About Dr. Congdon and Our Advanced
Specialized Care Centers

Dr. David J. Congdon and his advanced specialized care centers feature a team of skilled, knowledgeable providers with decades of experience in their fields and extensive training and professional certifications and memberships. Drawing on this background, our team focuses on providing the highest level of care to you, the patient, in multiple specialty areas such as otolaryngology, skin, and hearing. Our main office location is located at 1753 West Ridgeway Avenue in Waterloo, Iowa, and we also offer outreach clinics in Waverly, Independence, and Grundy Center to better serve the surrounding communities.

This commitment to our patients is why we are a proud part of Cedar Valley Medical Specialists, P.C., an independent medical specialty organization located in Waterloo that provides affordable specialty services across multiple practice areas to the Cedar Valley area. To find out more about the background and expertise of our providers, keep reading.

David J. Congdon, MD, MPH, FACS

Dr. David J. Congdon has been dedicated to the specialized care of his patients since he began practicing medicine in 2003. That’s why he has opened five advanced specialized care centers right here in the Cedar Valley. He’s studied and practiced at some of the finest and most-respected medical and educational institutions, earning his MD from the Tulane University School of Medicine in New Orleans. He completed his medical internship and residency at the prestigious Mayo Clinic in Rochester, Minnesota, and his fellowship at the University of Rochester in Rochester, New York. Dr. Congdon is board-certified by the American Board of Otolaryngology for head and neck surgery and by the American Board of Facial Plastic and Reconstructive Surgery, Inc. His professional memberships include the American Academy of Otolaryngology-Head and Neck Surgery Foundation, Inc. and the American Academy of Facial Plastic and Reconstructive Surgery, and he is a Fellow of the American College of Surgeons. In addition to caring for his patients, Dr. Congdon enjoys spending time with his family and finding time for his favorite hobbies and passions, including ice hockey, sailing and stained glass art.

 

Graduate Education
Tulane University School of Public Health and Topical Medicine;
New Orleans, LA – Masters of Public Health & Health Systems Management, 1997

Medical Education
Tulane University School of Medicine; New Orleans, LA – MD, 1997

Internships
The Mayo Clinic; Rochester, MN – General Surgery, 1998

Residency
Mayo Clinic; Rochester, MN – Otorhinolaryngology, 2002

Fellowship
University of Rochester; Rochester, NY – Facial Plastic and Reconstructive Surgery, 2003

Board Certifications
American Board of Otolaryngology-Head and Neck Surgery, 2003
The American Board of Facial Plastic and Reconstructive Surgery, Inc., 2006

Professional Memberships
Fellow, American College of Surgeons
American Academy of Otolaryngology-Head and Neck Surgery Foundation, Inc.
American Academy of Facial Plastic and Reconstructive Surgery

Professional Interests
Facial cosmetic surgery; skin cancer treatment and reconstruction; facial trauma;
endoscopic sinus surgery; balloon sinuplasty

Personal Interests
Spending time with family, ice hockey, sailing and stained glass art

Practicing Since
2003


Deborah S. Rieks, Doctor of Audiology

Undergraduate Education
University of Northern Iowa; Cedar Falls, IA – Bachelor of Arts in Communicative Disorders, 1990

Graduate Education
University of Northern Iowa; Cedar Falls, IA – Master of Arts in Audiology, 1992
Arizona School of Health Sciences; Mesa, AZ – Doctor of Audiology, 2003

Internships
University of Minnesota Medical Center

Other Certifications
Licensed Audiologist and Hearing Aid Dispenser
Professional Memberships
Iowa Hearing Association

Professional Interests
Advanced hearing aid technology, hearing loss and health aging.

Practicing Since
1992


Crystal Wilken, ARNP

Undergraduate Education
Allen College; Waterloo, IA – BSN, 2010

Graduate Education
University of Phoenix; Phoenix, AZ – MSN, 2012
Allen College; Waterloo, IA – Family Nurse Practitioner, 2014

Certifications
American Academy of Nurse Practitioners, 2014

Professional Memberships
American Academy of Nurse Practitioners
Society of PAs in Otorhinolaryngology – Head & Neck Surgery

Professional Interests
Nasal Polyposis Treatment & Management
Skin Cancer Diagnosis & Prevention
Hearing Loss, Tinnitus & Cerumen Impaction

Practicing Since
2014


Mary Margaret (Meg) Heatley, PA-C

Undergraduate Education
Allen School of Nursing; Waterloo, IA, 1980
University of Northern Iowa; Cedar Falls, IA – BA in General Studies of Nursing, 1988

Graduate Education
University of North Dakota, School of Medicine; Grand Forks, ND – Physician Assistant Graduate, 1994
The University of Nebraska Medical Center, College of Medicine; Omaha, NE – Masters Physician Assistant Studies – Specializing in Dermatology, 2007

Board Certification
National Commission on Certification of Physician Assistants, 1994

Professional Memberships
American Academy of Physician Assistants
Iowa Physician Assistant Society
Society of Dermatology Physician Assistants
The Society of Physician Assistants in Otorhinolaryngology Head and Neck (SPAO-HNS)

Practicing Since
1994


Tricia Thompson, ARNP

Undergraduate Education
Allen College; Waterloo, IA – BSN, 2001

Graduate Education
Allen College; Waterloo, IA – MSN, 2003

Board Certification
American Nurses Credentialing Center, 2003

Professional Memberships
Sigma Theta Tau – International Honor Society of Nursing
Iowa Nurse Practitioner Society
American Association of Nurse Practitioners
Nurse Practitioner Society of Dermatology Nurses’ Association

Personal Interests
Spending time with family, traveling, Amvets Riders, Iowa
Patriot Guard Riders

Practicing Since
2003