What patients are saying
Overall rating
5.00
Average wait time
4.81
Bedside manner
4.97
“Dr. Frenia is a great Dr. He is very knowledgeable about his field. He is very patient and explains everything. I look forward to my visits with him. ”
Ivan M.September 26, 2024
“The overall experience was excellent. The doctor fully understood why I came to see him. He took the time to fully explain the current picture of my health. He made sure I was aware of all the elements of my treatment going forward. I highly recommend his services to anyone else that is in need.”
mitchell S.September 10, 2024
About Dr. Douglas Frenia
At this time, our practice is not administering COVID-19 vaccinations. Please do not book an appointment for a COVID vaccination, as it will be canceled.
Please be aware that our offices at Saint Peter's have a $50 No Show fee. To avoid this charge, we kindly ask that you cancel or reschedule your appointment in Zocdoc at least 24 hours before your scheduled time. If you plan to use out-of-network insurance, you will be responsible for any costs not covered by your plan.
Dr. Douglas Frenia is a caring and concerned pulmonologist, sleep medicine specialist, and critical care specialist serving the communities of New Brunswick and Monroe, NJ. Dr. Frenia attended the Uniformed Services University of the Health Sciences, where he received his medical degree, and completed his residency and internship in internal medicine at the University of California, Davis, David Grant Medical Center, Travis. He also completed his fellowship in pulmonary and critical care medicine at National Capital Consortium, Walter Reed Army Medical Center. He also completed a fellowship in sleep medicine at Wilford Hall Medical Center, San Antonio.
Dr. Frenia is a part of Saint Peter's Healthcare. He is certified by the American Board of Internal Medicine in critical care medicine, pulmonary disease, and sleep medicine. He is also a member of the American Thoracic Society, the Golden Key National Honor Society, the Rho Chi Society, and the American College of Chest Physicians. Dr. Frenia’s medical experience is vast and impressive. His areas of special interest include pulmonary and critical care ultrasound, lung cancer diagnosis, endobronchial ultrasound, and electromagnetic navigational bronchoscopy.
Dr. Frenia is committed to helping his patients enjoy a healthier lifestyle. He works with each one to discuss ways they can make better choices for their health.
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In-network insurances
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Office location
Saint Peter's Univ Hospital, Dept. of Medicine
254 Easton Ave., CARES Bldg 4th Fl, New Brunswick, NJ 08901
Education and background
Practice names
Board certifications
- American Board of Internal Medicine
Education and training
- Medical School - Uniformed Services University of the Health Sciences, Doctor of Medicine
- Rutgers, The State University of New Jersey (Bachelor’s)
- Wilford Hall Medical Center, San Antonio, Fellowship in Sleep Medicine
- National Capital Consortium, Walter Reed Army Medical Center, Fellowship in Pulmonary and Critical Care Medicine
- University of California, Davis, David Grant Medical Center, Travis, Residency in Internal Medicine
Professional memberships
- American Thoracic Society
- American College of Chest Physicians
- Golden Key National Honor Society
- The Rho Chi Society, Alpha Eta Chapter
Awards and publications
- 1995-1996 Uniformed Services University Dean’s Award for Academic Excellence
- 2005 Army Commendation Medal
- 2006 Iraq Campaign Medal, Global War on Terrorism Expeditionary Medal
Languages spoken
- English
Provider's gender
Male
NPI number
1902969769
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Wait time
4.81
Bedside manner
4.97
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
40 reviews
Most relevant
The doctor is knowledgeable and easy to communicate. I highly recommend him.
July 28, 2025Fumio M.Verified patient
Doctor was professional. Great bedside manner. Nurses were great - and mostly - I have been helped with my problem.
More than 1 year agoPJ
Always feel comfortable with Dr. Frenia and appreciate his approach to treating my husband Brian
More than 1 year agoSK
Wonderful. Everyone was very nice The doctor was very helpful.
More than 1 year agoSC
Dr Frenia is a great doctor!
June 26, 2025Deb L.Verified patient
Excellent Dr.
June 18, 2025Stephen H.Verified patient
Everybody did a good job
November 13, 2024James G.Verified patient
Dr. Frenia is a great Dr. He is very knowledgeable about his field. He is very patient and explains everything. I look forward to my visits with him.
September 26, 2024Ivan M.Verified patient
Doctor is too good
September 17, 2024kamalakar C.Verified patient
The overall experience was excellent. The doctor fully understood why I came to see him. He took the time to fully explain the current picture of my health. He made sure I was aware of all the elements of my treatment going forward. I highly recommend his services to anyone else that is in need.
September 10, 2024mitchell S.Verified patient
Wonderful
January 9, 2024Malvina W.Verified patient
Excellent.
March 6, 2019John S.Verified patient
Totally knowledgeable and professional!
September 26, 2018Bennett M.Verified patient
Craing professional who looks at eveyrhing to come up with a viable solution for a patients medical problems and their concerns.
Highly recommend!
November 28, 2017Bennett M.Verified patient
Doctor and staff were very attentive to my problems. Reviewed a stack of notes, conducted a thorough examination, and recommended a plan of action.
August 8, 2017Bennett M.Verified patient
Very good
More than 1 year agoBK
Professional
More than 1 year agoAP
Dr. Frenia was very professional and made me at ease. His concerns about my health was well addressed. I am happy to continue seeing him.
More than 1 year agoVS
February 12, 2026Kenneth A.Verified patient
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September 25, 2024Michele H.Verified patient
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March 6, 2024David M.Verified patient
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May 11, 2021Barbara R.Verified patient
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April 13, 2016Robert P.Verified patient
How soon can I make an appointment with Dr. Douglas Frenia?
Generally, Dr. Douglas Frenia has appointments available on Zocdoc within 1 week. You can see Dr. Frenia's earliest availability on Zocdoc and make an appointment online.
Is Dr. Douglas Frenia accepting new patients?
Dr. Douglas Frenia generally accepts new patients on Zocdoc. You can see Dr. Frenia's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Douglas Frenia accept my insurance?
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Can I make an appointment with Dr. Douglas Frenia online?
Yes, you can make an appointment online with Dr. Frenia using Zocdoc. It’s simple, secure, and free.
What practice does Dr. Douglas Frenia work with?
Where is Dr. Douglas Frenia's office located?
Dr. Douglas Frenia's office is located at 254 Easton Ave., New Brunswick, NJ 08901.
Which board certifications does Dr. Douglas Frenia have?
Dr. Douglas Frenia is certified by American Board of Internal Medicine.
What are common reasons for patients to see Dr. Douglas Frenia?
Dr. Douglas Frenia frequently sees patients for Cough, Obstructive Sleep Apnea (OSA), Pulmonology Consultation, Sinus Problems / Sinusitis, and Sleep Problems. You can see other visit reasons for Dr. Douglas Frenia on their profile.
What languages does Dr. Douglas Frenia speak?
Dr. Douglas Frenia speaks English.
How do patients rate Dr. Douglas Frenia in reviews?
40 patients have reviewed Dr. Douglas Frenia. The overall rating for this doctor is 5/5. They have a 4.97/5 rating for bedside manner and a 4.81/5 rating for wait time. You can read individual reviews and ratings on their profile.