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Imagine a Life Without Pain
More than just pain management, we provide relief.
active senior couple
Imagine a Life Without Pain
More than just pain management, we provide relief.
active senior couple
Imagine a Life Without Pain
More than just pain management, we provide relief.
active senior couple
Imagine a Life Without Pain
More than just pain management, we provide relief.
active diverse group of people
Imagine a Life Without Pain
More than just pain management, we provide relief.
active senior couple
Imagine a Life Without Pain
More than just pain management, we provide relief.
active senior couple
Imagine a Life Without Pain
More than just pain management, we provide relief.
exterior office building

Union Anesthesia Associates

Pain Management & Anesthesiology in Union, Scotch Plains, Bloomfield, South Bound Brook, New Brunswick, Old Bridge and Woodbridge, NJ

Union Anesthesia Associates provides high-quality pain management to people with acute, chronic, and severe pain. At their offices in Union, Scotch Plains, Bloomfield, South Bound Brook, New Brunswick, Old Bridge, and Woodbridge, New Jersey, the board-certified anesthesiologists and pain management specialists work closely with each person to find and treat the pain’s source rather than just masking symptoms.

At each office, you will receive a thorough evaluation, clinical exam, and review of diagnostic tests including MRIs to diagnose the root cause of your neck, spine, back pain, and any other ailments including headaches, nerve pain, and joint pain.  The providers also offer comprehensive evaluations and treatments for all headaches, including cluster headaches and chronic migraines.

The Union Anesthesia Associates team has extensive experience managing acute and chronic pain conditions such as neck and back pain, herniated discs, sciatica, radiculopathy, neuropathy, spinal stenosis, arthritis, complex regional pain syndrome, joint pain, and nerve pain. They use medication management, anti-inflammatories, muscle relaxants, injectable anesthetics, and interventional pain management including epidural steroid injections, facet joint injections, radiofrequency ablation, nerve blocks, spinal cord stimulation, and minimally invasive surgery. 

The highly skilled pain management specialists treat pain conditions caused by workplace injuries, motor vehicle accidents, and slip-and-fall events. They also provide personalized care for pain after surgery and complications such as failed back syndrome, postlaminectomy syndrome, adhesions, and phantom limb syndrome.

Minimally invasive spine surgery is available for chronic back and neck pain. Union Anesthesia Associates offers specialized procedures such as endoscopic surgery, and rhizotomy to ease the chronic pain or injuries associated with trauma and degenerative spine disorders. Spinal cord stimulation trials and permanent implantations are also available.

The Union Anesthesia Associates staff maintains a friendly, welcoming environment and offers flexible appointment times. The experienced physicians collaborate on all aspects of patient care to ensure a high level of pain management and the best treatment outcomes.

Call the Union Aesthetics Associates office near you today to schedule a consultation or book an appointment online.

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We accept most insurance providers. If you have specific questions regarding your coverage, please contact us for additional information.
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Patient Reviews

Dr. Wilcenski is the best! He's the only out of network doctor that I will visit. He's that great!
(...)
Cheryl H. | Nov 20, 2024
The doctor was very professional and concerned and asked the right questions and showed me the pictures of my neck describing in a manner that I understood something very hard to get from a doctor
(...)
Dean C. | Nov 15, 2024
DR. FLEISCHACKER IS A WONDERFUL DOCTOR, AND SO IS HIS STAFF
(...)
John V. | Nov 06, 2024
Everyone was friendly, Dr Wilcenski was "right on the spot ". Feeling much better!
(...)
Kathryn M. | Nov 03, 2024
I really appreciate how thorough Dr Novik is. He answered Al of my questions as well as thoroughly explained why I was experiencing my symptoms.
(...)
Lisa S. | Nov 01, 2024
The appointment went smoothly and on time . Felt very confident with the doctor . Very happy we went to see an expert for what I need .
(...)
Catarina M. | Oct 12, 2024
He's a good doctor I never changed
(...)
Arlete M. | Oct 03, 2024
Dr Novik explained my options and answered all my questions. I was very comfortable with him. He also asked me if I had any questions for him
(...)
Diane E. | Sep 27, 2024
On time scheduling I was seen by PA but she did a good job of listening to my complaints and gave me a treatment
(...)
Carmela M. | Sep 27, 2024
My third back injection with Dr Wilcenski the facility where he does the injection is great clean and the staff is very good, as are the staff in Dr Wilcenski's office always very helpful
(...)
Joyce M. | Sep 25, 2024
The best !!!!
(...)
Anica P. | Sep 25, 2024
Fast quality service
(...)
Jaime A. | Sep 21, 2024
Everyone is pleasant and warming. The doctor is great
(...)
Carlos C. | Sep 05, 2024
Excellent service and excellent team Godbless
(...)
Nelly T. | Sep 05, 2024
Very Professional.
(...)
Sherry J. | Sep 04, 2024
Doctor Fleischhacker is an excellent doctor I went to him and he took care of me I would give him 10 Starts I’f I could !!!
(...)
Donna M. | Jun 03, 2024
Dr. Fleischhacker is the most caring doctor and actually takes the time to listen unlike most doctors. I truly believe he does this work to help people in pain and help them recover whereas other doctors it’s all about the money. And his staff is also so very kind and helpful. Brilliant and caring doctor in my opinion
(...)
Andrea D. | Mar 29, 2024
I have been seeing Dr Fleishhacker for a long time now. He is patience and always concerned to find the root of my pain and his office staff and surgery staff are ALL AWESOME !! I always feel in the best hands there.
(...)
Diane K. | Feb 29, 2024
Good
(...)
Niliptha B. | Feb 27, 2024
Great
(...)
Rahim W. | Feb 26, 2024
I have been a patient of Dr. Fleischhacker’s for over 10 years. Would recommend him!
(...)
Tina P. | Feb 21, 2024
The doctor and the staff are great. They treat me with kindness, professionalism and the are very knowledgeable of the practice.
(...)
Penny S. | Feb 16, 2024
Dr. Fleischhacker listened, took his time explaining options. Very professional and helpful.
(...)
Carolyn V. | Feb 08, 2024
EXCELLENT DOCTOR
(...)
Sheila H. | Feb 06, 2024
I had a very positive experience and would recommend the Doc.
(...)
Robert B. | Jan 26, 2024
There great
(...)
James B. | Jan 23, 2024
Very Profesional
(...)
Felix V. | Jan 19, 2024
Like always union spine and pain is always there for me. I really recommend them.
(...)
Frank O. | Jan 17, 2024
The Doctor was very friendly. The staff was also very kind. I may revisit for the shot the Doctor offered to have me take
(...)
Darryl F. | Jan 17, 2024
Very good with the patients
(...)
Ricardo S. | Jan 17, 2024
Excellent service, knowledgeable staff It's because of Dr Fleishhacker that I can still walk and function normally!!!! I'm grateful for Dr Flieshhacker and his staff!!!!
(...)
Robert M. | Jan 09, 2024
OUTSTANDING!!!
(...)
John M. | Jan 03, 2024
Nice personnel in all places there. The doctor could not be nicer. He helped me a lot with my problem. To bad I am leaving the state but whoever needs pain management can count on this clinic, its personnel and specially Dr. Fleischhacker
(...)
Alejandro L. | Dec 23, 2023
Attentive and professional
(...)
Lisa A. | Dec 21, 2023
Always professional and courteous.
(...)
Pamela J. | Dec 20, 2023
Excellent
(...)
Eric H. | Dec 20, 2023
He is the best!
(...)
Nino M. | Dec 20, 2023
(...)
Eugenia H. | Dec 14, 2023
Nice
(...)
Roberto A. | Dec 12, 2023
The doctor is very kind and very professional. Always tries to find the best treatment for his patient
(...)
Luisa G. | Dec 07, 2023
I met with nurse practitioner. She was professional and warm.
(...)
Allison C. | Dec 06, 2023
Dr. Fleischhacker and his Staff are personable as well as professional and have always made me feel like family. From the office as well as the surgical center. I couldn’t ask for better treatment.
(...)
John D. | Nov 29, 2023
Great experience very professional and had great empathy for my pain
(...)
Alexzandr B. | Nov 22, 2023
The best experience ever
(...)
Edward H. | Nov 21, 2023
I always have a pleasant experience. Physicians and staff are always professional, attentive, caring and follows through.
(...)
Denise J. | Nov 20, 2023
Great
(...)
Dyolinda D. | Nov 18, 2023
Outstanding service. 5 stars is not enough
(...)
Pedro H. | Nov 08, 2023
I have worked with the physicians from this group and I trust their opinions and practice.
(...)
Mary R. | Nov 02, 2023
Atento y amables con los pacientes y orientan y auudan a las personas que no comprendemos el idioma
(...)
Iraidy M. | Oct 31, 2023
The whole Staff is very nice appointments are on time. And, Staff is very nice.
(...)
Halimah M. | Oct 25, 2023
Very professional and courteous..
(...)
Salvatore T. | Oct 18, 2023
I've been seeing Dr. Fleischhacker for almost 10 years and he is always caring and understanding of any and all situations, always going the extra mile to get to the root cause of my discomfort and always listens to me.
(...)
Michaela H. | Oct 17, 2023
Best doctor ever. Treating my lower back and neck very well. Thank you Dr macklin
(...)
Tinaud G. | Oct 17, 2023
Dr. Wilcenski is a phenomenal pain management doctor. He is precise and explanatory.
(...)
Jessica M. | Oct 17, 2023
The attention is very good.
(...)
Marta V. | Oct 16, 2023
Great everyone was nice
(...)
Lori M. | Oct 14, 2023
Everyone was very nice knew what they were doing
(...)
Daniel S. | Oct 14, 2023
Good follow up, discussed possible treatment to help with pain. Gave me additional perspective and information.
(...)
Janelle C. | Oct 13, 2023
Dr fleshacker is great
(...)
Wendy E. | Oct 11, 2023
Dr. Fleischhacker, a genuinely pleasant Doctor. He displayed real concern and care. He shows regard for my pain and discomfort. He is thorough in his quest to find the proper relief for my pain and suffering. His mission is helping me get my life back on track. It is clear he has listened as well as explained. He looks at you when he speaks to you, he is a Physician who is down to earth in that way. I always leave the office knowing and feeling I have a doctor who as my best interest at heart. AND THAT IS REFRESHING!
(...)
Branca M. | Oct 11, 2023
Would like morning appointments for procedures at Middlesex surgery centet
(...)
Jacqueline H. | Oct 10, 2023
The staff and Dr. Are very understanding and compassionate. They try to help you fix the problem that you have and are willing to help you in every way possible.
(...)
Rebecca G. | Oct 05, 2023
He is very polite and knowledgeable.
(...)
Lilian C. | Oct 05, 2023
Very good doctor help me with my problems
(...)
Tadeusz H. | Oct 05, 2023
Great experience
(...)
JoAnn P. | Oct 04, 2023
He’s a very good doctor
(...)
Flavio Q. | Oct 03, 2023
Super service and everyone is very friendly there. I speak English but they have a number of people who are bilingual which is a great asset in a company.
(...)
Deborah B. | Sep 29, 2023
My visits with Dr. Fleischhacker are always pleasant and informative. His office facility is always clean and his staff are always pleasant.
(...)
Michelle F. | Sep 28, 2023
Very efficient and pleasant staff! Dr Macklin is very patient and explains everything
(...)
Lisa B. | Sep 27, 2023
Good
(...)
Calvin P. | Sep 27, 2023
Thank you guys
(...)
Erifredo M. | Sep 27, 2023
Very good
(...)
George P. | Sep 26, 2023
He’s really awesome great guy really good good doctor
(...)
Geniene H. | Sep 26, 2023
Dr. Wilcenski is an excellent professional
(...)
Luisa G. | Sep 26, 2023
Caring, compassionate and very knowledgeable.
(...)
Adrienne F. | Sep 25, 2023
Well done job.
(...)
Chrisnadi F. | Sep 22, 2023
I received caring and compassionate care from friendly, professional staff. I've always gotten appointments scheduled without a long wait. There is plenty of parking which is a big plus for me (I refuse to parallel park...lol)!
(...)
Linda E. | Sep 22, 2023
Very, good attention
(...)
Cynthia G. | Sep 21, 2023
Doctor Macklin does excellent work. I recommend him to anyone that has been in the car accident. He does work with you before he releases you I give him a five star
(...)
Debra W. | Sep 21, 2023
As patient here they really know what they are doing professionally . Their goal is to get you back to up and about . Highly recommend.
(...)
Carl S. | Sep 21, 2023
Ok.
(...)
Pius I. | Sep 20, 2023
accommodating easily understandable explanations of diagnosis provided needed pain relief after seeing 3 or 4 other doctors.
(...)
Gerard C. | Sep 20, 2023
Hope to be able to continue a combination of diverse treatment and remain with Dr fleischhacker!
(...)
Louis T. | Sep 20, 2023
Good atencion
(...)
Susana Z. | Sep 20, 2023
Very good No complaints.
(...)
Stephen M. | Sep 19, 2023
He is a very kind and listens to what you have to say about your pain. Also he tries every option to help you get better
(...)
Doreen O. | Sep 19, 2023
My visit so far has gone well . I will be having an MRI on Saturday of this week and then we will go from there.
(...)
Aflonse C. | Sep 18, 2023
Fantastic
(...)
Maria C. | Sep 18, 2023
excellent
(...)
Lisette T. | Sep 16, 2023
Dr. Macklon and his PA’s all have the same patient care professionalism that is expected of them. They are warm and caring, they listen to you and understand what you’re saying and at times trying to say, They comfort you in a way that no other Medical Professional has ever done before. They say what they mean and what they say, there were never any beating around the bush. The Management of my pain was understood by them and handled. Thank You so much for taking care of me.
(...)
Felicia M. | Sep 15, 2023
Nice
(...)
Eugenia H. | Sep 15, 2023
Friendly staff. Knowledgeable doctors.
(...)
Davetta L. | Sep 14, 2023
everyone was so patient, kind, and caring. you could tell everyone was knowledgeable and wanted you to feel better. i couldn’t have asked for a better experience
(...)
Catherine M. | Sep 14, 2023
Dr. Macklin was very thorough and explained everything in simple terms
(...)
Robert M. | Sep 14, 2023
The dr Wilcenski is the best dr and intelligent and listen to patient very carefully he is the best
(...)
Kamaljit A. | Sep 14, 2023
Mi espalda esta mejorando y me siento mucho mejor
(...)
Roque M. | Sep 14, 2023
Very comfortable place, employees are friendly.
(...)
Angel A. | Sep 13, 2023
Very pleasant
(...)
Miguel R. | Sep 13, 2023
Great
(...)
Khaliff A. | Sep 13, 2023
Overall service was very good
(...)
Adolph W. | Sep 13, 2023
Dr. Fleischhaker has been my doctor for almost 15 years. Would highly recommend.
(...)
Tina P. | Sep 13, 2023
Thank you.
(...)
Alfonso G. | Sep 13, 2023
Dr es muy buen médico ase dies años el me inyectó y dos de esas inyecciones me ayudaron y ahora estoy en tratamiento con el espero que Dios lede sabiduría para darme el tratamiento mejor
(...)
Maria P. | Sep 13, 2023
Great!
(...)
Mark T. | Sep 13, 2023
Dr.Joshua Macklin is a very good doctor take care me with dedication,always recommend a treatment that you are best for me,my pain go away fell so happy
(...)
Janet I. | Sep 13, 2023
Great practice. Caring physician, professional staff, extremely good treatments. Will definitely use this practice again if needed.
(...)
Joan H. | Sep 12, 2023
Very friendly and professional
(...)
Dorothy M. | Sep 12, 2023
Always a pleasant and professional experience
(...)
Gizele V. | Sep 12, 2023
I would recommend Union Anesthesia Associates. Dr. Wilcenski was very detail and he answered all my questions.
(...)
Lidia S. | Sep 11, 2023
The staff were very professional
(...)
Chinelo O. | Sep 08, 2023
the best
(...)
Raquel B. | Sep 07, 2023
Always a great experience
(...)
Eric N. | Sep 07, 2023
Thank you for patience and time!
(...)
Maryeline C. | Sep 07, 2023
Check in process is smooth. APN explained treatment course and listened.
(...)
Teneshia B. | Sep 07, 2023
Fine my 1st visit
(...)
Robert R. | Sep 07, 2023
Dr. Macklin is very professional, thorough & listens to his patients. He has relieved one of my pain areas & is working on the other one. His explanations of treatments & procedures is geared to the patients understanding & puts one at ease before, during & after them I would highly recommend Dr. Macklin to anyone in pain.
(...)
Mary Z. | Sep 07, 2023
Always on time Professional staff Great doctors
(...)
Theodore M. | Sep 07, 2023
The whole staff is knowledgeable and caring. Accommodating to everyone one's individual needs. I would highly recommend Dr. Fleischhecker to anyone who has back or neck issues.
(...)
Dory L. | Sep 07, 2023
The doctor understands what pain I'm, also understanding as well
(...)
Edward M. | Sep 06, 2023
Very professional, helpful, interested in assisting you.
(...)
Earleen B. | Sep 06, 2023
Dr Fleshheaker keeping me moving
(...)
Michael R. | Sep 06, 2023
Thank you for help
(...)
Farouma A. | Sep 05, 2023
Experience
(...)
Mildred G. | Sep 05, 2023
Both the medical tech and provider were awesome. The provider took time and was patient answering all our questions. I will definitely recommend them to others.
(...)
Ebegue O. | Sep 05, 2023
Phenomenal!!
(...)
Julia T. | Sep 05, 2023
Very good! They explained it to me very well and I understood it, this helps me with my duties!
(...)
Eleazar A. | Sep 02, 2023
Union
695 Chestnut St, , Union, NJ 07083
908-851-7161
Scotch Plains
1818 E Second St, , Scotch Plains, NJ 07076
908-851-7161
Bloomfield
135 Bloomfield Ave, Suite B, Bloomfield, NJ 07003
908-851-7161
South Bound Brook
141 Main Street, , South Bound Brook, NJ 08880
908-851-7161
New Brunswick
153 Livingston Ave, , New Brunswick, NJ 08901
908-851-7161
Old Bridge
40 Route 34 South, , Old Bridge, NJ 08857
908-851-7161
Woodbridge
655 Amboy Avenue, , Woodbridge, NJ 07095
908-851-7161
Union Anesthesia Associates
✆ Phone (appointments): 908-851-7161
Average Reviews: 4.86/5