4.6
20 Ratings with 12 written Reviews
Summary
Dr. John Horwhat is a gastroenterologist with expertise in internal medicine who earned his medical degree from Lewis Katz School of Medicine at Temple University. He completed his residency training at Madigan Healthcare System and brings 34 years of clinical experience to his practice. Dr. Horwhat is fluent in Chinese, English, Korean, Spanish, and Vietnamese, allowing him to serve patients from diverse cultural backgrounds.
Dr. Horwhat practices at multiple locations throughout Lancaster and Ephrata, Pennsylvania, with affiliations at Wellspan Ephrata Community Hospital, Lancaster General Hospital, and Penn State Health Lancaster Medical Center. He specializes in treating colon polyps, diverticular disease, and diverticulosis. His procedural expertise includes performing colonoscopies, lower gastrointestinal endoscopy, and providing infusion therapy services. Patients have given him an average rating of 4.6 out of 5 stars.
Dr. Horwhat practices at multiple locations throughout Lancaster and Ephrata, Pennsylvania, with affiliations at Wellspan Ephrata Community Hospital, Lancaster General Hospital, and Penn State Health Lancaster Medical Center. He specializes in treating colon polyps, diverticular disease, and diverticulosis. His procedural expertise includes performing colonoscopies, lower gastrointestinal endoscopy, and providing infusion therapy services. Patients have given him an average rating of 4.6 out of 5 stars.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 34 years of experience
- 35 insurance plans accepted
- speaks Chinese, English, Korean, Spanish, Vietnamese
- Madigan Healthcare System
- 12 written reviews
- 2 specialties
- 11 areas of expertise
- 2 board certifications
- 1 hospital affiliation
- 5 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. John David Horwhat has 5 locationsUs Digestive Health
2112 Harrisburg Pike Ste 202Lancaster, PA 17601 Tel: (717) 869-4600
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Midatlantic Endoscopy 2
4140 Oregon PikeEphrata, PA 17522 Tel: (717) 283-4790
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Midatlantic Endoscopy 1
2112 Harrisburg Pike Ste 100Lancaster, PA 17601Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. John David Horwhat, MD | David S. Weinberg | Malorie Simons | Minhhuyen T. Nguyen |
| Gastroenterology | Gastroenterology | Gastroenterology | Gastroenterology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 34 Years of Experience | 37 Years of Experience | 12 Years of Experience | 39 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks Chinese, English, Korean, Spanish, Vietnamese | Speaks English | ||
| Lancaster , PA | Philadelphia , PA | Philadelphia , PA | Philadelphia , PA |
| Med School: Lewis Katz School Of Medicine At Temple University | Med School: Weill Cornell Medical College | Med School: Albany Medical College | Med School: Harvard Medical School |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John David Horwhat
Medical Specialties
Dr. John David Horwhat has the following 2 specialties
Specialty Expertise
Dr. John David Horwhat has the following 11 areas of expertise
Certifications, License, & Education
34 Years Experience
Dr. John David Horwhat holds an active medical license in the state of Pennsylvania.
Medical License
Medical Doctor with an active medical license in the state of Pennsylvania that expires in 2026.
Education & Training
Residency
Completed their residency at Madigan Healthcare System.
Medical School
Graduated from Lewis Katz School Of Medicine At Temple University in 1992.
NPI Number
Dr. Horwhat's NPI number is 1487747242.
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Frequently Asked Questions
- Does Dr. John Horwhat accept my insurance?
- You can see the insurance plans that Dr. John Horwhat accepts on their Vitals profile.
- Is Dr. John Horwhat accepting new patients?
- Dr. John Horwhat is accepting new patients on Vitals. View Dr. John Horwhat's profile on Vitals to make an appointment.
- How can I make an appointment with Dr. John Horwhat?
- You can find contact information for Dr. John Horwhat here on Vitals.
- Where is Dr. John Horwhat's office located?
- Dr. John Horwhat's office is located at 2112 Harrisburg Pike Ste 202, Lancaster, PA, 17601.
- Which hospitals is Dr. John Horwhat affiliated with?
- Dr. John Horwhat is affiliated with Wellspan Ephrata Community Hospital.
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