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Infectious Disease Doctor

The doctor other doctors call when nobody can work out what the infection is. Thirteen years of training for one of medicine's lower paydays.

Typical pay
$256,560a year
Time to qualify
13 to 14 yearsafter high school
Demand
Moderate
Licence needed
Yesregulated job

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  1. 1.MoneyWhat you earn and what it costs to get there.5 screens
  2. 2.EducationThe exact path from high school to qualified.5 screens
  3. 3.OptionalThings you don't need, but that help.3 screens
  4. 4.ExtrasDay to day, pros and cons, where you'd work.4 screens
  5. 5.FactoidsThings people don't tell you.4 screens

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Money

What you earn and what it costs to get there.

What the pay looks like

Median

$256,560

Bottom tenth

$73,570

Top tenth

$475,430

The national median is $256,560 a year and the bottom tenth sit near $73,570. Two honest warnings. First, this is the published figure for General Internal Medicine Physicians, the larger group this specialty sits inside, not for infectious disease alone. Second, the federal survey counts physicians who are employed and paid a wage, so doctors who are partners in their own practice are left out, and the low end mostly reflects part-time and very early career work.

One of medicine's worst pay puzzles

Extra training, less money

Infectious disease specialists often earn less than general internists

This is the field's open secret and the reason its training programs struggle to fill. You spend two extra years in fellowship and usually come out earning around, or below, what you would have made finishing at general internal medicine. The work is thinking and advising, and American medicine pays for procedures.

While you are training

About $65,000 to $95,000 a year

Resident and fellow salary, rising each year

You are paid from your first day out of medical school, but that is five years of residency and fellowship on long hours and night calls before an attending physician's salary starts.

What it costs to get there

Bachelor's degree, four years at an in-state public university
Roughly $10,000 to $16,000 a year in tuition and fees
Medical school, four years
Roughly $30,000 to $45,000 a year in-state public, considerably more at private schools
Admission test and applications
$1,000 to $3,000 for the MCAT (Medical College Admission Test), the application service and secondary applications
Licensing exams
Several hundred dollars for each of the three steps of the United States Medical Licensing Examination, plus board certification fees later
Roughly, all in
$167,000 to $310,000

Tuition, fees, exams and kit. Not rent, food or travel

The low end is four years at an in state public university at about $10,000 a year, then a public in state medical school at around $30,000 a year, plus the admission test, applications and the three licensing exam steps. The high end is the higher in state undergraduate rate followed by a private medical school at around $60,000 a year with a fuller application season. Residency and the infectious disease fellowship that follow are paid jobs, not tuition, so they add years but not cost. The Association of American Medical Colleges runs a fee assistance program that cuts admission test and application costs for students who qualify, and most graduates who borrow leave owing six figures, so interest matters here even though it is not in these numbers.

Most graduates leave medical school owing six figures. The Association of American Medical Colleges runs a fee assistance program that cuts admission test and application costs for students who qualify, and it is worth applying for before you spend a dollar.

Where the money comes back

  • Public Service Loan Forgiveness

    Ten years of payments while working full time for a nonprofit hospital, a public health department or a government agency wipes the remaining federal loan balance. Most teaching hospitals qualify, and this specialty lives in them.

  • National Health Service Corps and state repayment programs

    Pay down loans in exchange for working in an area short of doctors.

  • Hospital salary plus stipend

    Many infectious disease doctors are paid a base salary plus money for running the hospital's antibiotic stewardship or infection control program.

  • Research grants and academic appointments

    A large share of this field sits in universities, where part of the salary comes from grant funding.

  • Consulting and industry work

    Vaccine and antibiotic companies, and public health agencies, hire specialists as advisers.

Education

The exact path from high school to qualified.

The path

Thirteen years after high school, minimum, and every step is competitive.

  1. 1

    Bachelor's degree

    4 years

    Any major, as long as you finish the required biology, chemistry, physics and math courses. Grades and the admission test do the deciding.

  2. 2

    Medical school

    4 years

    Four years for a Doctor of Medicine or Doctor of Osteopathic Medicine degree. Two years of classroom science, two years rotating through hospital departments.

  3. 3

    Internal medicine residency

    3 years

    Three years of paid hospital training in adult medicine, matched through the national residency match. This is the base you specialize from.

  4. 4

    Infectious disease fellowship

    2 years

    Usually two more years, accredited by the Accreditation Council for Graduate Medical Education, focused on infections, antibiotics, immunocompromised patients and travel and tropical medicine.

  5. 5

    State license and board certification

    Months, ongoing renewal

    A medical license from the state you work in, plus board certification in internal medicine and then in infectious disease.

High school courses that help

  • Biology and chemistry

    Take both to the highest level offered. They are the spine of everything that follows.

  • Physics

    Required for medical school admission, so you will meet it either way.

  • Statistics

    Infectious disease runs on population data, outbreak curves and study design more than most specialties.

  • English and a language

    Half of this job is explaining a complicated infection to a worried family, often not in English.

Time and money, at a glance

Years after high school
13 to 14
Admission
Very competitive; high grades plus the MCAT (Medical College Admission Test)
Total tuition
Often $160,000 to $250,000 across college and medical school, in-state public
Paid while training?
Yes, from the start of residency, at roughly $65,000 to $95,000 a year

Licensing is state by state

There is one national exam sequence, the United States Medical Licensing Examination, taken in three steps across medical school and residency. There is no national license. Each state medical board issues its own, and moving states means a new application, new fees and a wait. Board certification is separate again: it is granted by a national board, is not legally required to practice, and is required by essentially every hospital that would employ you.

Where people train

  • Any accredited medical school

    Where you go to medical school matters much less than people think. Where you do residency matters more.

  • Large teaching hospitals

    Infectious disease fellowships sit in academic medical centers, because that is where transplant, cancer and intensive care patients are.

  • The fellowship directory

    The Infectious Diseases Society of America publishes a directory of accredited fellowship programs and runs the match that places applicants into them.

Optional

Things you don't need, but that help.

Sub-paths inside the specialty

  • Transplant and cancer infections

    Caring for patients whose immune systems have been deliberately switched off. Highly specialized and in demand at big centers.

  • Antibiotic stewardship

    Running the hospital program that decides which antibiotics get used and when. Often comes with a leadership title and extra pay.

  • Infection prevention and hospital epidemiology

    Stopping infections spreading inside the building. Every hospital needs someone doing this.

  • Public health

    Outbreak investigation and policy at a city, state or federal health agency. A different pay scale and a different kind of day.

  • Travel and tropical medicine

    Malaria, dengue, parasites, and clinics for people going to or coming from other countries.

Nice-to-haves

  • A master's in public health

    Common in this field and often done during fellowship. It opens the outbreak and policy side.

  • Research experience

    Start in college. A published paper is close to expected for competitive fellowship spots.

  • A second language

    Spanish above all, and it matters more here than in most specialties.

  • Time abroad

    Global health placements are common, and tropical infection work needs people who have seen it.

You can stop one step earlier

If thirteen years is too many, the three-year internal medicine residency alone makes you a general internist or a hospitalist, and the pay is usually the same or better than an infectious disease specialist's. Some people do the fellowship anyway because they want the work, which is an honest reason and the main reason the field survives. Nobody enters infectious disease for the money.

Extras

Day to day, pros and cons, where you'd work.

A typical day

Mornings are consults: other doctors have patients with fevers nobody can explain, infections that are not responding, or cultures growing something odd. You read the chart, examine the patient, ask the questions everyone else skipped, and then look at the laboratory results yourself. Afternoons bring clinic patients on long-term antibiotics, a stewardship meeting about an antibiotic the hospital is using too freely, and the microbiology lab, where you look at plates and slides with the technologists. You spend more time reading and thinking than almost any other doctor in the building.

The honest trade-offs

The good

  • Detective work: you are the one called when the diagnosis is a puzzle
  • Fewer procedures and fewer emergencies than most hospital specialties
  • Skills that matter in outbreaks, public health and global health
  • Teaching hospitals mean teaching, research and loan forgiveness

The hard parts

  • Poorly paid for the training, and everyone in medicine knows it
  • Thirteen years minimum before you are fully qualified
  • Hospital call, weekends and holidays; infections do not keep office hours
  • Long, sad cases: some patients you follow for years and still lose

Work life

Typical hours
50 a week, plus weeks on call
Remote work
Some, through telemedicine consults to smaller hospitals
Physical demand
Low, but long days on your feet
Unionized
Rarely, though resident physicians at some hospitals have unionized

Factoids

Things people don't tell you.

The fellowship is one of the few that does not fill

Most American medical training programs get more applicants than spots. Infectious disease is an exception: a large share of its fellowship positions go unfilled every year, because the two extra years of training usually do not buy a raise. Professional groups have been lobbying to change how the work is paid for exactly this reason.

You are the antibiotic police

Hospitals run antibiotic stewardship programs because overusing antibiotics breeds resistant bacteria, and federal rules now require those programs. The infectious disease doctor is usually the one who has to tell a surgeon that the drug they ordered is the wrong one.

The job changed in public in 2020

Before the pandemic most Americans had never met an infectious disease specialist. Applications to the field rose afterwards, though not enough to fill the training programs, and many specialists spent those years doing hospital planning and public briefings instead of seeing patients.

Antibiotics are running out faster than they are invented

Drug-resistant infections kill tens of thousands of Americans a year, and very few new classes of antibiotic have reached the market in decades, because developing a drug people are told to use sparingly is a bad business. Slowing resistance is a large part of what this specialty now does.

Where these numbers come from

Last checked September 2026. Pay figures are typical full-time annual amounts in United States dollars, based on Bureau of Labor Statistics wage data and published pay scales. They vary by state, employer and experience. Tuition is for in-state students at public schools unless the card says otherwise.