Jill Olmstead, NPC
Fullerton, CA 92835
- Mission Heritage Medical Group and Affiliated Physicians
- St. Joseph Heritage Medical Group and Affiliated Physicians
- St. Jude Heritage Medical Group and Affiliated Physicians
St. Jude Heritage Fullerton - Gastroenterology
1837 Sunny Crest Drive, Fullerton, CA 92835
Insurances Accepted
This information provides an overview of accepted insurance plan types. Coverage may vary by specific plan. Please verify your with your insurance provider before visiting us for care.
- TriWest - Tricare
- United HealthCare PPO
- Providence Health Plan - Medicare Advantage
- Health Net - Medicare Advantage
- Blue Shield of CA HMO - Trio
- Blue Shield of CA Medicare Advantage
- HealthSmart (Interplan) PPO
- Health Net PPO
- Vivity by Anthem Blue Cross
- US Family Health Plan - TriCare
- Anthem Blue Cross HMO
- Blue Shield of CA HMO
- Anthem Blue Cross PPO
- SCAN Medicare Advantage
- Cigna HMO
- Anthem Blue Cross Medicare Advantage
- Cigna PPO
- Health Net HMO
- Blue Shield of CA PPO
- United Healthcare HMO
- Aetna PPO
- Anthem Blue Cross Medicare PPO
- Multiplan PPO
- Coventry/First Health PPO
- Aetna Medicare Advantage HMO
- Aetna HMO
- Aetna Medicare Advantage PPO
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About Jill Olmstead
As an experienced nurse practitioner in gastroenterology my practice philosophy is to ensure our patients feel comfortable and confident to share their health concerns and questions. It is important to listen to “our patients’ stories” because this is what makes us all unique and gives us the information to help make the diagnosis and develop a plan of care. By understanding our patients needs are the most important reason why we are here, which is the key factor I would like to convey. We often see urgent and complex problems but understanding we have an exceptional team of gastroenterologists to support our patient’s complex needs is key to our success.
My passion is providing gastrointestinal education to our patients so they are well informed and can share in the decision-making process. Once our patients understand the “why” behind the “what next” reduces anxiety and fear. I especially enjoy providing care and guidance for woman’s gastrointestinal disorders. I have found over the past 20 years of my experience in gastroenterology that I am the first clinician my patient has bravely shared a very embarrassing moment. It a very empowering moment for my patients once she realizes she is one of many who share the same GI concerns.
I am a frequent guest lecturer at University of California in Irvine for NP students. I have written and published in the Journal for Nurse Practitioners, Journal of Clinical Outcomes Management, Journal of the American Academy of Nurse Practitioners, Gastroenterology Nursing and The Nurse Practitioner Journal.
In my leisure time, I enjoy being active outside especially kayaking and hiking. I have a renewed passion for cooking and would one day love to write a cookbook to help others “simplify” their desire to eat nutritionally.
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-Red Rose Nursing Excellence Award, St. Joseph Health-2018
-California Nurse Practitioner Distinction of the Year Award, California Association of Nurse Practitioners- 2012
-President American College of Nurse Practitioners, 2012
-President California Association of Nurse Practitioners-2009
-Astra Zeneca Grant Recipient-Developing a NP Directed program Colon Cancer Screening in Underserved Population, American Academy for Nurse Practitioners (AANP) Foundation-2007
-Excellence in Values of Action- St. Joseph Heritage Health Foundation- 2004.
-AstraZeneca Grant Recipient-Gastroesophageal Community Education Grant from the American Academy of Nurse Practitioners Foundation (AANP)-2003
-Nurse’s Service Organization, Advisory Board Member: 2009-present
American Society for Gastrointestinal Endoscopy, American Association of Nurse Practitioners, California Association of Nurse Practitioners
- American Nurses Credentialing Center (ANCC), Adult Nurse Practitioner (ANP-BC)
Community Reviews
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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.
Jill Olmstead provided excellent care. Right away I felt comfortable talking with her. She Explained things clearly and patiently. She asked pertinent questions about my history, pain levels, and related circumstances. St Jude needs more medical professionals like Jill Olmstead.
Providence Patient
My experience was excellent, She was such good listener, explained and answered questions clearly. I wish all health care providers were like her.
Providence Patient
Prompt, interested in my health concerns/questions answered to my satisfaction!
Providence Patient
Jill was very caring and knowledgeable. She gets a A+ today she has a very welcoming way about her so you feel comfortable asking her questions about your health concerns
Providence Patient
The provider was very helpful and accommodating.
Providence Patient
My primary care providers have been very responsive in meeting all my health care needs.
Providence Patient
I received excellent service Jill was kind, helpful and made feel genuine care. She went above and beyond to put me at ease and answer all my questions.
Providence Patient
I wish there were more timethe appointment seems to always end unexpectedly. I felt this time that I was given different information than I received six months ago. I didnt have time to discuss further. However, I am pleased with the progress and my current GI health.
Providence Patient
Every provided I see are excellent
Providence Patient
Jill Olmstead, NP always provides excellent care! Very knowledgeable.
Providence Patient
Jill olmsted was great as usual. Her assistant was also great!
Providence Patient
Jill was very professional and friendly. Among the best i've had
Providence Patient
I have been with St Jude Heritage for 38 years. I trust them completely.
Providence Patient
Jill is the best very caring and knowledgeable
Providence Patient
Excellent communication skills. Jill undrestood my health issues and answered all of my questions.
Providence Patient
Jill O . Was wonderful
Providence Patient
She accommodated my inability to prepare for the sigma colonostopy and stayed later for me. She explained the procedure and answered my questions.
Providence Patient
Excellent provider!
Providence Patient
Very caring. Listened to what I asked. Answered questions the way I could understand.
Providence Patient
[Name(s)] /August [Date] 2025 To home it may concern: I am writing to express my sincere gratitude for the exceptional care I received from Jill Olmstead NP during my visit with her. The qualities, attentive listening, patient clear explanations, treatment plan, helpful beyond measure I couldn't ask for more professional Dr than the quality I observed in her. I'm satisfied with her and her approach with patients I would definitely recommend people to her. And I wish all your patients get to see what I see in her. I will forever be grateful. Thank youDear Dr. MARY (Last Name)I am writing to express my sincere gratitude for the exceptional care I received from Dr. Mary, during my visit with her. The qualities, attentive listening, patient clear explanations, treatment plan, helpful beyond measure I couldn't ask for more professional Dr than the quality I observed in her. I'm satisfied with her with and her approach with patients I would definitely recommend people to her. And I wish all your patients get to see what I see in her. I will forever be grateful.
Providence Patient
This was the best care provider I have ever had in my many experiences. Jill Olmstead listen to every concern I had and was very empathetic and helpful. She really made me feel seen and heard. Overall, the care I received was beyond my expectations. I would recommend to all.
Providence Patient
She was very nice and did not rush through the appointment, she recommended some options for me and got me in for an ultrasound very soon.
Providence Patient
Jill is amazing. She has been the only provider to take the time to understand my health issues and create a care plan to reach a resolution.
Providence Patient
Very professional and courteous
Providence Patient
Jill was very professional and put me at ease instantly. She knowledgeable and answered all my questions. She is a very friendly person. I enjoyed this visit
Providence Patient
Everything went very well found out that the issue where they were concerned about was not an issue
Providence Patient
The visit went well.
Providence Patient
I find Jill Olmstead to be very nowledgible , professional and thorough
Providence Patient
Very knowledgeable, caring, friendly, good listener and more
Providence Patient
I had to wait over a month to see this provider as she was on leave.
Providence Patient
Great listener and patient and well explain
Providence Patient
Good.
Providence Patient
She was amazing
Providence Patient
Was a great experience. The provider had reviewed all my records ahead of my appointment. Explained everything completely and listened carefully to my questions
Providence Patient
ALL GOOD
Providence Patient
Jill is very good and takes her time to understand what is going on and what needs to be explored.
Providence Patient
Excellent care and info
Providence Patient
Jill Olmstead is extreme is friendly, thorough, knowledgeable, compassionate & cares about her patients. She is an asset to the organization who is greatly appreciated & valued.
Providence Patient
Jill was a pleasure to interact with. She was extremely knowledgeable and explained everything for a layman as myself to understand completely. Thanks again to Jill.
Providence Patient
This was the first time I met with Jill Olmsted, and she was absolutely wonderful in every way! I found her to be very warm and engaging; very easy to talk to. She spent a lot of time with me, covering every possible part of my health issues and care, particularly from 2019 to the present. Upon addressing the main reason for this visit, she summarised my options with me and also provided notes to my physicians involved. Jill also told me that she wanted to follow up with me in 4 weeks, and I am thrilled to do so. Jill is totally tops in her profession and I was so happy to have met her!!
Providence Patient
Ms. Olmstead is professional, caring, focused and responsive. I HIGHLY respect her guidance and appreciate her professionalism.
Providence Patient
Very satisfied with Jill. She makes me feel like she really cares about my health. She's warm, caring and very knowledgeable.
Providence Patient
Jill is a wonderful np! It is so nice to have a female to talk to about such a sensitive subject! She always remembers me & has the empathy & dedication to me & my health! She listen intently & give articulate & thoughtful advice. I trust her implicitly!
Providence Patient
Only had one visit with Jill Olmstead so far. I am a new patient with her. So, some of these questions do not fit the situation. I did appreciate her listening to my concerns and I am hoping she can help me.
Providence Patient
Jill is a lovely person and totally listened to everything I had to say.
Providence Patient
JilllbOlmstead is one of the most attentive and caring providers I ever had. More providers should be like her. She truly cares about her patients. Please don't let her go.
Providence Patient
Thank You
Providence Patient
I am extremely happy with Dr Davenport's office. This is the first time meeting with this staff in this office. I was happy with my experience.
Providence Patient
The doctor was a good listener.
Providence Patient
She prompted me to talk about my condition in order to thoroughly assess every contributing factor.
Providence Patient
She really listened to my concerns and did not brush me off. She assured me we would figure it out and to contact her in a few days with how I m doing. Very much appreciated.
Providence Patient
Good experience over all
Providence Patient
Dr spent time answering all my concerns.. I felt well informed of my diagnosis. Very pleasant and kind
Providence Patient
She's the absolute best!
Providence Patient
Jill is amazing. Explained everything. Didn't order any unnecessary tests. Very kind and nice and knowledgeable
Providence Patient
I had a great experience with NP Olmstead. She listened to all of my concerns, answered all of my questions in an easy and respectful manner. She is a very knowledgeable professional who shows care and respect for her patients.
Providence Patient
I've seen Jill several times and she has been friendly and helpful with my situation. This last time, the visit was different...I don't know if she was rushed or was uninterested in the discussion. I brought a list of things to talk about and I didn't get through the list. I felt that then appointment was suddenly over. I'm troubled by the experience since I think highly of Jill.
Providence Patient
Did not like Jill's Attitude with me, I will not be seeing her again,Only saw her because Dr. Jamal was not available.
Providence Patient
I feel confident in my provider for my condition and the path she's given me.
Providence Patient
Jill was very attentive and respectful of my concerns. She listened to me and as a patient, I could sense that she genuinely cared about my needs and concerns. I wish other providers were more like her. She was great and I would gladly see her again.
Providence Patient
I felt Jill listened to me, read my health file, gave me good advice and spent a reasonable time with me.
Providence Patient
Very thourough and professional
Providence Patient
Jill is the best
Providence Patient
No complaints. I was very pleased with the people working at this clinic.
Providence Patient
Jill Is a wonderful!
Providence Patient
Although I initiated the appointment, I wasn't 100% sure I needed the procedure, Just spent time going over my medical history with me and discussed it And decided I didn't need it.I wish more visits were Like this
Providence Patient
Very knowledgeable about my situation. Friendly and courteous!
Providence Patient
Good
Providence Patient
Excellent
Providence Patient
Overall satisfied. Had to wait 30 minutes to be seen.
Providence Patient
Excellent service
Providence Patient
Jill is amazing, it's always a pleasure to see her. She is very knowledgeable and caring with a great bedside manner
Providence Patient
Felt like I got a rockstar treatment - a wonderful team of healthcare professionals!
Providence Patient
Jill provided a level of care I have never received regarding my GI issues. I left feeling optimistic and grateful for her time.
Providence Patient
Jill always listens to what I say.
Providence Patient
Provider was very attentive and caring to my needs and questions
Providence Patient
Very personable and professional
Providence Patient
First time visit.Wonderful staff and NP.Very respectful and provided information that I required.
Providence Patient
Keep Jill and her staff they're awesome I highly recommend them!
Providence Patient
Jill Olmstead is professional, excellent patient interaction, knowledgeable and emits caring. I appreciate her careful review and advice/guidance!
Providence Patient
Jill is awesome, She is always so friendly, shares about herself professionally, connects easily with me on a personal level, remembers me, listens, and takes immediate action to get me an appointment as soon as possible for a procedure. She orders the tests right away and, If need be, refills my prescription. She is a 10 plus.
Providence Patient
great
Providence Patient
Everyone at the office was nice. Jill listened intently to my comments and provided advice that was easy to understand.
Providence Patient
Jill, put me at ease. She explained what I should and should not do. I very happy with her.
Providence Patient
Excellent provider! Extremely compassionate and knowledgeable.
Providence Patient
My NP was very interested in the progress of my ailment. She's a very caring, empathetic professional with a good sense of humor.
Providence Patient
Conditions and Procedures
- Abdominal Pain
- Abnormal Bowel Movement
- Abnormal Liver Function Blood Test
- Abnormal Stool
- Achalasia
- Acute Pancreatitis
- Alcoholic Hepatitis
- Altered Bowel Habits
- Anemia
- Anorexia
- Autoimmune Enteropathy
- Autoimmune Hepatitis
- Barrett's Esophagus
- Benign Neoplasm Of Colon
- Biliary Tract Disease
- Blood In Stool
- Bravo Ph Test
- Breath Testing
- Bright Red Blood Per Rectum
- Burping
- Capsule Endoscopy
- Celiac Disease
- Cholangioscopy
- Cholangitis
- Cholecystitis
- Cholelithiasis
- Cholestasis
- Chronic Abdominal Pain
- Chronic Diarrhea
- Chronic Pancreatitis
- Cirrhosis
- Clostridium Difficile
- Clostridium Infections
- Cold Therapies
- Colitis
- Colon Polypectomy
- Colonic Inertia
- Colonic Polyps
- Colonoscopy
- Colorectal Screening
- Constipation
- Crigler Najjar Syndrome
- Cyclic Vomiting Syndrome
- Digestive Disorders
- Diverticular Disease
- Diverticulitis
- Diverticulosis
- Double Balloon Enteroscopy
- Duodenal Ulcer
- Duodenitis
- Dyspepsia
- Dysphagia
- End Stage Liver Disease
- Endoscopic Mucosal Resection
- Endoscopic Mucosal Resection Of Esophagus
- Endoscopic Mucosal Resection Of Large Colon Polyps
- Endoscopic Retrograde Cholangiopancreatography
- Endoscopic Ultrasound
- Endoscopy
- Eosinophilic Colitis
- Eosinophilic Enteritis
- Eosinophilic Esophagitis
- Eosinophilic Gastritis
- Epigastric Pain
- Eructation
- Esophageal Disease
- Esophageal Disorder
- Esophageal Diverticulum
- Esophageal Mass
- Esophageal Motility Disorders
- Esophageal Spasm
- Esophageal Stricture
- Esophageal Ulcer
- Esophageal Varices
- Esophagitis
- Fecal Impaction
- Fecal Incontinence
- Feeding Tube Management
- Flatulence
- Focal Nodular Hyperplasia
- Gallbladder Disease
- Gallbladder Polyp
- Gastric Anomaly
- Gastric Ulcer
- Gastritis
- Gastroenteritis
- Gastroesophageal Reflux Disease
- Gastroesophageal Reflux Surgery
- Gastrointestinal (Gi) Cancer Screening
- Gastrointestinal Amyloid
- Gastrointestinal Bleeding
- Gastroparesis
- Gastroscopy
- Gastrostomy Closure Surgery
- Giardiasis
- Gluten Sensitivity
- Helicobacter Pylori
- Hematemesis
- Hematochezia
- Hemochromatosis
- Hepatitis
- Hepatitis B
- Hepatitis C
- Hereditary Colon Cancer
- Hiatal Hernia
- High Resolution Manometry
- Ileitis
- Inflammatory Bowel Disease
- Intestinal Obstruction
- Intractable Vomiting
- Irritable Bowel Syndrome
- Jaundice
- Lactose Intolerance
- Liver Disease
- Liver Mass
- Lynch Syndrome
- Malabsorption
- Melena
- Metabolic Dysfunction Associated Steatotic Liver Disease
- Metabolic Dysfunction-Associated Steatohepatitis
- Motility Disorders
- Nausea
- Obstipation
- Odynophagia
- Ogilvie Syndrome
- Pancreas Divisum
- Pancreatic Cyst
- Pancreatic Fistula
- Pancreatic Insufficiency
- Pancreatic Pseudocyst
- Pancreatic Steatorrhoea
- Pancreaticobiliary Disease
- Pancreatitis
- Paralytic Ileus
- Partial Small Bowel Obstruction (Sbo)
- Peptic Ulcer
- Peritonitis
- Peutz Jeghers Syndrome
- Polyposis Syndrome
- Portal Hypertension
- Portal Hypertensive Gastropathy
- Postprandial Diarrhea
- Primary Encopresis
- Proctitis
- Proctosigmoidoscopy
- Radiofrequency Ablation For Barrett's Esophagus
- Rectal Bleeding
- Rectal Pain
- Regional Enteritis
- Secondary Encopresis
- Short Bowel Syndrome
- Sigmoidoscopy
- Small Bowel Disease
- Steatotic Liver Disease
- Stomach Cramps
- Stomach Disorders
- Swallowing Problem
- Ulcerative Colitis
- Virtual Care
- Vomiting
- Whipple's Disease
- Wilson's Disease
Very patient
Providence Patient