At Hudson ENT, PC, we believe that each doctor and patient become a team for treating an individual's ear, nose and throat problems. Our otolaryngologists (doctors who specialize in ear, nose and throat) spend most of their time listening to understand your concerns and responding with the best treatment options for you. With the help of our professional staff, they also follow up to make sure problems are resolved and your health improves. We want our patients to be informed about ear, nose and throat issues and treatments, because informed patients make better decisions about their health and well being.


That is why we've included an extensive section on this website covering common topics associated with ear, nose and throat diagnostics and treatments. We encourage you to look through these pages whenever you have an interest or concern related to ear, nose and throat health. 

We also know that convenience is important to your selection of an otolaryngologist. In these web pages you'll find information about Hudson ENT, PC's office(s), including directions to our office, hours, insurance policies and appointment scheduling. Please feel free to contact us with any questions you have or to request an appointment. We hope you'll find our practice offers the accessibility and personal commitment you look for from an ear, nose and throat specialist.




hearing loss, ringing/tinnitus, swimmer’s & surfer’s ear, itching, rash, cysts & growths, dizziness, draining ear, ear tubes, Meniere’s disease, facial nerve & Bell’s palsy, eardrum perforation, ear Infections


balloon sinus procedure in the office, sinus infection & sinusitis, allergy testing, allergy shots, sublingual tablet therapy for allergy, obstructive sleep apnea, snoring, sleep disorders & breathing, deviated septum, nose fracture, nosebleed


cough, phlegm, hoarseness, swallowing & speech problems, hoarseness & professional voice, lump in throat, vocal nodules, laryngitis, sore throat


nasal endoscopy, laryngoscopy, myringotomy, balloon sinuplasty, tonsillectomy, nasal septoplasty, turbinate reduction, endoscopic sinus surgery, nasal endoscopy, maxillary antrostomy, ethmoidectomy


sinus congestion, allergies ear infections, hearing problems, snoring & sleep apnea, speech delay, tonsils & adenoids


growths, lumps and bumps, tumors, thyroid nodules & cancer, parathyroid problems, swollen glands


Full hearing testing for all ages: CAE, PTA, SDS, tympanogram, OAE, ECoG

Balance testing, including Video Balance Testing (VNG)

Hearing aid evaluations by our Audiologist

Care for the chronic ear: mastoid bowl cleaning, powder therapy

Endoscopic sinus cultures, minimally invasive sinus treatment

High-tech diagnostic evaluations for in-depth understanding of diagnoses – using micro-otoscopy, nasal endoscopy, laryngoscopy

Allergy “shots”



Dr Michael Kortbus

Michael J. Kortbus, MD, FACS

Hospital Affiliation: Columbia Memorial Hospital, Northern Dutchess Hospital 

Dr. Kortbus grew up in New York, and received his education at private schools in New England, including Tufts University School of Medicine. He was trained by leaders in the field of Otolaryngology at New York University Medical Center (NYU), Bellevue Hospital, Lenox Hill Hospital, Manhattan Eye and Ear Infirmary and the Manhattan Veterans Administration Hospital. He was also commended and respected by many as a clinical instructor during his time in the city.

After securing the highly competitive “ENT” residency at NYU, Dr. Kortbus was pleased to find that training and practice in this field included interaction with nearly every other medical specialty. While many believe ENT’s to be highly specialized, these doctors actually deal with problems that border on everything from dermatology to dentistry, from neurosurgery to acupuncture.

Dr. Kortbus chose Otolaryngology for several reasons. While in medical school, he noticed the happiest doctors were the ENT’s – a good reason to be intrigued. Also, as a young sufferer of allergies and tinnitus himself, he visited with these doctors. He was drawn to many aspects of the field – the doctors use the latest technology, such as microscopes and telescopes; perform surgery and manual techniques for care; have patients of all ages and genders; care for both chronic and acute problems; and are trusted with the most complex anatomy of the body: the head and neck.

When Dr. Kortbus is out of the office, his number one priority is spending time with his wife and four children. He also enjoys the outdoors, sports of nearly any variety, reading, travel and physical fitness – but not necessarily in that order!

Lauren Dierlam

Lauren Dierlam

Physician Assistant

Lauren Dierlam comes to Hudson ENT from NY Presbyterian Hospital/Columbia University Medical Center where she worked as a Hospitalist Physician Assistant. She graduated with a Masters of Science in Physician Assistant Studies from New York Institute of Technology in Westbury.

Lauren and her husband recently moved to the area with their cat, Hunter and dog, Rambo. All are enjoying the space and beauty of the Hudson Valley!

"I was born in Queens, NY and moved to Yorktown heights when I was 9 years old. I danced for many years through middle school, high school, and college. I was trained in ballet, modern, and Hawaiian and in college I was a choreographer for our student-run dance company (Le Moyne Student Dance Company at Le Moyne College). I always knew I wanted to go into medicine to help people and decided on being a PA in my senior year of college rather than medical school. I met my husband 9 years ago at a summer camp where we worked as counselors. We were married this past September and purchased our first home together that December. We currently live in lagrangeville with our German Shepherd named Rambo and rescue kitten, Hunter. We enjoy hiking, camping, boating, and most outdoor activities. We are looking forward to exploring more of duchess county but have already fallen in love with the area in our short time here."

Dr. Maureen Lynch-Rinaldi

Dr. Lynch-Rinaldi


Dr. Lynch-Rinaldi grew up in the Catskills of  New York State. She received her undergraduate and graduate degree from SUNY-Plattsburgh, and went on to receive her Doctorate degree in Audiology from the University of Florida. Numerous years in practice she has strived to provide exceptional diagnostic and rehabilitative care to individuals who are communicatively impaired or have vestibular or balance disorders.


Her career has included the direction of Speech and Hearing services, as well as Home and Center based Early Intervention. Diagnostic services include hearing evaluations, brainstem evoked potentials, electrocochleography, and balance assessments with ENG/VNG.

Rehabilitative services include, communication needs assessments, dispensing of digital hearing aid technology, and hearing conservation.


She is Board Certified by the American Board of Audiology,ABA, and is a Fellow in the American Academy of Audiology (F-AAA).  She also holds the Certificate of  Clinical Competence, (CCC),  from the American Speech and Hearing Association. She has been awarded the AAA Scholar award, the ASHA ACE award, and the Benedictine Hospital Centennial Mission Award.


She resides locally with her husband and teenage son. As a family they enjoy traveling.

Dr. Lynch-Rinaldi enjoys relaxing with a good book, or spending time quilting/crafting.

Heidi Martino


Medical Assistant

Hudson ENT Medical Assistant


Medical Assistant

Hudson ENT Office Manager

Kate Kortbus - Office Manager

Jessica - Receptionist

Hudson Valley Magazine

2015 - 2016 - 2017 - 2018 - 2019



"For Michael J. Kortbus, MD, FACS, an otolaryngologist affiliated with Hudson ENT ...  it all comes down to greatly improving quality of life for his patients".

 Hudson Valley Magazine

Minne & Joseph Kirsner Prize
Minne & Joseph Kirsner Prize
Certificate of appreciation
Most Compassionate Doctor
NY Residency Certification
Residency Certification

Office Location

7385 S Broadway #2

Red Hook, NY 12571 \\ Tel: (845) 758-1456


Opening Hours

Monday – Thursday  9:00AM – 4:30PM

Friday – 9:00AM – 3:30PM