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About

Frederick Gastroenterology Associates is a Frederick, MD-based private practice of board-certified gastroenterologists and advanced practice providers focused on digestive health. Key points: - Services: Evaluation and treatment of stomach pain, intestinal problems, acid reflux, constipation, liver disease, and other gastrointestinal issues. - Locations: Three offices in the United States (including Frederick, MD and Rockville, MD). - Leadership: Dr. Gordon Liss among the gastroenterology providers. - Contact: Multiple local phone numbers; main address listed as 310 W 9th St, Frederick, MD 21701. - Structure: Small practice (3 employees) with private ownership; part of the Hospitals and Health Care sector. - Web presence: Website fgamd.com; modest web traffic (approx. 2,514 monthly visits) with a strong bounce rate indicating concise site engagement. - Notable context: LinkedIn profile exists; overall focus on digestive health and related specialties. If you’re seeking a local gastroenterology provider in Frederick for digestive health concerns or liver disease management, Frederick Gastroenterology Associates offers board-certified expertise and a multi-office footprint in Maryland.

Clinic Type

Gastroenterology

Address

109 Guilford Ave, Frederick, MD

Phone

(301) 695-6800

Email

Opening Hours

Update to Office Hours for Labor Day Weekend: Our office will be closed early this Friday 8/30 at 12:30pm. We will be observing Labor Day on Monday and offices will be reopen Tuesday.

Services Offered

Team

  • Meet our Physicians — Physicians

Insurance & Payment

Languages Spoken

FAQs

What are your office hours during Labor Day weekend?

Our office will be closed early this Friday 8/30 at 12:30pm and will reopen Tuesday after Labor Day.

Awards & Accreditations

  • Newsweek's best ambulatory surgery centers (ASC) – Frederick Endoscopy Center

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Birdeye (aggregated from Google): 4.7/5 stars (544 reviews)

Patients praise

  • Highly rated and recommended by many patients
  • Physicians are frequently described as knowledgeable, thorough, and caring with good bedside manner
  • Staff, nurses, and administrative personnel are often noted for being friendly, helpful, and welcoming
  • Efficient and clear communication regarding patient care and procedures

Common complaints

  • Some patients reported dissatisfaction with billing and scheduling processes
  • Isolated reports of unprofessional or rude nursing staff interactions
  • Occasional concerns regarding doctors not reviewing medical files thoroughly before appointments

"Wow, I have never had a better experience at a doctor's office in my life. From the moment I checked in to the moment I checked out, every single person at Frederick Gastroenterology was unbelievably kind, patient, and welcoming."

LocalityBiz review

"Nurses were rude and terse at best, very unprofessional and act like you are nothing but a bother to them, nothing positive to say about them, they made the entire process extremely stressful and tense!"

Unilocal review

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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Frederick, MD·Gastroenterology

Frederick | Gastro Health - Overview: Gastro Health is a private GI-focused healthcare group, one of the largest and fastest-growing in the U.S., with a broad network of gastroenterology clinics and specialists. It is backed by private equity (OMERS Private Equity) and operates under the Gastro Health umbrella. - What it offers: Board-certified gastroenterology clinicians treating digestive and liver disorders; services include advanced endoscopy, hepatology, colorectal surgery, and related GI care for adults and pediatrics. - Size & reach: Approximately 622 employees; 81 offices across the United States (with a notable presence in Florida, Ohio, Washington state, and other locations). Headquartered in Miami, FL. - Funding & ownership: Total funding around $100M; ownership includes private equity and OMERS Private Equity involvement. Private equity rounds include Penfund and Audax/private equity collaborators. - How this looks for Frederick: If you’re seeking GI care in Frederick, MD, or nearby, Gastro Health may provide access to a large network of gastroenterologists and potentially coordinated GI services; verify local office locations and whether there is a Gastro Health clinic serving Frederick or nearby communities. For precise location, hours, and providers near Frederick, check the Gastro Health website or contact their offices directly.

VerifiedOnline bookingSince 2006

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