David M. Parker
Elite in Hernia

Dr. David M. Parker

Bariatric Medicine | General Surgery
Geisinger Health System
Geisinger Medical Center - General Surgery
100 North Academy Avenue, 
Danville, PA 
Accepting New Patients

Elite in Hernia
Geisinger Health System
Geisinger Medical Center - General Surgery
100 North Academy Avenue, 
Danville, PA 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

David M. Parker, MD, FACS, FASMBS, is a board-certified general surgeon specializing in bariatric surgery for both adolescents and adults. Dr. Parker performs several advanced and specialized surgical procedures, including gastric bypass, biliopancreatic diversion with duodenal switch, revisional bariatric surgery, laparoscopic gastric band (or “lap band”) and gastric sleeve. He also provides care for various conditions affecting the stomach and gastrointestinal (GI) system, including hiatal hernia, paraesophageal hernia, achalasia and acid reflux.|He has a clinical interest in minimally invasive laparoscopic and robotic surgery.|Board-certified in general surgery, Dr. Parker earned his medical degree from West Virginia University in Morgantown. He completed a general surgery residency at the Dwight D. Eisenhower Army Medical Center in Fort Gordon, GA, followed by a fellowship in bariatric and foregut surgery at Geisinger Medical Center in Danville.|While in medical school, he received the Presidential Award for Excellence in Scholarship. During his fellowship, he received the SAGES Award for best fellow presentation.|Dr. Parker serves as program director for the Geisinger bariatric and foregut surgical fellowship. He has a strong commitment to research in bariatric and foregut surgery and has authored more than 24 published articles.|He is an active member of the Society of Gastrointestinal and Endoscopic Surgeons and a fellow of the American College of Surgeons and American Society of Metabolic and Bariatric Surgeons.|Dr. Parker has served in the United States Army and continues to serve as a lieutenant colonel in the United States Army Reserve. He is also a football enthusiast, rooting for the West Virginia Mountaineers in his free time.

Dr. Parker is rated as an Elite provider by MediFind in the treatment of Hernia. His top areas of expertise are Hiatal Hernia, Hernia, Obesity, Gastric Bypass, and Endoscopy.

His clinical research consists of co-authoring 40 peer reviewed articles. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 7 articles in the study of Hernia.

Graduate Institution
West Virginia U.- Morgantown, WV, 2003 - Doctor Of Medicine
Residency
Dwight David Eisenhower Army Medical Center, 2008
Specialties
Bariatric Medicine
General Surgery
Licenses
Surgery in PA
Fellowships
Geisinger Medical Center, 2013
Hospital Affiliations
Geisinger Medical Center
Geisinger-Lewistown Hospital
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Capital Blue Cross
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER MEDICARE PART D
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Geisinger
  • HMO
  • POS
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Moda Health
  • EPO
  • PPO
Nippon Life
  • INSURANCE PLAN
PA Health and Wellness
  • HMO
  • MANAGED MEDICAID PLAN
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
UPMC
  • EPO
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 9 Less Insurance Carriers -

Locations

Geisinger Medical Center - General Surgery
100 North Academy Avenue, Danville, PA 17822
Call: 800-275-6401
Other Locations
Geisinger Medical Center - General Surgery
100 North Academy Avenue, Danville, PA 17822
Call: 800-275-6401
Geisinger Healthplex State College - General Surgery
132 Abigail Lane, Port Matilda, PA 16870
Call: 800-230-4565
Geisinger Healthplex State College - General Surgery
132 Abigail Lane, Port Matilda, PA 16870
Call: 800-230-4565

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


40 Total Publications

The longitudinal inefficiency of robotic bariatric surgery: can we finally agree we are over the learning curve and robotic bariatric surgery just takes longer?
The longitudinal inefficiency of robotic bariatric surgery: can we finally agree we are over the learning curve and robotic bariatric surgery just takes longer?
Journal: Surgical endoscopy
Published: August 11, 2025
View All 40 Publications
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Elite in Hernia
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 (48.8 miles away)
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Languages Spoken:
English
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Offers Telehealth

Eric Pauli is a General Surgeon in Hershey, Pennsylvania. Dr. Pauli is rated as a Distinguished provider by MediFind in the treatment of Hernia. His top areas of expertise are Hernia, Gastrointestinal Fistula, Choledocholithiasis, Gastrostomy, and Gallbladder Removal.

Anthony T. Petrick
Distinguished in Hernia
Dr. Anthony T. Petrick
General Surgery | Bariatric Medicine
Distinguished in Hernia
Dr. Anthony T. Petrick
General Surgery | Bariatric Medicine

Geisinger Medical Center - General Surgery

100 North Academy Avenue, 
Danville, PA 
 (0.1 miles away)
800-275-6401
Languages Spoken:
English
See accepted insurances
Accepting New Patients

Anthony T. Petrick, MD, FACS, FASMBS, is a board-certified general surgeon specializing in esophageal and bariatric surgery. Dr. Petrick performs a number of advanced and specialized surgical procedures including advanced endoscopy, revisional bariatric surgery, laparoscopic gastric band (or “lap band”), gastric bypass, biliopancreatic diversion with duodenal switch and gastric sleeve. He also treats people for various conditions affecting the stomach and gastrointestinal (GI) system, including hiatal and paraesophageal hernia, achalasia and acid reflux (GERD).|Board-certified in general surgery, Dr. Petrick earned his medical degree from Georgetown University in Washington, D.C. He completed general surgery residency at Georgetown University Medical Center in Washington, D.C. He then completed a fellowships in Surgical Oncology at and Beth Israel Deaconess Medical Center in Boston and in Bariatric and Foregut surgery at the University of Pittsburgh Medical Center.|For the past 18 years, Dr. Petrick served as program director for the Geisinger bariatric and foregut surgical fellowship. He now serves as associate program director, acting as a mentor to bariatric surgery fellows. Dr. Petrick has a strong commitment to research in bariatric and foregut surgery and has authored more than 100 articles. Currently, he serves as chief quality officer for inpatient services at Geisinger and Director of the Division of Bariatric and Foregut surgery.|Dr. Petrick is an active member of the Society of Gastrointestinal and Endoscopic Surgeons and a fellow of the American College of Surgeons and American Society of Metabolic and Bariatric Surgeons. He chairs to Data and Quality Committee for the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program and also serves as an editorial board member for the journal Surgical and Obesity-Related Diseases and a columnist for Bariatric Times.|In his free time, Dr. Petrick serves on the board of education at St. Joseph School in Danville. He also coaches the Susquehanna Valley Stampede varsity and junior varsity ice hockey teams.|Clinical Focus: Bariatric Surgery|If you’re a provider who’d like to refer a patient, call our 24/7 referral line at 800-332-8901 or visit www.emr-link.com. Dr. Petrick is rated as a Distinguished provider by MediFind in the treatment of Hernia. His top areas of expertise are Obesity, Hiatal Hernia, Hernia, Gastric Bypass, and Endoscopy.

Distinguished in Hernia
Dr. Jon D. Gabrielsen
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Evangelical Medical Services Organization

25 Lystra Rogers Dr, 
Lewisburg, PA 
 (14.9 miles away)
570-523-3290
Languages Spoken:
English
See accepted insurances

Jon Gabrielsen is a General Surgeon in Lewisburg, Pennsylvania. Dr. Gabrielsen is rated as a Distinguished provider by MediFind in the treatment of Hernia. His top areas of expertise are Hiatal Hernia, Hernia, Achalasia, Gastric Bypass, and Gallbladder Removal.

VIEW MORE HERNIA DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Parker's expertise for a condition
ConditionClose
  • Elite
  • Hernia
    Dr. Parker is
    Elite
    . Learn about Hernia.
    See more Hernia experts
  • Hiatal Hernia
    Dr. Parker is
    Elite
    . Learn about Hiatal Hernia.
    See more Hiatal Hernia experts
  • Distinguished
  • Endoscopy
    Dr. Parker is
    Distinguished
    . Learn about Endoscopy.
    See more Endoscopy experts
  • Gastric Bypass
    Dr. Parker is
    Distinguished
    . Learn about Gastric Bypass.
    See more Gastric Bypass experts
  • Obesity
    Dr. Parker is
    Distinguished
    . Learn about Obesity.
    See more Obesity experts
  • Advanced
  • Congenital Diaphragmatic Hernia
    Dr. Parker is
    Advanced
    . Learn about Congenital Diaphragmatic Hernia.
    See more Congenital Diaphragmatic Hernia experts
  • Diaphragmatic Hernia
    Dr. Parker is
    Advanced
    . Learn about Diaphragmatic Hernia.
    See more Diaphragmatic Hernia experts
  • Gallbladder Removal
    Dr. Parker is
    Advanced
    . Learn about Gallbladder Removal.
    See more Gallbladder Removal experts
  • Gastrectomy
    Dr. Parker is
    Advanced
    . Learn about Gastrectomy.
    See more Gastrectomy experts
  • Gastroesophageal Reflux Disease (GERD)
    Dr. Parker is
    Advanced
    . Learn about Gastroesophageal Reflux Disease (GERD).
    See more Gastroesophageal Reflux Disease (GERD) experts
  • Malnutrition
    Dr. Parker is
    Advanced
    . Learn about Malnutrition.
    See more Malnutrition experts
View All 7 Advanced Conditions
  • Experienced
  • Achalasia
    Dr. Parker is
    Experienced
    . Learn about Achalasia.
    See more Achalasia experts
  • Barrett Esophagus
    Dr. Parker is
    Experienced
    . Learn about Barrett Esophagus.
    See more Barrett Esophagus experts
  • Bile Duct Stricture
    Dr. Parker is
    Experienced
    . Learn about Bile Duct Stricture.
    See more Bile Duct Stricture experts
  • Biliary Dyskinesia
    Dr. Parker is
    Experienced
    . Learn about Biliary Dyskinesia.
    See more Biliary Dyskinesia experts
  • Esophagitis
    Dr. Parker is
    Experienced
    . Learn about Esophagitis.
    See more Esophagitis experts
  • Gallbladder Disease
    Dr. Parker is
    Experienced
    . Learn about Gallbladder Disease.
    See more Gallbladder Disease experts
View All 19 Experienced Conditions
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