Mark H Johnston, MD - Medicare Gastroenterology in Lancaster, PA

Mark H Johnston, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Lancaster, Pennsylvania. He went to Hahnemann University College Of Medicine and graduated in 1985 and has 39 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Regional Gastroenterology Associates Of Lancaster, Ltd. and his current practice location is 2112 Harrisburg Pike, Suite 202, Lancaster, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (717) 544-3500.

Mark H Johnston is licensed to practice in Pennsylvania (license number MD425522) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1003898131.

Contact Information

Mark H Johnston, MD
2112 Harrisburg Pike, Suite 202,
Lancaster, PA 17601-2644
(717) 544-3500
(717) 544-3501



Physician's Profile

Full NameMark H Johnston
GenderMale
SpecialityGastroenterology
Experience39 Years
Location2112 Harrisburg Pike, Lancaster, Pennsylvania
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mark H Johnston attended and graduated from Hahnemann University College Of Medicine in 1985
  NPI Data:
  • NPI Number: 1003898131
  • Provider Enumeration Date: 11/15/2005
  • Last Update Date: 06/13/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 7618908500
  • Enrollment ID: I20050831000030

Medical Identifiers

Medical identifiers for Mark H Johnston such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003898131NPI-NPPES
093677KKUOtherPAMEDICARE
P01832235OtherPARR MEDICARE
1012082120002MedicaidPA
1012082120004MedicaidPA
1012082120005MedicaidPA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology MD425522 (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Lancaster General HospitalLancaster, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regional Gastroenterology Associates Of Lancaster, Ltd.4688575434236

News Archive

New way to combat dengue fever

The spread of Dengue fever in northern Australia may be controlled by a bacterium that infects mosquitoes that harbor the virus, Australian and U.S. researchers report Aug. 25 in two papers published in the journal Nature.

Consumer Watchdog urges President Obama not to sacrifice malpractice victims

President Obama should not make innocent Americans injured by cost-cutting hospitals and negligent doctors a political sacrifice in his quest for health care reform, said Consumer Watchdog in advance of the President's health care speech tonight.

BMP8B plays a key role in regulating thermogenesis in brown adipose tissue

Bone morphogenetic protein 8B (BMP8B) plays a key role in regulating thermogenesis in brown adipose tissue, according to the findings of a research work published in Cell, the journal with the most impact on the field of biomedicine and molecular biology.

Global Fund releases mid-year results for HIV, TB, malaria

The Global Fund to Fight AIDS, Tuberculosis and Malaria announced mid-year results for HIV and TB treatment as well as for insecticide-treated net distribution, Sify News reports.

BRIC ministers reach agreement on promoting global food security

Brazil, Russia, India and China, collectively known as BRIC, have reached an agreement to promote global food security, the Moscow Times reports (Anishyuk, 3/29).

Read more Medical News

› Verified 5 days ago

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Mark H Johnston allows following entities to bill medicare on his behalf.
Entity NameRegional Gastroenterology Associates Of Lancaster, Ltd.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154422806
PECOS PAC ID: 4688575434
Enrollment ID: O20040115000777

News Archive

New way to combat dengue fever

The spread of Dengue fever in northern Australia may be controlled by a bacterium that infects mosquitoes that harbor the virus, Australian and U.S. researchers report Aug. 25 in two papers published in the journal Nature.

Consumer Watchdog urges President Obama not to sacrifice malpractice victims

President Obama should not make innocent Americans injured by cost-cutting hospitals and negligent doctors a political sacrifice in his quest for health care reform, said Consumer Watchdog in advance of the President's health care speech tonight.

BMP8B plays a key role in regulating thermogenesis in brown adipose tissue

Bone morphogenetic protein 8B (BMP8B) plays a key role in regulating thermogenesis in brown adipose tissue, according to the findings of a research work published in Cell, the journal with the most impact on the field of biomedicine and molecular biology.

Global Fund releases mid-year results for HIV, TB, malaria

The Global Fund to Fight AIDS, Tuberculosis and Malaria announced mid-year results for HIV and TB treatment as well as for insecticide-treated net distribution, Sify News reports.

BRIC ministers reach agreement on promoting global food security

Brazil, Russia, India and China, collectively known as BRIC, have reached an agreement to promote global food security, the Moscow Times reports (Anishyuk, 3/29).

Read more Medical News

› Verified 5 days ago

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Mark H Johnston is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Mark H Johnston, MD
2112 Harrisburg Pike Ste 202,
Lancaster, PA 17601-2644

Ph: (717) 869-4600
Mark H Johnston, MD
2112 Harrisburg Pike, Suite 202,
Lancaster, PA 17601-2644

Ph: (717) 544-3500

News Archive

New way to combat dengue fever

The spread of Dengue fever in northern Australia may be controlled by a bacterium that infects mosquitoes that harbor the virus, Australian and U.S. researchers report Aug. 25 in two papers published in the journal Nature.

Consumer Watchdog urges President Obama not to sacrifice malpractice victims

President Obama should not make innocent Americans injured by cost-cutting hospitals and negligent doctors a political sacrifice in his quest for health care reform, said Consumer Watchdog in advance of the President's health care speech tonight.

BMP8B plays a key role in regulating thermogenesis in brown adipose tissue

Bone morphogenetic protein 8B (BMP8B) plays a key role in regulating thermogenesis in brown adipose tissue, according to the findings of a research work published in Cell, the journal with the most impact on the field of biomedicine and molecular biology.

Global Fund releases mid-year results for HIV, TB, malaria

The Global Fund to Fight AIDS, Tuberculosis and Malaria announced mid-year results for HIV and TB treatment as well as for insecticide-treated net distribution, Sify News reports.

BRIC ministers reach agreement on promoting global food security

Brazil, Russia, India and China, collectively known as BRIC, have reached an agreement to promote global food security, the Moscow Times reports (Anishyuk, 3/29).

Read more News

› Verified 5 days ago


Internal Medicine Doctors in Lancaster, PA

Kaci Elizabeth Christian, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2112 Harrisburg Pike Ste 202, Lancaster, PA 17601
Phone: 717-869-4600    Fax: 717-544-3501
Nancy L Adamopoulos, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 555 N Duke St, Lancaster, PA 17602
Phone: 717-544-8144    
John B Fileta, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1254 Lititz Pike, Lancaster, PA 17601
Phone: 717-397-4724    
Charles R Rost, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 2112 Harrisburg Pike, Suite 200, Lancaster, PA 17601
Phone: 717-544-3059    Fax: 717-544-3638
Dr. Paul David Allegretti, D.O.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2112 Harrisburg Pike, Suite 202, Lancaster, PA 17601
Phone: 717-544-3500    Fax: 717-544-3501
Elyse Goveia, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 555 N Duke St, Lancaster, PA 17602
Phone: 717-544-4940    

Find & Compare Providers Near You: Find and compare doctors, nursing homes, hospitals, and other health care providers in your area that accept Medicare. Get information like: Find a doctor or clinician that accepts Medicare near you.

Doctors and clinicians: Doctors and clinicians include doctors, clinicians and groups who are qualified to practice in many specialties. Each specialty focuses on certain parts of the body, periods of life, conditions, or primary care. The doctors, clinicians, and groups listed here typically work in an office or clinic setting. Also those who currently accept Medicare are included.

Hospitals: Find information about Medicare-certified hospitals and long-term care hospitals in your area, including Veterans Administration medical centers and military hospitals, across the country. Long-term care hospitals serve critically ill and medically complex patients who require extended hospital care.

Data provided: Information on www.medicareusa.org is built using open data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA).

© 2024 MedicareUsa. All rights reserved. Maintained by the Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services.