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About

Northeast Medical Group (NEMG) is a Yale New Haven Health System-affiliated nonprofit medical group based in Bridgeport, CT, with 266 staff and about $42.1M annual revenue. It offers comprehensive family medicine and internal medicine, plus pediatrics and other specialties, across more than 130 community practices in Connecticut, Rhode Island, and Westchester County, NY. NEMG is connected to Yale New Haven Hospital and its network, including Bridgeport Hospital, Greenwich Hospital, Lawrence + Memorial, and Westerly Hospital, providing access to wide resources and ambulatory expansion. Local offices listed include Bridgeport HQ (226 Mill Hill Ave), Trumbull (112 Quarry Rd Ste 420), and Stamford, CT. For details on physicians, services, and locations, visit northeastmedicalgroup.org. If you’re specifically seeking a Family Medicine provider near Mystic, CT, please note NEMG’s primary CT footprint is in Bridgeport, Trumbull, and Stamford; you may want to check northeastmedicalgroup.org for any Mystic-area physicians or affiliates.

Clinic Type

Primary Care

Address

23 Clara Drive, Mystic, CT 06355

Phone

860-572-5782

Email

Opening Hours

Mon-Fri 8 am–5 pm; Sat/Sun closed

Telehealth

Offers Telehealth

Services Offered

  • Family Medicine
  • Psychiatry and Behavioral Health
  • Family Medicine (repeated)

Team

  • Sungsil Cho, MD — MD
  • Gina L. Williams, MD — MD
  • Brian L. Williams, MD — MD
  • Sandy Zhang, APRN, FNP — APRN, FNP

Insurance & Payment

Languages Spoken

  • English
  • Spanish
  • Other language services (via YNHHS language services)

FAQs

What are the clinic's hours?

Mon–Fri 8 am–5 pm; closed on weekends.

Is telehealth available?

Yes, Telehealth is offered.

What is the address for Northeast Medical Group Family Medicine – Mystic?

23 Clara Drive, Mystic, CT 06355.

What is the contact phone number?

860-572-5782.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • WebMD: 1 rating with 1 review (practice listing) (1 review)
  • WebMD (Dr. Brian Williams): 5.0 (14 ratings)
  • Vitals (Dr. Brian Williams): 4.6 stars (average for compassionate/thorough care) (11 ratings with 5 written reviews)
  • Vitals (Dr. Gina Williams): 4.4 out of 5 stars (7 ratings)

Patients praise

  • Doctors and care described as listening, thorough, compassionate, and friendly
  • Staff and office atmosphere described as friendly and pleasant
  • Clear exam and instructions noted in patient perspective on WebMD

Common complaints

  • Limited/very small volume of reviews on some platforms (e.g., only 1 review on WebMD practice listing), making overall complaints/experiences hard to assess
  • One WebMD practice listing indicates 'front desk will cancel less than 4 hours before appointment' (suggesting scheduling/office policy issues rather than clinical complaints)

"“He takes his time, he LISTENS, he's genuine, gentle and understanding…”"

Vitals review excerpt (Dr. Brian L. Williams, Mystic)

"“The entire atmosphere at Dr. Williams office is friendly and pleasant.”"

Vitals review excerpt (Dr. Brian L. Williams, Mystic)

"“Patients gave Dr. Brian Williams an average rating of 5 out of 5… 14 ratings.”"

WebMD (Dr. Brian Williams overview)

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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