A lot of schools have this information posted on their websites, you just have to search for it. Some schools, though, aren't very explicit. I e-mailed several of them and I cut and paste their responses below.
Isn't it odd how math is considered as part of BCPM, but a letter from a math prof isn't a science letter.
Here's my list...
Albany, NY
This email is being sent in response to your voice mail request for
information about our requirements for letters of recommendation. We
require either a premedical advisory committee letter, if your school has
such a committee, or letters sent by two (2) professors in whose classes
you have been enrolled for college credit. One of those letters must
be from a science instructor.
Albert Einstein NY
lets: 1sci,1major,1personal
U of Chicago Pritzker
A. A premedical committee letter alone will suffice as meeting the requirements for letters form you college.
B. If the Premedical Advisor takes sole responsibility in your college for writing on behalf of students, this will likewise suffice as meeting the requirements for letters.
C. If your college has neither a Premedical Committee nor a Premedical Advisor, submit three letters form faculty. At least two letters should be from science faculty who have had reasonably close contact with you. It is not helpful to have letters form instructors of large classes where little more than the final grade information is provided. Faculties from smaller, upper-level courses often are better able to provide you with helpful letters of recommendation.
D. Letters from other individuals who may know you as a research student or in a clinically related experience or extracurricular activity may add an additional dimension of understanding about you as a candidate. These letters are not required, and one should be judicious about the number submitted.
California, UC Los Angeles (Drew)
Three letters of recommendation
(from med admissions rep)2 science;
(phone) 3-5 letters, (2profs 1 other)
Cornell
They have to be from 2 science professor or a pre-med committee packet
if
you have one at your school.
Creighton, NE
1 sci; 1non-sci Jesuit school
Dartmouth, NH
two individual letters
Georgetown
two letters of evaluation from professors.
GWU
You must submit a minimum of three letters (but
not
more than five), two from science faculty familiar with your academic
work
and one from someone acquainted with your personal traits
Harvard, MA
We require a minimum of three letters and no more than six. We also require letters from all of your research supervisors as well as one from a non-science recommender.
California, Southern-Keck
two letters of recommendation from science faculty
Loma Linda, CA
If your school has a recommending committee letter or packet, that is
required. If not, a minimum of three letters of recommendation is
required.
Mount Sinai, NY
1sci;1non-sci letter
Stanford, CA
three complete letters of evaluation from persons who know the candidate well enough to evaluate his/her scholarly potential and promise as a physician
Tufts, MA
We require three individual letters (we don't specify authors) or a composite from your college.
California, UC San Diego
a minimum of three letters are required from faculty (senior professors) who can provide a well considered evaluation of your qualifications for the medical profession. (Two of the three must be from faculty at a four-year undergraduate institution in either the Departments of Biology or Chemistry. The third recommendation must be in humanities or social sciences. If you are currently in a graduate program, the third letter may come from your graduate professor.)
California, UC San Francisco
three letters of recommendation, including two letters from the applicant's instructors
California, UC Davis
3 letters, two from science faculty
"
California, UC Irvine
min of 4 letters. Prefer 5 profs or other. >=1sci
California, UC Los Angeles
(from med admissions rep)2 science; (phone) 3-5 letters, (2profs 1 other)
Rochester, NY
three letters
Wake Forest, NC
We prefer a committee report if your school has a premed committee. If
not, then we would like a science and a non science evaluation. We have
a form that comes with the secondary application on line. If your
school
has a letter service where the faculty have already sent their letters
we will accept that. If you have additional letters you would like to
send, we will accept those in letter form.
New York University
two letters from individual faculty members
MCP Hahnemann
2scilet;1nonscilet
NYMedical
three undergraduate professors (including at least two from science faculty)
Pittsburgh
three academic letters of recommendation
Saint Louis
three of your college or university teachers
Tulane
three individual, separate
letters of evaluation, two of which must be from professors of science under
whom you have studied and the third from a professor of your choice.
Vermont
3 faculty letters
Vanderbilt
3 faculty letters
Yale
three of the applicant's teachers, two of whom should be in science fields
University of Washington
A premedical committee evaluation or three letters from instructors (either sciences or humanities) from whom the candidate has taken courses