Dr Mark Thomas Day, DO - Medicare Internal Medicine in Lebanon, OR

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Dr Mark Thomas Day, DO is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Lebanon, Oregon. He went to Des Moines University Of Osteopathic Medicine And Health Sciences and graduated in 2017 and has 9 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Legacy Clinics Llc, Legacy Mount Hood Medical Center, Legacy Emanuel Hospital And Health Center, Legacy Salmon Creek Hospital and his current practice location is 525 N Santiam Hwy, Lebanon, Oregon. You can reach out to his office (for appointments etc.) via phone at (541) 258-2101.

Dr Mark Thomas Day is licensed to practice in Oregon (license number DO197880) 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 1225492796.

Contact Information

Dr Mark Thomas Day, DO
525 N Santiam Hwy,
Lebanon, OR 97355-4363
(541) 258-2101
Not Available

Map and Direction




Physician's Profile

Full NameDr Mark Thomas Day
GenderMale
SpecialityInternal Medicine
Experience9 Years
Location525 N Santiam Hwy, Lebanon, 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:
  • Dr Mark Thomas Day attended and graduated from Des Moines University Of Osteopathic Medicine And Health Sciences in 2017
  NPI Data:
  • NPI Number: 1225492796
  • Provider Enumeration Date: 04/11/2016
  • Last Update Date: 02/28/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2466722897
  • Enrollment ID: I20211203001985

Medical Identifiers

Medical identifiers for Dr Mark Thomas Day such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225492796NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 182616 (Oregon)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
207RC0000XInternal Medicine - Cardiovascular Disease DO197880 (Oregon)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Legacy Mount Hood Medical CenterGresham, ORHospital
Legacy Emanuel Medical CenterPortland, ORHospital
Legacy Good Samaritan Medical CenterPortland, ORHospital
Legacy Salmon Creek Medical CenterVancouver, WAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Legacy Clinics Llc0244144004635
Legacy Mount Hood Medical Center317351599644
Legacy Emanuel Hospital And Health Center4587573639194
Legacy Salmon Creek Hospital0446295711253

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. Dr Mark Thomas Day 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 NameLegacy Good Samaritan Hospital And Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780608216
PECOS PAC ID: 0547179939
Enrollment ID: O20031125000416
Entity NameLegacy Emanuel Hospital & Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831112358
PECOS PAC ID: 4587573639
Enrollment ID: O20040127001204
Entity NameLegacy Meridian Park Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184647620
PECOS PAC ID: 5092609842
Enrollment ID: O20040211001181
Entity NameLegacy Mount Hood Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386919132
PECOS PAC ID: 3173515996
Enrollment ID: O20040401000550
Entity NameSamaritan Pacific Health Services Inc
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1801847066
PECOS PAC ID: 2466353529
Enrollment ID: O20061104000163

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. Dr Mark Thomas Day 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
Dr Mark Thomas Day, DO
Po Box 1193,
Corvallis, OR 97339-1193

Ph: (541) 768-4906		Dr Mark Thomas Day, DO
525 N Santiam Hwy,
Lebanon, OR 97355-4363

Ph: (541) 258-2101

Reviews and Comments


Internal Medicine Doctors in Lebanon, OR

Dr. Robert D. Wimmer, M.D.
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 525 N Santiam Hwy, Lebanon, OR 97355
Phone: 541-451-6427    Fax: 541-451-7520
Dr. Jourdan Leigh Hull, D.O.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 525 N Santiam Hwy, Lebanon, OR 97355
Phone: 541-451-6479    Fax: 541-451-7085
Dr. Sedrick A. Salisbury, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 325 Park St, Lebanon, OR 97355
Phone: 541-451-7200    
Dr. Raymond Anthony Simon Ii, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 100 Mullins Dr Ste C1, Lebanon, OR 97355
Phone: 541-451-7450    
Richard Hindmarsh, M.D.
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 100 Mullins Dr Ste C1, Lebanon, OR 97355
Phone: 541-451-7450    Fax: 541-451-7454
Carly Ann Mayumi Crider, DO
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 400 N Santiam Hwy, Lebanon, OR 97355
Phone: 541-451-6413    

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.