DoxGPT, now Doximity Ask, is a free HIPAA-compliant AI assistant for verified US clinicians.
- It answers clinical questions with citations, includes drug monographs, and drafts clinical documents.
- PeerCheck adds physician review of AI answers, a genuine trust feature.
- It is US-only, tied to Doximity's US-physician network, and not accessible to UK clinicians.
- For UK clinical questions, a UK-guideline-grounded tool such as Ask iatroX is the relevant option.
What DoxGPT is
DoxGPT is the AI assistant inside Doximity, the professional network used by a large majority of US physicians. It is free for verified clinicians and HIPAA-compliant, meaning US users can include patient information within its safeguards. Its clinical features have grown substantially: it answers clinical questions with evidence-based, cited responses that link back to peer-reviewed sources, it includes a curated library of over three thousand drug monographs covering dosing, interactions and contraindications, and it drafts the administrative documents US clinicians spend hours on, such as prior authorisation letters, appeals, discharge summaries and patient education materials, including translation. The drug reference and much of the clinical grounding came through Doximity's 2025 acquisition of Pathway Medical.
PeerCheck and the trust layer
One feature is worth highlighting because it addresses a real weakness of general chatbots. PeerCheck is Doximity's physician-in-the-loop verification system, in which a large panel of physician experts evaluates and improves AI-generated answers for accuracy, evidence strength and bias. This is a meaningful attempt to govern clinical AI beyond raw model output, layering human clinical review over the automated answer, and it is one of the clearer examples of the physician-verification approach to trust. It does not make the tool infallible, and outputs still require clinical judgement, but it is a genuine differentiator from ungoverned general-purpose tools.
The Doximity ecosystem
DoxGPT does not sit alone. It is one tap away for physicians who already open Doximity daily, and it is surrounded by a workflow suite: Doximity Scribe for ambient note generation, Dialer for HIPAA-compliant calling that shows an office number rather than a personal one, a free digital fax service, professional networking, CME tracking and a jobs board. The strategic point is that the clinical AI is embedded in a platform US physicians already live in, rather than being a new app to adopt, which is a large part of why it has spread. The whole offering is free, funded by pharmaceutical and health-system advertising.
Is it available outside the US?
No, and this is the key point for UK readers. DoxGPT is tied to Doximity's network, which verifies and serves US clinicians, so access requires US medical credentials and is restricted to US-licensed physicians and other US healthcare professionals. There is no UK version, and a UK clinician cannot simply sign up. This is the same pattern seen across US clinical AI: the tools are built around US credentialing, US practice and US data rules, which do not transfer to the UK.
How it compares, and the UK alternative
Among US clinical AI tools, DoxGPT's distinctiveness is its physician network reach, its PeerCheck verification and its curated drug monographs, where OpenEvidence leans towards synthesising peer-reviewed literature and ChatGPT for Clinicians brings general model power without a physician-verification layer. All three, however, are US-centric and none serve UK clinicians with UK-specific guideline content, and OpenEvidence in particular withdrew from the UK and EU. For UK clinical questions, the relevant tool is a UK-native one: Ask iatroX answers grounded in NICE, CKS, SIGN and the SmPC with the source attached, as a UKCA-marked, MHRA-registered clinical tool available free. Try it at Ask iatroX. For a direct comparison of two US options, see ChatGPT for Clinicians vs DoxGPT.
Frequently asked questions
What is DoxGPT? DoxGPT, now Doximity Ask, is the free, HIPAA-compliant AI assistant inside Doximity for verified US clinicians. It answers clinical questions with citations, includes drug monographs, drafts clinical documents, and uses PeerCheck physician verification.
Can UK doctors use DoxGPT? No. DoxGPT is tied to Doximity's US-physician network and requires US medical credentials. There is no UK version, and UK clinicians cannot access it. UK-native tools grounded in UK guidance are the appropriate alternative.
Is DoxGPT free? Yes, it is free for verified US clinicians, funded by pharmaceutical and health-system advertising, along with the wider Doximity suite including Scribe, Dialer and fax.
What is PeerCheck? Doximity's physician-in-the-loop verification system, where a large panel of physician experts evaluates and improves DoxGPT's AI-generated answers for accuracy, evidence and bias. It is a genuine governance feature, though outputs still require clinical judgement.
What can UK clinicians use instead? For UK clinical questions, Ask iatroX provides answers grounded in NICE, CKS, SIGN and the SmPC with the source attached, as a free, UK-native, MHRA-registered clinical tool, which US tools like DoxGPT and OpenEvidence do not offer for UK practice.