A veterinarian is a licensed doctor of veterinary medicine who diagnoses disease, forms a prognosis, prescribes treatment and performs surgery — the four acts that belong to them alone and cannot be delegated to anyone else on the team.
Around that legal core sits an enormous range of practice: companion-animal general practice, emergency and critical care, specialty referral, equine and food-animal work, shelter medicine, research, industry and public health.
What only a veterinarian can do
Start with the boundary, because it defines everything else about how a practice is staffed.
Four acts are reserved to the licensed veterinarian in state practice acts: diagnosis, prognosis, prescribing medication or treatment, and surgery.
No credential held by anyone else on the team unlocks them — not a credentialed technician, not a specialty-certified technician, not an experienced assistant.
That reservation is the reason the supervision system exists.
Everything a technician or assistant does clinically is delegated work performed under a level of supervision the state defines, and the veterinarian remains responsible for it.
If you are staffing a practice, the practical question is never "who can do this task" in isolation — it is what may be delegated, to whom, and at what level of supervision.
The delegation side of that is covered from the team's perspective in the supervision guide.
What does a veterinarian do day to day?
In companion-animal general practice, the day is built around an appointment book: wellness examinations and vaccination, working up sick patients, interpreting diagnostics, and a surgical block that typically runs spays, neuters, dentals and mass removals.
Threaded through all of it is the part that does not appear on a schedule — communication.
Explaining a diagnosis, presenting treatment options against what an owner can afford, and having end-of-life conversations are a substantial share of the working day, and they are the part new graduates most often report being least prepared for.
There is also a management layer that grows with seniority: directing the technical team, reviewing records, maintaining controlled-substance compliance, and in many practices carrying some responsibility for the numbers.
The financial conversation is clinical work
Practice types: small animal, mixed, large animal, equine
The species you work on shapes the job more than almost any other choice.
Small animal — companion-animal practice, dogs and cats predominantly — employs the largest share and is what most people picture.
Clinic-based, appointment-driven, predictable premises.
Mixed practice covers both companion and farm species, usually in rural areas, and typically involves ambulatory work — driving to patients rather than receiving them.
Large animal and food animal work is production medicine: herd health, reproductive work, and regulatory responsibilities, often with a strong preventive and economic dimension rather than an individual-patient one.
Equine practice is its own world — heavily ambulatory, physically demanding, seasonal, with lameness and reproductive work at its centre and a client base that is unusually knowledgeable.
Beyond private practice: shelter medicine, laboratory animal medicine, zoo and exotics, government and regulatory roles, academia, and industry.
General practice, emergency, or specialty
Within small-animal work, this is the fork that most shapes a career, and it is largely settled in the first few years.
General practice runs on an appointment book and continuity of care — you see the same patients over years, and the caseload spans wellness through chronic disease and routine surgery.
Emergency and critical care is triage-driven and shift-based, with nights, weekends and holidays as the structural norm rather than an occasional imposition.
The medicine is more acute, the pace higher, and compensation typically reflects the shift structure — see what an emergency veterinarian does for the credentials, pace and pay specific to that track.
Specialty referral requires an internship and residency and board certification — several additional years at reduced pay in exchange for a narrower, deeper caseload and a different earnings curve afterwards.
There is also relief work: covering shifts across multiple practices on a contract or per-diem basis rather than holding a staff position.
It is a growing part of the market and prices very differently from employment.
DVM or VMD — is there a difference?
No, beyond the letters. DVM is Doctor of Veterinary Medicine, awarded by every accredited US veterinary school but one. VMD — Veterinariae Medicinae Doctoris — is awarded exclusively by the University of Pennsylvania School of Veterinary Medicine, which has used the Latin designation since its founding, consistent with several other Penn professional schools.
The curricula are both AVMA-accredited and equivalent in scope.
VMD graduates sit the same national examination, qualify for licensure in every US state and territory, and practise with the same legal authority.
Employers, licensing boards and postgraduate programmes treat the two identically.
If you see both after a name in a practice's staff list, you are looking at where someone went to school, not at a difference in qualification.
How you become a veterinarian
Three gates, and the first is the long one.
An AVMA COE-accredited veterinary degree
A DVM or VMD from a college accredited by the AVMA Council on Education. The college must be COE-accredited at the time you graduate — that is the eligibility condition, not merely that it is accredited now.Pass the NAVLE
The North American Veterinary Licensing Examination, developed and managed by the International Council for Veterinary Assessment (formerly the NBVME). It fulfils a core licensure requirement in every US and Canadian jurisdiction. The COE expects 80% or more of each college's graduating seniors sitting the NAVLE to have passed by graduation. See the NAVLE explained in full for item count, fees, testing windows, retake limits and the actual pass rate.Obtain a state licence
Licensure is granted by the state, not by the exam. Most states add their own requirements — commonly a jurisprudence examination on that state's practice act — on top of the NAVLE.
Foreign-trained veterinarians reach the same endpoint by a different route, through an AVMA-recognised equivalence pathway before sitting the NAVLE.
The full sequence — prerequisites, VMCAS, exact NAVLE structure, and how state licensing diverges — is covered step by step in how to become a veterinarian.
Beyond licensure, an internship — typically a rotating year at low pay — and then a residency of several years lead to board certification in a specialty.
Neither is required to practise, and whether an internship is worth taking is one of the more consequential early-career decisions in the profession.
What it pays
The Bureau of Labor Statistics puts the median at $130,100 a year, with the middle half of veterinarians earning between $101,460 and $166,120.
The bottom tenth earn $73,920 or less; the top tenth $215,700 or more.
That spread is wide, and it is wide for structural reasons rather than noise.
Practice type, ownership stake, geography, and — above all — how the compensation is structured account for most of it.
A large share of veterinarians are paid on some production formula rather than a flat salary, which means two DVMs with the same title can earn very differently depending on caseload and how the formula is written.
The other half of the picture is the debt-to-income question.
Veterinary education is expensive relative to what the profession pays, and the resulting ratio is the single most-discussed economic issue in veterinary medicine.
National figures, May 2025