The 3 Main Medical School Applications Every Premed Must Know

Mar 31, 2021

There are three stages to the medical school application process: primary applications, secondary applications, and interviews. The primary application is the initial application a medical school receives. Secondary applications (a.k.a. supplemental applications) are school-specific applications sent to an applicant after the primary application has been approved. Finally, the interview is when you visit the school and get the chance to talk to the faculty directly. 

All U.S. medical schools use 1 of 3 application services: AMCAS, TMDSAS, and AAMCOMAS. Each medical school program only uses one application service. Knowing the difference between these three main medical school application services prior to applying can help you prepare for the different components of each application. In this article, we will discuss each of these medical school application services and the differences between them. 

American Medical College Application Service (AMCAS)

Used by: U.S. allopathic (M.D.) medical schools
Application Cost: $170 for first medical school. Additional medical schools cost $41 each.
Application opening date: AMCAS opens May 4, 2021.

AMCAS is the AAMC’s centralized medical school application service. Most M.D. medical schools located in the United States use AMCAS as their primary application method. 

Official AMCAS Website
AMCAS Application
List of medical schools that use AMCAS

Texas Medical & Dental Schools Application Service (TMDSAS)

Used by: Texas allopathic and osteopathic medical schools
Application Cost: $185 flat rate regardless of how many schools you apply to.
Application opening date: TMDSAS opens May 1, 2021

TMDSAS is the medical school application service for medical schools, dental schools and veterinarian schools in Texas. Medical school applicants can use TMDSAS to apply to medical schools in the state of Texas. 

Official TMDSAS Website
TMDSAS Application
List of medical schools that use TMDSAS

American Association of Colleges of Osteopathic Medicine Application Service (AACOMAS) 

Used by: U.S. osteopathic (D.O) medical schools
Application Cost: $196 for first medical school. Additional medical schools cost $46 each.
Application opening date: AACOMAS opens May 5th, 2021.

AACOMAS is the centralized online application service for the US osteopathic medical schools. 

Official AACOMAS Website
AACOMAS Application
List of medical schools that use AACOMAS

7 Ways to Force Yourself to Stay In and Study When You Have Zero Motivation

Exam season is coming up. Consequently, you have to dedicate the next few days to studying. The only problem is you’d rather do anything but study. Maybe the class you are studying for is not particularly interesting. Maybe you rather be socializing with...

Pre-med Summer Programs for Undergraduates – Updated 2023 List

Summer for pre-meds is the perfect time to venture out of the classroom! We have curated a list of pre-med summer programs all over the country with their most current website links, deadlines, and program dates. Med school admissions highly favor students who...

Secondaries Fees List | Medical School Applications 2023

In this article, we share a list of secondary application fees for M.D. medical schools in the United States. Medical school applications are expensive. From the AMCAS, TMDSAS, and AACOMAS primary applications, to secondary application fees, to interview flights and...

Ion Names – A List of Common Monatomic and Polyatomic Ions

This article discusses ionic nomenclature and common ion names for both monatomic and polyatomic ions and includes a list for reference. What is an ion? Before we discuss common ion names, let's talk about what an ion is. An ion is an electrically charged atom or...

Post-bacc vs. Masters – 2023 Comparative Guide – Premed

Many premed students often ask, what is the difference between a post-bacc and a master’s program? This guide will cover everything you need to know about the two.  It’s no secret that medical school is hard to get into. According to the Association of American...

How to Attend Medical School for Free

In this article, we will explore three main options that can help you to attend medical school for free or with minimal cost!

Emergency Medicine Research Programs for Undergraduate Students 2023

We curated a list of emergency medicine research programs open to undergraduates, post-baccalaureates, and other students interested in pursuing a career in the emergency department.  Are you interested in becoming an Emergency Room Physician or partaking in...

15 White Coat Ceremony Gift Guide – [2023 edition]

If you were invited to a white coat ceremony, congratulations! This is a momentous occasion for your loved one to receive his/her/their first white coat and commit to a lifelong career in medicine. Even if you just attended your loved one’s graduation from a...

AAMC PREView: The Ultimate Exam Guide in 2023

The AAMC PREview exam assesses your understanding of pre-professional behavior. As an entering medical student, your understanding of these behaviors is important so that you can be successful through school and into residency! AAMC PREview Exam overview  With a...

How to Get Shadowing Experience as a Premed

If you want to gain exposure to medicine but don’t have the time commitment to take on a full-time job, shadowing is a great way to show admissions boards that you are invested in medicine. In addition, you can give yourself the chance to determine whether the...