Mark S Harrington, MD - Medicare Internal Medicine in Gresham, OR

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Mark S Harrington, MD is a medicare enrolled "Hospitalist" physician in Gresham, Oregon. He went to Oregon Health Sciences University School Of Medicine and graduated in 1996 and has 28 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Legacy Clinics Llc and his current practice location is 24800 Se Stark St, Gresham, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 674-1580.

Mark S Harrington is licensed to practice in Oregon (license number 20725) 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 1659346252.

Contact Information

Mark S Harrington, MD
24800 Se Stark St,
Gresham, OR 97030-3378
(503) 674-1580
Not Available

Map and Direction




Physician's Profile

Full NameMark S Harrington
GenderMale
SpecialityInternal Medicine
Experience28 Years
Location24800 Se Stark St, Gresham, Oregon
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 S Harrington attended and graduated from Oregon Health Sciences University School Of Medicine in 1996
  NPI Data:
  • NPI Number: 1659346252
  • Provider Enumeration Date: 02/17/2006
  • Last Update Date: 04/22/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 5799777959
  • Enrollment ID: I20040330001645

Medical Identifiers

Medical identifiers for Mark S Harrington such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1659346252NPI-NPPES
134162MedicaidOR

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 20725 (Oregon)Secondary
208M00000XHospitalist 20725 (Oregon)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Legacy Mount Hood Medical CenterGresham, ORHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Legacy Clinics Llc0244144004633

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 S Harrington allows following entities to bill medicare on his behalf.
Entity NameLegacy Clinics Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902827272
PECOS PAC ID: 0244144004
Enrollment ID: O20031117000089
Entity NameSilverton Health
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669424354
PECOS PAC ID: 8921901877
Enrollment ID: O20040129000172

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 S Harrington 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 S Harrington, MD
24800 Se Stark St,
Gresham, OR 97030-3378

Ph: () -		Mark S Harrington, MD
24800 Se Stark St,
Gresham, OR 97030-3378

Ph: (503) 674-1580

Reviews and Comments


Hospitalist Doctors in Gresham, OR

Dr. Gordon Johnson, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 24988 Se Stark St, Gresham, OR 97030
Phone: 503-331-2376    
Dr. Deborah A Alexander, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 24800 Se Stark St, Gresham, OR 97030
Phone: 503-413-8407    Fax: 503-413-6951
Sandip Biswas,
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 24800 Se Stark St, Gresham, OR 97030
Phone: 503-674-1122    
Dr. Long Earon Thao, D.O
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 24800 Se Stark St, Gresham, OR 97030
Phone: 503-413-8407    

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.