Jonathan L. Held, M.D.
Ayer and Westford Dermatology
Ayer, Westford, MA


Board Certification
American Board of Dermatology 1990

Residency Training
Clinical Research Fellow,
Photosensitivity and Porphyria Unit,
Rockefeller University, New York, NY
1989 - 1990
Resident, Dermatology,
Columbia University Medical School,
New York, NY
1987 - 1990
Intern, Internal Medicine,
Cornell University Medical School,
New York, NY
1986

Medical School
Dartmouth Medical School, Hanover, NH
Alpha Omega honors
M.D., 1985

Undergraduate School
Dartmouth College, Hanover, NH
Summa Cum Laude, Phi Beta Kappa
B.A., 1981

Faculty Appointments
Associate Physician, Laser Center, Division of Dermatology,
University Of Massachusetts Medical School and Medical Center
1993 - 1998

Hospital Affiliations
Emerson Hospital, Concord, MA
Deaconess-Nashoba Hospital, Ayer, MA
HealthAlliance Hospital, Leominster, MA and Fitchburg, MA

Professional Memberships
American Academy of Dermatology
Massachusetts Academy of Dermatology
Quinsigamond Dermatology Society

Jonathan L. Held, M.D