Ronald P Markos, MD - Medicare Gastroenterology in Sellersville, PA

Ronald P Markos, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Sellersville, Pennsylvania. He went to Hahnemann University College Of Medicine and graduated in 1988 and has 36 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 817 Lawn Ave, Sellersville, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (215) 257-5071.

Ronald P Markos is licensed to practice in Pennsylvania (license number MD041987L) 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 1851399786.

Contact Information

Ronald P Markos, MD
817 Lawn Ave,
Sellersville, PA 18960-1549
(215) 257-5071
(215) 257-1801

Map and Direction




Physician's Profile

Full NameRonald P Markos
GenderMale
SpecialityGastroenterology
Experience36 Years
Location817 Lawn Ave, Sellersville, 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:
  • Ronald P Markos attended and graduated from Hahnemann University College Of Medicine in 1988
  NPI Data:
  • NPI Number: 1851399786
  • Provider Enumeration Date: 07/13/2005
  • Last Update Date: 04/27/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 5193625051
  • Enrollment ID: I20100910000140

Medical Identifiers

Medical identifiers for Ronald P Markos such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851399786NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology MD041987L (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Grand View HospitalSellersville, PAHospital
St Lukes Quakertown HospitalQuakertown, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regional Gastroenterology Associates Of Lancaster, Ltd.4688575434239

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. Ronald P Markos 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
Entity NameGi Health Professionals, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982603155
PECOS PAC ID: 3476537721
Enrollment ID: O20040615001193

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. Ronald P Markos 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
Ronald P Markos, MD
817 Lawn Ave,
Sellersville, PA 18960-1549

Ph: (215) 257-5071
Ronald P Markos, MD
817 Lawn Ave,
Sellersville, PA 18960-1549

Ph: (215) 257-5071

Reviews and Comments


Internal Medicine Doctors in Sellersville, PA

Joseph Doyle Walton, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 670 Lawn Ave, Suite 3a, Sellersville, PA 18960
Phone: 215-257-9500    Fax: 215-257-3578
Lorraine C Snyder Dougherty, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 915 Lawn Ave, Suite 202, Sellersville, PA 18960
Phone: 215-453-3300    Fax: 215-453-3306
Dr. James Louis Spears, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 915 Lawn Avenue, Suite 202, Sellersville, PA 18960
Phone: 215-453-3300    Fax: 215-453-3306
Dr. Kalpana Vuppali, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 700 Lawn Ave, Sellersville, PA 18960
Phone: 215-453-4139    Fax: 215-453-4991
David Anthony Travis, DO
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 670 Lawn Ave, Suite 3a, Sellersville, PA 18960
Phone: 215-257-9500    Fax: 215-257-3578
Dr. Keith Richard Kearney, DO
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1107 Bethlehem Pike, Sellersville, PA 18960
Phone: 215-257-3011    Fax: 215-257-3437
Sandra Harris-corrado, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 920 Lawn Ave, Ste 4, Sellersville, PA 18960
Phone: 215-257-5877    Fax: 215-257-6089

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.