Dr Martyak

Lenna Martyak, MD

Gastroenterology

Accepting New Patients

About Lenna Martyak, MD   

Lenna A. Martyak, MD, is certified by the American Board of Internal Medicine in Gastroenterology. She earned her medical education at the Georgetown University School of Medicine in Washington, D.C. It was here where her passion grew for community service. She has volunteered in various projects since early on, and she has been a part of several community organizations. For example, Dr. Martyak started a committee to encourage other medical students to participate in community activities. She helped to open a shelter for homeless women and children in Washington, DC, and she mentored teenage girls at the Boys and Girls Club.   

Dr. Martyak’s medical services include Luminal diseases of the GI tract, and she is known for her warm bedside manner and excellent listening skills. She is extremely excited to be a part of the Southern California Medical Gastroenterology Group and the practice of gastroenterology in Santa Monica. When she is not working in her office, you can often find her providing services to patients at the Venice Family Clinic free of charge.   

Dr. Martyak is a dedicated educator, and she spends a substantial amount of her spare time training medical students and residents at various hospitals throughout the Los Angeles area. Through these and other projects, Dr. Martyak exemplifies our philosophy of giving back to the community.  

For fun, Dr. Martyak enjoys getting outdoors. She enjoys hiking, bodyboarding, snowboarding, and spending time with her husband and family.  

My physician is always on top regarding my health concerns. An excellent physician.

Real Patient
Lenna Martyak, M.D

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Lenna Martyak, MD 
Digestive Health

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Digestive Health
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Medical Service

Digestive Health

Locations

1301 20th St., Suite 280,
Santa Monica, CA 90404
(310) 829-6789

12555 West Jefferson Blvd., Suite 303,
Los Angeles, CA 90066
(424) 443-5530

Education

Medical School
Georgetown University School of Medicine, Washington, D.C.

Languages

English

Reviews

At Providence, we’re dedicated to providing you quality, personalized health care. We are constantly striving to optimize your experience.

As part of ensuring you have a positive experience with Providence, our online provider directory includes ratings and patient comments for select providers. More about our survey.

  • 4.9
  • 181 Reviews
  • 347 Comments
  • 5
02/06/2026

Dr Martyak has been my GI specialist for at about 20 years. She is always expert, clear and direct in consultation. She is also the most caring doctor I have seen, in any specialty. For my care, she is an excellent specialist, but her approach might be described as "wholistic" - she is always concerned with my overall medical well-being, and my emotional health as well. Her practice is on the opposite side of Los Angeles from where I live, but I happily make the trip. I have seen her for my periodic colonoscopy/upper endoscopy exams every 5 years for 4 times now. Each time consisting of a consult, the procedure, and follow-ups as needed. After my initial visit, her memory of me and my medical issues were as clear as if I'd seen here in the last year, not 5 years previously. Sure, she's got notes, but she studies them before you walk in, and she remembers you as a person not just as a medical case. I have had other medical conditions not directly part of my GI health and Dr Martyak has always taken care to ask thoroughly about all aspects of my physical and emotional health. She is a profoundly good doctor and an extraordinary person.

Providence Patient
  • 5
02/03/2026

Dr. Martyak seems excellent in every way.

Providence Patient
  • 5
01/30/2026

Excellent doctor. Listens carefully and sympathetically.

Providence Patient
  • 4.94
01/26/2026

I was very pleased with the care received from the provider in this survey. It was my first visit and I look forward to an excellent relationship.

Providence Patient
  • 5
01/22/2026

I love Dr. Martyak. She is an amazing doctor. Getting an appointment with her is extremely difficult so I can't recommend her to people who need to be seen quickly. I am able to get appointments with her if I book a follow up at the time of my current appointment.

Providence Patient
  • 5
01/16/2026

Dr. Lena Martyak is a wonderful knowledgeable physician

Providence Patient
  • 5
01/09/2026

Excellent care

Providence Patient
  • 5
01/04/2026

She is a new caregiver for me who comes highly recommended. I am looking forward to being under her care over the coming years.

Providence Patient
  • 5
12/21/2025

It was all good!

Providence Patient
  • 5
12/18/2025

I felt that Dr Martyak totally understood what my issues are and helps me try everything to get better

Providence Patient