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Mark Johnston MD in Lancaster, Pennsylvania

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Mark Johnston MD has Gastroenterology as his primary medical specialty. Their primary office is: 2112 Harrisburg Pike in Lancaster, Pennsylvania.

They're a part of the: Regional Gastroenterology Associates Of Lancaster, Ltd. medical group which has around 237 members. You can call their office at 717-869-4600 to schedule an appointment. They also accept the Medicare-approved amount as payment in full. They attended Hahnemann University College Of Medicine and graduated in 1985 (around 39 years of experience). They are listed as doing telehealth appointments.


Mark H. Johnston MD Office Phone and Directions

Mark Johnston MD
Regional Gastroenterology Associates Of Lancaster, Ltd.
2112 Harrisburg Pike
Lancaster, Pennsylvania 17601
717-869-4600


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Phone: 717-869-4600


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Healthcare Info for Mark Johnston MD

Medical School: Hahnemann University College Of Medicine
Graduation Year: 1985
The Primary Medical Specialty for Mark Johnston MD is listed as: Gastroenterology
Credentials: MD
Additional Credentials:
Approximate Years of Experience: 39
PAC (PECOS ID)#: 7618908500
NPI #: 1003898131
NPI Created On: 11/15/2005
NPI Last Updated Listed as: 06/13/2019
Primary Taxonomy Code: 207RG0100X
License Number:
MD425522
Listed Gender: Male

Insurance, Services, Charges


Forms of insurance accepted by include, but are not limited to:

  • AmeriHealth New Jersey
  • Blue Cross Blue Shield
  • Capital Advantage Assurance Company
  • Highmark Health Insurance Company
  • AmeriHealth HMO, Inc.
  • Humana
  • Highmark Inc.
  • UPMC Health Options, Inc.
  • Geisinger Health Plan
  • Geisinger Quality Options
  • Medicare

They are listed as accepting new patients.

Languages spoken by staff include: English, Vietnamese, Spanish, Mandarin, Hindi, Gujarati, Chinese.


Services and Procedures include:

  1. Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope
  2. Biopsy of the esophagus, stomach, and/or upper small bowel using an endoscope
  3. Balloon dilation of esophagus using an endoscope
  4. Destruction of growths on esophagus, stomach, and/or upper small bowel using an endoscope
  5. Dilation of esophagus
  6. Diagnostic examination of large bowel using an endoscope
  7. Biopsy of large bowel using an endoscope
  8. Removal of polyps or growths of large bowel using an endoscope
  9. New patient office or other outpatient visit, typically 45 minutes
  10. Established patient office or other outpatient visit, typically 15 minutes
  11. Established patient office or other outpatient, visit typically 25 minutes
  12. Initial hospital inpatient care, typically 70 minutes per day
  13. Subsequent hospital inpatient care, typically 15 minutes per day
  14. Subsequent hospital inpatient care, typically 25 minutes per day
  15. Colorectal cancer screening; colonoscopy on individual at high risk

They took part in Medicare's Electronic Health Record Incentive Program which was designed to help move people over to electronic records and improve the systems that were already in place.
They took part in the Medicare Physician Quality Reporting System (PQRS).

Open Payments Data. This can include items to test (Durable Medical Equipment (DME)), Biological, Drug Samples, etc. This data must be reported to CMS.


Payments Total: $17

Number of Payments:: 1

Form of Payment: In-kind items and services

Record ID:: 794985003

Being Disputed:: No

Product Related: Yes

Drug or Biological: Biological

Product Category #1: IMMUNOLOGY

Name of Drug #1: HUMIRA

Open Associated Drug #1: 0074-0554-02


Payments Total: $16

Number of Payments:: 1

Form of Payment: In-kind items and services

Record ID:: 794985007

Being Disputed:: No

Product Related: Yes

Drug or Biological: Biological

Product Category #1: IMMUNOLOGY

Name of Drug #1: HUMIRA

Open Associated Drug #1: 0074-0554-02


Payments Total: $20

Number of Payments:: 1

Form of Payment: In-kind items and services

Record ID:: 794985011

Being Disputed:: No

Product Related: Yes

Drug or Biological: Biological

Product Category #1: IMMUNOLOGY

Name of Drug #1: HUMIRA

Open Associated Drug #1: 0074-0554-02


Payments Total: $16

Number of Payments:: 1

Form of Payment: In-kind items and services

Record ID:: 794985015

Being Disputed:: No

Product Related: Yes

Drug or Biological: Biological

Product Category #1: IMMUNOLOGY

Name of Drug #1: HUMIRA

Open Associated Drug #1: 0074-0554-02


Payments Total: $13

Number of Payments:: 1

Form of Payment: Cash or cash equivalent

Record ID:: 783678983

Being Disputed:: No

Product Related: Yes

Drug or Biological: Drug

Product Category #1: Neuroscience

Name of Drug #1: ZEPOSIA

Open Associated Drug #1: 59572-820-30


Payments Total: $13

Number of Payments:: 1

Form of Payment: Cash or cash equivalent

Record ID:: 783678985

Being Disputed:: No

Product Related: Yes

Drug or Biological: Drug

Product Category #1: Neuroscience

Name of Drug #1: ZEPOSIA

Open Associated Drug #1: 59572-820-30


Payments Total: $13

Number of Payments:: 1

Form of Payment: In-kind items and services

Record ID:: 820000095

Being Disputed:: No

Product Related: Yes

Drug or Biological: Drug

Product Category #1: INTERNAL MEDICINE

Name of Drug #1: MOTEGRITY

Open Associated Drug #1: 54092-546-01


Payments Total: $16

Number of Payments:: 1

Form of Payment: In-kind items and services

Record ID:: 820000099

Being Disputed:: No

Product Related: Yes

Drug or Biological: Drug

Product Category #1: INTERNAL MEDICINE

Name of Drug #1: MOTEGRITY

Open Associated Drug #1: 54092-546-01


Gastroenterology Professionals in Lancaster

2112 Harrisburg Pike
Lancaster, PA
Regional Gastroenterology Associates Of Lancaster, Ltd.

2112 Harrisburg Pike
Lancaster, PA
Regional Gastroenterology Associates Of Lancaster, Ltd.

2112 Harrisburg Pike
Lancaster, PA
Regional Gastroenterology Associates Of Lancaster, Ltd.

2112 Harrisburg Pike
Lancaster, PA
Regional Gastroenterology Associates Of Lancaster, Ltd.

2112 Harrisburg Pike
Lancaster, PA
Regional Gastroenterology Associates Of Lancaster, Ltd.

2112 Harrisburg Pike
Lancaster, PA
Regional Gastroenterology Associates Of Lancaster, Ltd.

Providers in Regional Gastroenterology Associates Of Lancaster, Ltd.

1.Nicole Adametz

300 Spring Creek Ln
Uniontown Pa 15401-9069
Regional Gastroenterology Associates Of Lancaster, Ltd.
Physician Assistant

2.Nicole Adametz

2112 Harrisburg Pike
Lancaster Pa 17601-2644
Regional Gastroenterology Associates Of Lancaster, Ltd.
Physician Assistant

3.Faiz Afridi

825 Town Ctr Dr
Langhorne Pa 19047-1793
Regional Gastroenterology Associates Of Lancaster, Ltd.
Gastroenterology

4.Nasir Akhtar

915 Old Fern Hill Rd
West Chester Pa 19380-4269
Regional Gastroenterology Associates Of Lancaster, Ltd.
Internal Medicine

5.Nicole Albert

325 Central Ave
Malvern Pa 19355-3265
Regional Gastroenterology Associates Of Lancaster, Ltd.
Gastroenterology

6.Rajih Alkhafaji

2112 Harrisburg Pike
Lancaster Pa 17601-2644
Regional Gastroenterology Associates Of Lancaster, Ltd.
Gastroenterology

View all 237 members of Regional Gastroenterology Associates Of Lancaster, Ltd. medical group