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

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

Map and Direction

Physician's Profile

Full Name	Mark H Johnston
Gender	Male
Speciality	Gastroenterology
Experience	39 Years
Location	2112 Harrisburg Pike, Lancaster, Pennsylvania
Accepts Medicare Assignments	Yes. 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.

Identifier	Type	State	Issuer
1003898131	NPI	-	NPPES
093677KKU	Other	PA	MEDICARE
P01832235	Other	PA	RR MEDICARE
1012082120002	Medicaid	PA
1012082120004	Medicaid	PA
1012082120005	Medicaid	PA

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RG0100X	Internal Medicine - Gastroenterology	MD425522 (Pennsylvania)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Lancaster General Hospital	Lancaster, PA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Regional Gastroenterology Associates Of Lancaster, Ltd.	4688575434	241

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 Name	Regional Gastroenterology Associates Of Lancaster, Ltd.
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1154422806 PECOS PAC ID: 4688575434 Enrollment ID: O20040115000777

Entity Name	Lancaster General Hospital
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1487904769 PECOS PAC ID: 1254240039 Enrollment ID: O20121114000177

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 Address	Practice 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

Reviews and Comments

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

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