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About

UnionDerm is a NYC-based cosmetic dermatology group offering advanced skin rejuvenation across multiple locations, including the Union Square and Central Park centers. Key points: - Services: More than 30 lasers and energy devices with proprietary treatment protocols for cosmetic dermatology and skin rejuvenation. - Expertise: Board-Certified dermatologists who are active in clinical research, teaching, and international conferences; partners with biotech/device companies to trial new treatments. - Locations: Five offices in New York City (including Union Square West and nearby Midtown addresses). - Size & scope: 21 employees; annual revenue around $3.7M; established 2011; private practice. - Experience: High-volume web presence with strong patient traffic and favorable engagement metrics. - Targeted relevance: Focused on cosmetic skin treatments, not a general salon; clinicians with top-tier reputations and published work. Note: The provided page does not mention Water Mill, NY or The Hamptons/Southampton. If you’re specifically seeking UnionDerm services in The Hamptons or Water Mill, NY, I can check for any satellite locations or affiliates and summarize those results.

Clinic Type

Dermatology (Aesthetic/Med Spa)

Address

Water Mill, NY (Hamptons)

Phone

212.366.5400

Email

fellowship@unionderm.com

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • Cosmetic dermatology
  • Medical dermatology
  • Surgical dermatology
  • Mohs surgery
  • Laser treatments
  • Microneedling with PRP
  • Injectables
  • Skin cancer screening
  • Skin cancer treatment

Technology & Equipment

  • Mohs micrographic surgery
  • Laser technologies
  • Microneedling with PRP
  • SkinVive
  • Other cosmetic dermatology technologies

Team

  • Board-certified dermatologists, Board-certified — Medical team

Insurance & Payment

Online appointments, In-person appointments

Languages Spoken

  • English

Current Offers

New patient offers — null

FAQs

What services are offered at the Hamptons location?

Medical, surgical, and cosmetic dermatology services including Mohs surgery, laser treatments, microneedling, PRP, and more.

Where are you located?

We are located at 728 Montauk Hwy, Water Mill, NY 11976.

What services do you offer?

Medical, surgical, and cosmetic dermatology services for the face, neck, and body at the Hamptons location.

Do you offer a fellowship program?

Yes, a fellowship program accredited by the American Society of Dermatologic Surgery for post-residency dermatologists in cosmetic dermatology and dermatologic cosmetic surgery.

Do you have multiple locations?

Yes, two locations in Manhattan (Union Square and Central Park) and locations in the Hamptons (Water Mill) and other offices.

How can I learn about insurance information by physician?

Insurance information by physician can be found at https://www.unionderm.com/about/insurance-information/.

Social Media

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • BestProsInTown: Not explicitly stated, but practice holds strong reputational feedback (39 reviews (specifically for Hamptons location))

Patients praise

  • Excellent medical care and expertise
  • Professional and friendly staff
  • Clean and comfortable facility environment
  • Natural-looking aesthetic results
  • Informative and deliberate patient care

Common complaints

  • Higher pricing for services

"Many patients feel at ease immediately upon meeting the team, with some stating that Dr. Petukhova is the only dermatologist they trust for laser removal or facial injections."

BestProsInTown

"Patients also appreciate the smooth and hassle-free experience from check-in to appointment, highlighting the warm, professional front office staff and the deliberate, informative care provided by the clinical team."

BestProsInTown

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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