43 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Deschner, Gastroenterologist in San Marcos, TX?
Dr. William Deschner, MD is a Gastroenterologist, who primarily practices in San Marcos, TX with 2 additional practice locations. He has been practicing for over 43 years and is board certified by the American Board of Internal Medicine. Dr. Deschner graduated from Baylor College of Medicine and completed his residency at Georgetown Univ Hosp, Gastroenterology; Baylor Coll Of Med, Internal Medicine. Dr. Deschner is fluent in English and Spanish, and is currently seeing new patients. Dr. Deschner’s practice accepts Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Deschner’s office.
What are Areas of Expertise for Dr. Deschner?
Dr. William Deschner, MD is a highly-rated, board-certified Gastroenterologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Deschner empowers patients to confidently navigate their health journey, specializing in Colonoscopy, Endoscopy, Gastroesophageal Reflux Disease (GERD), or comprehensive wellness support. Serving the San Marcos/TX community, Dr. Deschner is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Deschner go to medical school and complete their residency?
Fellowship: Gastroenterology - (Medstar-Georgetown Med Ctr)
Residency: Georgetown Univ Hosp, Gastroenterology; Baylor Coll Of Med, Internal Medicine | Baylor College of Medicine Affiliated Hospitals | Baylor College of Medicine Program
Medical School: Baylor College of Medicine
Is Dr. Deschner board certified in Gastroenterologist?
Yes, Dr. William Deschner, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Deschner speak?
Dr. Deschner and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Deschner treat?
As a Gastroenterologist, Dr. Deschner 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. Deschner. 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:
- Benign Transverse Colon Polyp
- Benign Cecum Polyp
- Benign Ascending Colon Polyp
- Benign Descending Colon Polyp
- Benign Tumor
- Colonic Polyps
- Colon Polyps
- Non-cancerous transverse colon growth
- Transverse colon adenoma
- Transverse colon benign tumor
- Non-cancerous cecum growth
- Cecal adenoma
- Cecum benign tumor
- Non-cancerous ascending colon growth
- Ascending colon adenoma
- Ascending colon benign tumor
- Non-cancerous descending colon growth
- Descending colon adenoma
- Descending colon benign tumor
ICD-10 Codes:
- D123: Benign neoplasm of transverse colon
- D120: Benign neoplasm of cecum
- D122: Benign neoplasm of ascending colon
- D124: Benign neoplasm of descending colon
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:
- Acid Reflux
- GERD with Esophagitis
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Eosinophilic Esophagitis
- Gastroesophageal Reflux
- Heartburn
- Indigestion
- Reflux Esophagitis
- Acid Reflux Esophagus Inflammation
- Heartburn with Esophagus Damage
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
- K2100: Gastro-esophageal reflux disease with esophagitis, without bleeding
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
- Z860100: Personal history of colon polyps, unspecified
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:
- Dark, Tarry Stools (Melena)
- Gastrointestinal Bleeding
- Melena
- Black Stools
- Upper GI Bleed Signs
ICD-10 Codes:
- K921: Melena
Also known as:
- Blocked Esophagus
- Esophagus Disorder
- Esophageal Obstruction
- Food Pipe Blockage
- Swallowing Difficulty
ICD-10 Codes:
- K222: Esophageal obstruction
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Upper Middle Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R1013: Epigastric pain
Also known as:
- Iron Deficiency Anemia
- Anemia
- Iron
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
ICD-10 Codes:
- D509: Iron deficiency anemia, unspecified
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Also known as:
- Stomach and Duodenum Disorder
- Stomach Disorder
- Gastric Conditions
- Duodenal Conditions
- Digestive System Disorders
ICD-10 Codes:
- K3189: Other diseases of stomach and duodenum
Also known as:
- Other Intestinal Condition
- Colonic Disease
- Small Intestine Disorder
- Bowel Conditions
- Gut Problems
- Digestive Issues
ICD-10 Codes:
- K6389: Other specified diseases of intestine
Also known as:
- Follow-up After Treatment (Non-Cancer)
- Post-Treatment Check-up
- Aftercare Visit
- Recovery Monitoring Exam
ICD-10 Codes:
- Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm
Also known as:
- Chronic Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Chronic gastritis
- Long-term stomach inflammation
- Persistent stomach lining inflammation
ICD-10 Codes:
- K2950: Unspecified chronic gastritis without bleeding
Which procedures does Dr. Deschner perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. William Deschner may include:
- Colonoscopy
- Colonoscopy Consultation
- Colorectal Cancer Screening
- Endoscopic Ultrasound
- Endoscopy / Endoscopic Ultrasound
- Gastric Balloon
- Gastric Stimulator Implantation Consultation
- Gastric Stimulator Implantation Follow Up
For detailed information, please contact Dr. Deschner's office.
Does Dr. Deschner accept my insurance?
Dr. Deschner accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Deschner accept in San Marcos, TX?
Dr. Deschner in San Marcos, TX accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
CVS Health (formerly Aetna)
Department of Defense / Tricare
Department of Veterans Affairs
Health Care Service Corporation (HCSC)
Healthcare Advantage
Humana
Medicare
Other Health Care Provider
UnitedHealthcare
View All Insurances
Where is Dr. Deschner's office located?
Dr. William Deschner's Primary Practice
1305 Wonder World Dr Ste 200
San Marcos, TX 78666
What is Dr. Deschner's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Deschner's National Provider Identifier (NPI) number is 1023003563.
What common questions do patients ask about Dr. Deschner?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Deschner
What is Dr. William Deschner's specialty?
Dr. Deschner is a Gastroenterologist near San Marcos, TX. 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. Deschner to book an appointment today.
Is this Dr. William Deschner affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Deschner is affiliated with Resolute Baptist Hospital which is a Castle Connolly Top Hospital. 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 William Deschner accepting new patients in San Marcos, TX?
Yes, Dr. William Deschner is accepting new patients at this time.
Does Dr. William Deschner offer online booking?
Please contact Dr. Deschner's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with William Deschner?
Please contact Dr. Deschner's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. William Deschner have?
Dr. William Deschner is certified by the American Board of Internal Medicine.
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