Dr. Frederick Klein, MD is accepting new patients on Healthline FindCare. You can check to see if Dr. Klein is offering online scheduling or call the provider’s office for more information.
- FindCare
- Gastroenterologists
- AZ
- Tucson
- Dr. Frederick Klein, MD
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Dr. Frederick Klein, MD
Overview of Dr. Frederick Klein, MD
Dr. Frederick Klein, MD is a Gastroenterology Specialist in Tucson, AZ. They specialize in Gastroenterology, has 44 years of experience, and is board certified in Gastroenterology. They graduated from Northwestern University Feinberg School of Medicine and is affiliated with Oro Valley Hospital and Northwest Medical Center. Patients rated Dr. Klein an average 3.8 star rating.
Dr. Klein works at
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Dr. Klein's Office Locations
-
1
Arizona Gastroenterology Ltd.7566 N La Cholla Blvd Ste A, Tucson, AZ 85741 Directions (520) 742-4139
-
2
Office560 E Continental Rd Unit 107, Green Valley, AZ 85614 Directions (520) 742-4139
Hospital Affiliations
Admitting Hospitals
Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.
Admitting Hospitals
Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.
Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.
- Oro Valley Hospital
- Northwest Medical Center
Experience & Treatment Frequency
NEW FEATURE
What is treatment frequency?
Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:
Very HighFrequency HighFrequency NormalFrequency May Perform Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.
NEW FEATURE
What is treatment frequency?
Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:
Very HighFrequency
HighFrequency
NormalFrequency
May Perform
Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.
Search for conditions or procedures.
Condition or procedure
Treatment Frequency
Diaphragmatic and Hiatal Hernia
Constipation
Gastroesophageal Reflux Disease (GERD)
Abdominal Pain
Acute Gastritis
Anal or Rectal Pain
Anemia
Barrett's Esophagus
Benign Neoplasm of the Digestive System
Celiac Disease
Cirrhosis
Colorectal Polyp
Congenital Anomaly Esophagus
Crohn's Disease
Diarrhea
Diffuse Esophageal Spasm
Duodenal Ulcer
Duodenitis
Dysphagia
Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
Esophageal Diverticulum
Esophageal Motility Disorders
Esophageal Ulcer
Esophageal Varices
Esophagitis
Familial Adenomatous Polyposis
Gallstones
Gas-Bloat Syndrome
Gastric Ulcer
Gastritis
Gastrointestinal Bleeding
Gastrointestinal Malabsorption
Gastroparesis
Gastroptosis
Heartburn
Hemorrhoids
Hepatitis B
Hepatitis B - Immune Response
Hepatitis C
Hernia
Hiatal Hernia
Indigestion
Inflammatory Bowel Disease
Intestinal Diverticulitis
Intestinal Diverticulosis
Intestinal Obstruction
Intestinal Ulcer
Irritable Bowel Syndrome
Lactose Intolerance
Liver Damage from Alcohol
Nausea
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Pancreatitis
Peptic Ulcer
Pernicious Anemia
Primary Sclerosing Cholangitis
Pyloric Stenosis
Reflux Esophagitis
Retroperitoneum Cancer
Ulcerative Colitis
Unexplained Weight Loss
Viral Hepatitis
Vitamin B12 Anemia
Vomiting Disorders
Colon Cancer Screening
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Colorectal Cancer Screening
Duodenal Polypectomy
Endoscopy (Esophagus, Stomach, Small Intestine)
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Flexible Sigmoidoscopy
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Function Test
Manometry
pH Probe
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Rigid Proctosigmoidoscopy
Screening Colonoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing
Diaphragmatic and Hiatal Hernia
Constipation
Gastroesophageal Reflux Disease (GERD)
Diaphragmatic and Hiatal Hernia
Constipation
Gastroesophageal Reflux Disease (GERD)
Treatment frequency
Many providers have expertise treating multiple conditions or procedures. FindCare uses a variety of data sources to determine which conditions or procedures a provider treats and their level of experience.
Diaphragmatic and Hiatal Hernia
- View other providers who treat Diaphragmatic and Hiatal Hernia
Constipation
- View other providers who treat Constipation
Gastroesophageal Reflux Disease (GERD)
- View other providers who treat Gastroesophageal Reflux Disease (GERD)
Acute Gastritis
- View other providers who treat Acute Gastritis
Diarrhea
- View other providers who treat Diarrhea
Heartburn
- View other providers who treat Heartburn
Unexplained Weight Loss
- View other providers who treat Unexplained Weight Loss
Intestinal Diverticulosis
- View other providers who treat Intestinal Diverticulosis
Irritable Bowel Syndrome
- View other providers who treat Irritable Bowel Syndrome
Duodenal Polypectomy
- View other providers who treat Duodenal Polypectomy
Abdominal Pain
- View other providers who treat Abdominal Pain
Anemia
- View other providers who treat Anemia
Cirrhosis
- View other providers who treat Cirrhosis
Colorectal Polyp
- View other providers who treat Colorectal Polyp
Congenital Anomaly Esophagus
- View other providers who treat Congenital Anomaly Esophagus
Duodenitis
- View other providers who treat Duodenitis
Dysphagia
- View other providers who treat Dysphagia
Esophageal Motility Disorders
- View other providers who treat Esophageal Motility Disorders
Gallstones
- View other providers who treat Gallstones
Gas-Bloat Syndrome
- View other providers who treat Gas-Bloat Syndrome
Gastritis
- View other providers who treat Gastritis
Gastrointestinal Bleeding
- View other providers who treat Gastrointestinal Bleeding
Gastrointestinal Malabsorption
- View other providers who treat Gastrointestinal Malabsorption
Gastroparesis
- View other providers who treat Gastroparesis
Gastroptosis
- View other providers who treat Gastroptosis
Hemorrhoids
- View other providers who treat Hemorrhoids
Inflammatory Bowel Disease
- View other providers who treat Inflammatory Bowel Disease
Intestinal Diverticulitis
- View other providers who treat Intestinal Diverticulitis
Intestinal Ulcer
- View other providers who treat Intestinal Ulcer
Nausea
- View other providers who treat Nausea
Non-Alcoholic Fatty Liver Disease
- View other providers who treat Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
- View other providers who treat Noninfectious Gastroenteritis and Colitis
Ulcerative Colitis
- View other providers who treat Ulcerative Colitis
Vomiting Disorders
- View other providers who treat Vomiting Disorders
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
- View other providers who treat Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Endoscopy (Esophagus, Stomach, Small Intestine)
- View other providers who treat Endoscopy (Esophagus, Stomach, Small Intestine)
ERCP (Endoscopic Retrograde Cholangiopancreatography)
- View other providers who treat ERCP (Endoscopic Retrograde Cholangiopancreatography)
Flexible Sigmoidoscopy
- View other providers who treat Flexible Sigmoidoscopy
Manometry
- View other providers who treat Manometry
Rigid Proctosigmoidoscopy
- View other providers who treat Rigid Proctosigmoidoscopy
Anal or Rectal Pain
- View other providers who treat Anal or Rectal Pain
Barrett's Esophagus
- View other providers who treat Barrett's Esophagus
Benign Neoplasm of the Digestive System
- View other providers who treat Benign Neoplasm of the Digestive System
Celiac Disease
- View other providers who treat Celiac Disease
Crohn's Disease
- View other providers who treat Crohn's Disease
Diffuse Esophageal Spasm
- View other providers who treat Diffuse Esophageal Spasm
Duodenal Ulcer
- View other providers who treat Duodenal Ulcer
Eosinophilic Esophagitis
- View other providers who treat Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
- View other providers who treat Esophageal Achalasia and Cardiospasm
Esophageal Diverticulum
- View other providers who treat Esophageal Diverticulum
Esophageal Ulcer
- View other providers who treat Esophageal Ulcer
Esophageal Varices
- View other providers who treat Esophageal Varices
Esophagitis
- View other providers who treat Esophagitis
Familial Adenomatous Polyposis
- View other providers who treat Familial Adenomatous Polyposis
Gastric Ulcer
- View other providers who treat Gastric Ulcer
Hepatitis B
- View other providers who treat Hepatitis B
Hepatitis B - Immune Response
- View other providers who treat Hepatitis B - Immune Response
Hepatitis C
- View other providers who treat Hepatitis C
Hernia
- View other providers who treat Hernia
Hiatal Hernia
- View other providers who treat Hiatal Hernia
Indigestion
- View other providers who treat Indigestion
Intestinal Obstruction
- View other providers who treat Intestinal Obstruction
Lactose Intolerance
- View other providers who treat Lactose Intolerance
Liver Damage from Alcohol
- View other providers who treat Liver Damage from Alcohol
Pancreatitis
- View other providers who treat Pancreatitis
Peptic Ulcer
- View other providers who treat Peptic Ulcer
Pernicious Anemia
- View other providers who treat Pernicious Anemia
Primary Sclerosing Cholangitis
- View other providers who treat Primary Sclerosing Cholangitis
Pyloric Stenosis
- View other providers who treat Pyloric Stenosis
Reflux Esophagitis
- View other providers who treat Reflux Esophagitis
Retroperitoneum Cancer
- View other providers who treat Retroperitoneum Cancer
Viral Hepatitis
- View other providers who treat Viral Hepatitis
Vitamin B12 Anemia
- View other providers who treat Vitamin B12 Anemia
Colon Cancer Screening
- View other providers who treat Colon Cancer Screening
Colorectal Cancer Screening
- View other providers who treat Colorectal Cancer Screening
Gallbladder Scan
- View other providers who treat Gallbladder Scan
Hepatitis A Screening
- View other providers who treat Hepatitis A Screening
Hepatitis B Virus Screening
- View other providers who treat Hepatitis B Virus Screening
Hepatitis C Virus Screening
- View other providers who treat Hepatitis C Virus Screening
Hepatitis Screening
- View other providers who treat Hepatitis Screening
Impedance Testing
- View other providers who treat Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
- View other providers who treat Instrumental Diagnostic Evaluation for Dysphagia
Liver Function Test
- View other providers who treat Liver Function Test
pH Probe
- View other providers who treat pH Probe
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Screening Colonoscopy
- View other providers who treat Screening Colonoscopy
Ultrasound, Endoanal
- View other providers who treat Ultrasound, Endoanal
Ultrasound, Esophageal
- View other providers who treat Ultrasound, Esophageal
VAP Lipid Testing
- View other providers who treat VAP Lipid Testing
Wireless pH Testing
- View other providers who treat Wireless pH Testing
Check your insurance
Please double-check when making an appointment.
View All Accepted Carriers
- Aetna
- Blue Cross Blue Shield
- Blue Cross Blue Shield of Arizona
- Cigna
- First Health
- Humana
- UnitedHealthCare
* Please verify this information when scheduling an appointment.
Ratings & Reviews
Reviews are displayed in date order and collected from patients who have agreed to reporting accurate and fair reviews. Providers with no reviews may have a new FindCare profile, or no submitted reviews on FindCare yet.
Learn more about how FindCare's ratings and reviews work
Reviews are displayed in date order and collected from patients who have agreed to reporting accurate and fair reviews. Providers with no reviews may have a new FindCare profile, or no submitted reviews on FindCare yet.
Learn more about how FindCare's ratings and reviews work
Learn more about how FindCare's ratings and reviews work
3.8
Average provider rating
Based on 10 ratings
Patient Ratings (10)
5 Star
(7)
4 Star
(0)
3 Star
(0)
2 Star
(0)
1 Star
(3)
Leave a review
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About Dr. Frederick Klein, MD
Specialties*
- Gastroenterology
-
*Healthline does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Specialties*
Years of Experience
- 44 years of experience
Years of Experience
Years of experience represents how long a provider has been practicing in their field since graduating from medical school. Not all providers will have this information available.
Languages Spoken
- English, Spanish
Languages Spoken
NPI Number
- 1962487876
NPI Number
A National Provider Identifier (NPI) is a unique 10-digit identifier issued by the government to healthcare providers.
Education & Certifications
Medical Education
- Northwestern University Feinberg School of Medicine
Medical Education
Board Certifications
- Gastroenterology and Internal Medicine
Board Certifications
What’s a board certification and why is it important that my provider has one?
A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
Frequently Asked Questions
Dr. Klein accepts Aetna, Blue Cross Blue Shield and Blue Cross Blue Shield of Arizona, and other major insurance plans. Please call ahead to confirm all accepted insurance plans.
Dr. Klein has indicated that they do offer telehealth services. Please call the provider’s office at for more information.
Dr. Klein works at
Dr. Klein has seen patients for Diaphragmatic and Hiatal Hernia, Constipation and Gastroesophageal Reflux Disease (GERD), and more. You can see other conditions treated by Dr. Klein on their profile. Please call the provider’s office to confirm all visit reasons.
Dr. Klein speaks Spanish.
10 patients have reviewed Dr. Klein. The overall rating for this provider is 3.8. You can read verified reviews and ratings and leave your own review based on your experience with Dr. Klein.
Whether a person prefers to schedule an appointment online or over the phone with Dr. Klein, there are benefits to both methods. A person calling to schedule an with Dr. Klein appointment can ask questions about the practice, provider availability, conditions treated, procedures performed, and if their insurance carrier is accepted. While online scheduling is quicker, easier, allows one to view a wide range of appointment times, and may provide the ability to sync with a personal calendar.
