27 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Mark, Gastroenterologist in Turlock, CA?
Dr. Jeffrey Mark, MD is a Gastroenterologist, who primarily practices in Turlock, CA with 1 additional practice location. He has been practicing for over 27 years and is board certified. Dr. Mark graduated from Columbia University School of Engineering and completed his residency at Finch U Hlth Sci/Chgo M Sch, Gastroenterology; Evanston Hosp, Internal Medicine. Dr. Mark is fluent in English and Chinese, and is currently seeing new patients. Dr. Mark’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mark’s office at (209) 669-5000.
Where did Dr. Mark go to medical school and complete their residency?
Fellowship: University Of Health Sciences/Chicago Medical School | Chicago Medical School at Rosalind Franklin University of Medicine and Science Program
Residency: Finch U Hlth Sci/Chgo M Sch, Gastroenterology; Evanston Hosp, Internal Medicine | Evanston Hospital | Evanston Hospital | University of Texas Medical Branch Hospitals Program | Evanston Hospital
Medical School: University Of Il Coll Of Med- Chicago Il | Columbia University School of Engineering | University of Illinois College of Medicine at Chicago Program
Is Dr. Mark board certified as a Gastroenterologist?
Yes, Dr. Jeffrey Mark, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Mark speak?
Dr. Mark and their clinical team can communicate with patients in the following languages:
Chinese
English
What conditions does Dr. Mark treat?
As a Gastroenterologist, Dr. Mark diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Mark. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Large Intestine Diverticulosis
- Diverticulosis and Diverticulitis
- Diverticular Disease
- Colon Diverticula
- Pockets in the Colon
ICD-10 Codes:
- K5730: Diverticulosis of large intestine without perforation or abscess without bleeding
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Rectal Bleeding
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- Anal Bleeding
- Blood in Stool
- Lower GI Bleed
ICD-10 Codes:
- K625: Hemorrhage of anus and rectum
Also known as:
- Indigestion
- Gas in the Digestive Tract
- Indigestion (Dyspepsia)
- Dyspepsia
- Upset Stomach
- Stomach Discomfort
ICD-10 Codes:
- K30: Functional dyspepsia
Also known as:
- Barrett's Esophagus
- Esophagus Disorder
- Barrett’s Esophagus
- Barrett's condition
- Esophageal metaplasia
ICD-10 Codes:
- K2270: Barrett's esophagus without dysplasia
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
What procedures does Dr. Mark perform?
As a Gastroenterologist, Dr. Mark performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Mark. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Colonoscopy with Biopsy
- Colonoscopy with Polyp Removal
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
CPT Codes:
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Upper Endoscopy with Biopsy
- Biopsy
- Endoscopy
- EGD with Biopsy
- Gastroscopy with Biopsy
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple
Also known as:
- EGD with Esophageal Balloon Dilation
- Upper Endoscopy with Esophageal Dilation
- Flexible Esophagoscopy with Balloon
- EGD with Balloon Widening
CPT Codes:
- 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
Also known as:
- Hemorrhoid Removal with Rubber Band Ligation
- Rubber Band Ligation for Hemorrhoids
- Internal Hemorrhoid Ligation
- Banding of Hemorrhoids
- Hemorrhoid Banding
CPT Codes:
- 46221: Hemorrhoidectomy, internal, by rubber band ligation(s)
Does Dr. Mark accept my insurance?
Dr. Mark accepts most major insurance plans. Important: Please call our office at (209) 669-5000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Mark accept in Turlock, CA?
Dr. Mark in Turlock, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
Centene
Crown Cork and Seal Company
CVS Health (formerly Aetna)
Department of Defense / Tricare
Elevance Health Inc. (formerly Anthem)
Express Scripts
Medicare
UnitedHealthcare
View All Insurances
Where is Dr. Mark's office located?
Dr. Jeffrey Mark's Primary Practice
2101 Geer Rd Ste 118
Turlock, CA 95382
(209) 669-5000
What is Dr. Mark's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Mark's National Provider Identifier (NPI) number is 1487603155.
What common questions do patients ask about Dr. Mark?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Mark
What is Dr. Jeffrey Mark's specialty?
Dr. Mark is a Gastroenterologist near Turlock, CA. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Mark to book an appointment today.
Is this Dr. Jeffrey Mark affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Mark is affiliated with John Muir Health Walnut Creek Medical Center, Memorial Medical Center - Modesto, CA, Tahoe Forest Hospital, Emanuel Medical Center - Turlock, CA, Mills-Peninsula Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Gastroenterologist?
Explore Gastroenterologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Jeffrey Mark accepting new patients in Turlock, CA?
Yes, Dr. Jeffrey Mark is accepting new patients at this time.
Does Dr. Jeffrey Mark offer online booking?
Please contact Dr. Mark's office at (209) 669-5000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Jeffrey Mark?
Please contact Dr. Mark's office at (209) 669-5000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Jeffrey Mark have?
Dr. Jeffrey Mark is certified by the American Board of Internal Medicine.
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