- About
- Specialties & Areas of Expertise
- Locations & Patient Information
- Education & Research
- Accepted Insurance
- External Professional Relationships
Nicholas Maassen, MD, is an expert orthopaedic surgeon who specializes in elbow and shoulder injuries. Dr. Maassen’s primary focus is treating patients suffering from soft tissue (muscle, tendon and ligament) injuries, shoulder/elbow arthritis, and fractures in the upper extremity.
Dr. Maassen combines his clinical expertise with on-going investigative research efforts in the hopes of pioneering techniques and therapies that improve care for patients with complex orthopaedic disorders and injuries. Currently, Dr. Maassen is evaluating repair techniques for rotator cuff tears and shoulder instability so he can offer a wide range of quality treatment options. He has also been published in a number of highly respected journals, including the Journal of Shoulder and Elbow Surgery, Arthroscopy, Journal of Orthopaedic Trauma and Journal of Bone and Joint Surgery.
Specialties
Areas of Expertise
- Arthroscopic Shoulder Surgery
- Elbow Surgery
- Shoulder Surgery
- Shoulder Injuries
- Shoulder Instability or Dislocation
- Shoulder Tendonitis
Board Certifications
- Orthopaedic Surgery
Practicing Since
- 2014
Languages Spoken
- English
Medical Education
- University of Wisconsin School of Medicine and Public Health
Internship
- University of Wisconsin Hospitals and Clinics
Residency
- UW Health University Hospital
Fellowship
- Beth Israel Medical Center
Memberships & Medical Societies
- American Shoulder and Elbow Surgeons
- Mid-America Orthopaedic Association
- American Association of Orthopaedic Surgery
News & Research
Insurance
- Aetna Better Health *see insurance page
- Aetna HMO (specialists only)
- Aetna Medicare Advantage HMO & PPO
- Aetna POS
- Aetna PPO
- BCBS Blue Precision HMO (specialists only)
- BCBS HMO (HMOI) (specialists only)
- BCBS Medicare Advantage HMO & PPO
- BCBS PPO
- Cigna HMO
- Cigna POS
- Cigna PPO
- CountyCare *see insurance page
- Humana Medicare Advantage Choice PPO
- Humana Medicare Advantage Gold Choice PFFS
- Humana Medicare Advantage Gold Plus HMO
- Medicare
- Multiplan PPO
- PHCS PPO
- United Choice Plus POS/PPO
- United Choice HMO (specialists only)
- United Options (PPO)
- United Select (HMO & EPO) (specialists only)
- United W500 Emergent Wrap
- University of Chicago Health Plan (UCHP)
Our list of accepted insurance providers is subject to change at any time. You should contact your insurance company to confirm UChicago Medicine participates in their network before scheduling your appointment. If you have questions regarding your insurance benefits at UChicago Medicine, please contact our financial counseling team at OPSFinancialCounseling@uchospitals.edu.
Some of our physicians and health professionals collaborate with external pharmaceutical, medical device, or other medical related entities to develop new treatments and products to improve clinical outcomes for patients. In some instances, the physician has ownership interests in the external entity and/or is compensated for advising or speaking about the entity’s products or treatments. These payments may include compensation for consulting and speaking engagements, equity, and/or royalties for products invented by our physicians. To assure objectivity and integrity in patient care, UChicago Medicine requires all physicians and health professionals to report their relationships and financial interests with external entities on an annual basis. This information is used to review relationships and transactions that might give rise to potential financial conflicts of interest, and when considered to be significant a management plan to mitigate any biases is created.
If you are a patient at UChicago Medicine and would like more information about your physician’s external relationships, please talk with your physician. You may also visit the Centers for Medicare & Medicaid Services (CMS) Open Payments website at https://openpaymentsdata.cms.gov/ . CMS Open Payments is a national disclosure program that promotes a more transparent and accountable health care system. It houses a publicly accessible database of payments that reporting entities, including drug and medical device companies, make to covered recipients like physicians and hospitals.
Information in the CMS Open Payments database could potentially contain inaccurately reported and out of date payment information. All information is open to personal interpretation, if there are questions about the data, patients and their advocates should speak directly to their health care provider for a better understanding.