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About

Summary: - The page profiles Union Anesthesia Associates and Raritan Anesthesia Associates Pain Management, a private medical practice focused on pain management and anesthesiology with 7 employees. - Based in Union, New Jersey, the practice emphasizes treating the pain source through non-invasive and minimally invasive surgical techniques, plus non-surgical methods to relieve or eliminate pain. - Services align with spine and neck/back pain, sciatica, and related pain conditions, incorporating minimally invasive/surgical and non-surgical approaches. - Locations include five NJ offices (HQ in Union) and nearby states; however, there is no specific listing for Woodbridge (07095) on this page. The nearest addresses are in Union, North Brunswick, Bayonne, Bloomfield, and Hamilton Township, NJ. If you need a closer match to Woodbridge, NJ 07095, I can search for pain management/anesthesiology providers in that exact area.

Clinic Type

Pain Management

Address

655 Amboy Avenue, Woodbridge, NJ 07095

Phone

908-851-7161

Email

Opening Hours

7:30 AM - 5:00 PM

Services Offered

  • Pain Management
  • Anesthesiology

Insurance & Payment

Languages Spoken

FAQs

What are the hours of operation?

7:30 AM - 5:00 PM (multiple entries show this same window)

Awards & Accreditations

  • Average Reviews: 4.84/5

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Union Anesthesia Associates website: 4.84/5 (Average across Union Anesthesia Associates) (N/A)
  • Healthgrades (Dr. David Adin): 4.4/5 (19 ratings)
  • Birdeye (New Jersey Orthopedic Rehab and Pain Management Group): 3.5/5 (41 reviews)
  • Birdeye (The Center for Joint & Spine Relief): 4.2/5 (39 reviews)

Patients praise

  • effective pain relief and improved mobility following procedures
  • professional, kind, and attentive bedside manner reported by many patients
  • thorough explanation of conditions and treatment options

Common complaints

  • concerns regarding maximum billing and reliance on physician assistants instead of lead doctors

"I have had multiple procedures with Dr. Fleischhacker. He has lessened my pain significantly. Every time i have had an office appointment or procedure he is efficient, kind, caring and respectful."

Vitals review for Dr. Wayne Fleischhacker

"Thank You Dr. Adin!! I fell off of my horse and for 6 months suffered with back pain... I scheduled me for a nerve block. NO MORE PAIN! I have recommended him to my friends and their results were terrific also."

Healthgrades review for Dr. David Adin

"They took (6) six appointments to get the real doctor out. Until then it's smokes and mirrors with lots of physicians' assistants... all of their business is to get maximum billing from the customer victims."

Birdeye review for The Center for Joint & Spine Relief

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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