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Rebecca E. Mass-Krajewski, ARNP

Patient Ratings

4.9 / 5 (Based on 138 Ratings)


Primary Care and Family Medicine

Rebecca Mass-Krajewski provides care for all ages – even newborns.

Conditions Treated

gout, osteoarthritis, abdominal pain, allergies, anxiety, atherosclerosis, colds, conjunctivitis, constipation, cough, depression, diarrhea, ear infections, earaches, eczema, family planning, fatigue/malaise, fever, fibromyalgia, flu, GERD, hair loss, headaches, health maintenance, heart burn, high blood pressure, high cholesterol, hyperlipidemia, hypertension, incontinence, men's care, migraines, minor injury, myositis, nasal congestion, nausea, newborn care, pediatric care, pink eye, pneumonia, pre-diabetes, rashes, shingles, sinus infections, skin irritation, smoking cessation, sore throat, sprains, stomach aches, stomach flu, strains, tobacco use, tonsillitis, upper respiratory infection, vertigo, vomiting, women's care, wounds, yeast infection, urinary tract infection, attention deficit disorder (ADD), attention deficit hyperactivity disorder (ADHD), family medicine, and primary care

Procedures Performed

annual wellness visit, blood test, breast exam, camp physical, diabetes screening, flu shot, flu test, hearing test, high cholesterol screening, hypertension screening, mono test, pap smear, pregnancy test, school physical, sports physical, strep test, tuberculosis test, urine test, vaccinations, well baby exam, well child exam, x-rays, annual physical, annual gynecology exam, and adult preventive care

Contact Information

  • Office: 425-899-2273
  • Fax: 425-899-2272






English and Spanish

Interpretation Services Available

Board Certification

Board Certified in Family Medicine


Rebecca Mass-Krajewski has a wide range of experience from pediatric care to chronic disease, and from female care to work - life balance improvement for health. She is particularly interested in working with individuals and families to help prevent disease before it starts. Of particular interest to her are connective tissue disorders, thyroid problems, fatigue, and mood instability. She loves family practice because she can help care for multiple generations of the same family.

Clinical Expertise

Family medicine (including newborns and pediatric patients).

Philosophy of Care

I take the time to learn your outlook on life. My goal is to work with you to develop a plan that integrates your health needs with your readiness to make changes. From there it is about teamwork, celebrating success, and creating new plans that address setbacks.


Taking the First Step: A Discussion on Mental Health

Other Training

Indiana State University (advanced nurse practitioner) | Terre Haute, IN

Personal Information

I enjoy puddle stomping and "worm saving" with my three kids in the rainy Washington weather, enjoying the vast variety of food my husband the chef creates, traveling to see family in Honduras, and gardening or visiting the nearby forest. I speak Spanish and have worked and traveled extensively throughout Latin America.

Community Involvement

International volunteer work in Latin America with HIV+ orphans in Argentina and health outreach with indigenous Guatemalans. I have attended international health improvement conferences. I mentor and precept new Nurse Practitioners and Advanced Nurse Practitioner students because this improves the quantity and depth of the care my patients receive, and makes my days more fun.


May 17, 2022
I was very pleased with my appointment due to the thoroughness of the Dr in asking questions and covering all bases.
April 26, 2022
Rebecca is very communicative and thorough. I love having her as my PCP. I have recommended other patients to her in the past.
March 17, 2022
I just love Rebecca Mass-Krajewski! She's friendly, personable, and down-to-earth. She takes the time to listen to my concerns and suggests resources where I can get more information. I feel very at ease with her, and I can tell she cares about me and my health. I'm so glad I found her!
March 08, 2022
I really like Dr. Mass-Krajewski!! She has a friendly, genuine, conversational tone and a sense of humor. Presents straight forward info and discusses options. ALSO seems willing to spend sufficient time to cover all points of necessary discussion. Never seems rushed or in a hurry to leave, which makes me feel seen and heard.
March 04, 2022
It has been a blessing to find Rebecca because it took me multiple years to find a good doctor. All of the doctors I visited prior to Rebecca couldn't even pretend to care about me
March 01, 2022
February 25, 2022
This was my first appointment and I needed more time with her as my new PCP.
February 18, 2022
Rebecca is wonderful!
February 17, 2022
Dr. Mass-Krajewski is the best provider I've ever worked with, and I've referred multiple friends and family members to her. She is attentive, has a great memory, and personalizes my care to the highest degree possible. Her obvious empathy makes it easy to be candid with her, which improves my overall care.
February 17, 2022
She's amazing-
February 01, 2022
Rebecca is so helpful and has really good ideas/she always makes me laugh!
January 11, 2022
All well.
November 30, 2021
She is knowledgeable & meets all my needs. I highly recommend her.
November 19, 2021
Rebecca was AWESOME! Appreciated her friendly and open manner. She listened and I felt like she was really paying attention to me personally, not just going through the motions.
November 09, 2021
She is wonderful- this is an unusual experience with her with not being seen quickly and not feeling like I had time to really ask my questions