Top Doctor

Aaron K. Styer


CCRM Fertility is a global pioneer in fertility science, research and treatment, offering access to a network of award-winning fertility doctors, a full suite of fertility services, innovative technologies and cutting-edge labs. CCRM proudly operates 11 state-of-the-art IVF labs and 25 fertility clinics across North America. CCRM specializes in the most advanced fertility treatments, with deep expertise in IVF, fertility assessment, fertility preservation, LGBTQ family building, genetic testing, third party reproduction and egg donation.

List the treatments and procedures you offer:

Donor Egg Collection

Donor Eggs

Donor Sperm

Egg Freezing

Embryo Cryopreservation

Female Infertility

Fertility Assessment

Fertility Preservation

Fertility Testing

Fluid Contrast Ultrasound

Genetic Counseling Services

Hereditary Cancer & Disease Prevention


In Vitro Fertilization (IVF)

Infertility Evaluation

Infertility Treatment

Intra Uterine Insemination (IUI)

Intracytoplasmic Sperm Injection (ICSI)

LGBTQ Family-Building

Male Factor Infertility


One Day Work-Up

Ovulation Induction

PGT for Aneuploidy (PGT-A)

Preimplantation Genetic Testing for Monogenic (Single Gene) Disorders (PGT-M)

Previous IVF Failures

Recurrent Miscarriage

Sperm Cryopreservation

Sperm Freezing


Testicular Sperm Extraction (TESE)

Third Party Reproduction


Unexplained Infertility

Awards or Certifications


Boston Magazine Top Doctor 2019, 2020

Castle Connolly Top Doctor 2018, 2019. 2020

Vitals.com Patient’s Choice Award

Vitas.com Most Compassionate Doctor Award

Vitals.com On time and Promptness Award

Harold Amos Faculty Diversity Award-Harvard Medical School

Board Certifications

American Board of Obstetricians and Gynecologists: Obstetrics and Gynecology

American Board of Obstetricians and Gynecologists: Reproductive Endocrinology and Infertility

What's your background, education and training?

Dr. Aaron K. Styer is a reproductive endocrinologist, founding partner, and co-medical director of CCRM Boston. He is board certified in obstetrics and gynecology and the subspecialty, reproductive endocrinology and infertility.

He has been honored with Boston Magazine’s Best of Boston Top Doctor in 2019 & 2020, the 2018, 2019, 2020 Castle Connolly Top Doctor Award, Most Compassionate Doctor Award, and Patient’s Choice Award by his patients and peers. Dr. Styer’s primary goal is to provide compassionate and individualized care based upon attention to detail, accurate diagnosis, and empathy to the stressors of infertility. He is well-known for his collaborative and responsive approach of listening to your questions and needs and for selecting the most ideal treatment options based upon your unique circumstances. With his clinical expertise and warm, personable manner, Dr. Styer will use evidence-based treatments and the innovative technology at CCRM to personalize your care.

Dr. Styer received his undergraduate degree in biology from Duke University and his medical degree from Vanderbilt University School of Medicine. He completed residency in the Harvard Integrated Program in Obstetrics and Gynecology at Brigham and Women’s Hospital and Massachusetts General Hospital (MGH). He completed a clinical fellowship in Reproductive Endocrinology and Infertility at MGH/Harvard Medical School, and previously practiced at MGH for more than a decade. He is a staff physician at Beth Israel Deaconess Medical Center, Newton Wellesley Hospital, and Metrowest Medical Center, and is an Associate Professor of Obstetrics, Gynecology, and Reproductive Biology at Harvard Medical School.

Within New England, Dr. Styer serves on the Board of Directors for Resolve New England and Fertility Within Reach, where he works to improve access to fertility treatment and to expand emotional and educational support for patients. He is active nationally in patient outcomes research and patient education, and serves on several committees in reproductive medicine that direct national clinical care standards. He has served as Co-Chair of Society of Assisted Reproductive Technology Clinical Online Reporting System (SART-CORS) research committee and is an active member of the Task Force of the Practice Committee and Patient Education Committee of the American Society for Reproductive Medicine (ASRM). He serves as an oral board examiner for the American Board of Obstetrics and Gynecology (ABOG), where he examines physicians seeking board certification in reproductive endocrinology and infertility.

Dr. Styer is nationally recognized for his expertise, research, and invited lectures in elective single embryo transfer, predictors of IVF success, LGBTQ family building, egg freezing, egg donation, and fertility outcomes in women with uterine fibroids and endometriosis. He has published more than 75 original abstracts, research articles, review articles, invited editorials, and book chapters (Dr. Styer’s publications are available on PubMed). He has been interviewed locally and nationally in the Boston Globe, Good Morning America.com, The New York Times, Newsweek, Cosmopolitan, Allure, Marie Claire, and Self for topics regarding infertility, pregnancy, and egg freezing.

What do patients have to say about you?

“My wife and I had the great pleasure of meeting Dr. Styer a few months ago to help us get pregnant. We are both in the healthcare field and we can easily say that our care at CCRM has been the best we have experienced as patients and as healthcare providers. Dr. Styer has a knowledgeable, compassionate, and thoughtful bedside manner that is truly refreshing. He and his team always made time for us if we had additional questions and always made us feel so comfortable. The clinic and staff were so welcoming and our care has been top notch. The fertility journey has been challenging for us over the past few years. However, Dr. Styer has truly shown us what is means to “care” for patients. He has been so enthusiastic and our confidence in our chances for pregnancy have been bolstered immensely. His care of us has been second to none. He is an incredible fertility doctor and we recommend him and CCRM to anyone who is looking for a clinic where you want truly excellent care.”

“I came to Dr Styer after 2 failed IVF cycles with another clinic. I got pregnant on the first attempt with Dr Styer. Aside from the positive result, Dr Styer restored a lot of lost confidence that had been gone for a long time in the brutal IVF process. At times he felt more like a therapist than a doctor, talking me through every step of the journey and being incredibly sympathetic when I felt hopeless or anxious. I remember getting my last ultrasound with him when I was 6 weeks pregnant, and feeling nervous that I may not ever receive that level of comfort and care from a doctor again! Dr Styer is truly the best for fertility. 5 out of 5.”

I had a fantastic experience at CCRM Boston! Dr. Styer conveyed genuine warmth and care the entire time. He explained things clearly and answered my many questions very patiently. He has a great sense of humor, often laughing with me at my nervous jokes and stories. He called me personally with the news of the positive pregnancy test, and sounded just as excited as I was. The nurses and techs were kind, knowledgeable, helpful, and accessible. I had no problem getting appointments and did not have to wait long. It's a welcoming and friendly environment. I would recommend it to anyone dealing with infertility.

Hours of operation

Monday-Friday: 7am – 4pm

Mondays and Tuesdays new patient consultations available until 6pm.

Insurances Accepted



Allways Health Partners

Blue Cross Blue Shield



Harvard Pilgrim


Passport Plan





*Not all Tufts plans are in-network. CCRM is out-of-network with Tufts Health Direct, Tufts RI Together, Tufts Together or Tufts Unify.


Top Doctor: 2019, 2020, 2021


Primary Hospital: CCRM Fertility Boston


Fertility Testing, Infertility Treatment, Intra Uterine Insemination (IUI), In Vitro Fertilization (IVF), LGBTQ Family-Building and Egg Freezing.