Dr Mark Warren Olson, MD - Medicare Family Medicine in Salem, OR

Dr Mark Warren Olson, MD is a medicare enrolled "Family Medicine" physician in Salem, Oregon. His current practice location is 1160 Wallace Rd Nw, Salem, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 361-5400.

Dr Mark Warren Olson is licensed to practice in Oregon (license number OR MD09591) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1043392012.

Contact Information

Dr Mark Warren Olson, MD
1160 Wallace Rd Nw,
Salem, OR 97304-3116
(503) 361-5400
(503) 361-5401

Map and Direction




Physician's Profile

Full NameDr Mark Warren Olson
GenderMale
SpecialityFamily Medicine
Location1160 Wallace Rd Nw, Salem, Oregon
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1043392012
  • Provider Enumeration Date: 10/19/2006
  • Last Update Date: 02/04/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 4486748746
  • Enrollment ID: I20070917000638

Medical Identifiers

Medical identifiers for Dr Mark Warren Olson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1043392012NPI-NPPES
23416-1MedicaidOR

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine OR MD09591 (Oregon)Primary

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 Warren Olson allows following entities to bill medicare on his behalf.
Entity NameKaiser Foundation Health Plan Of The Northwest
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184786527
PECOS PAC ID: 5799688230
Enrollment ID: O20040130000799

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 Warren Olson 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 Warren Olson, MD
8750 Oak Grove Rd,
Rickreall, OR 97371-9766

Ph: (503) 835-4001
Dr Mark Warren Olson, MD
1160 Wallace Rd Nw,
Salem, OR 97304-3116

Ph: (503) 361-5400

Reviews and Comments


Family Medicine Doctors in Salem, OR

Dr. Volodymyr Y. Dovhyy, MD
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Medicare: Medicare Enrolled
Practice Location: 1165 Union St Ne, Salem, OR 97301
Phone: 503-399-2424    
Dr. Bethany Wohletz, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1160 Wallace Rd Nw, Salem, OR 97304
Phone: 503-304-5716    Fax: 503-304-5719
Samantha Easterly, DO
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Medicare: Medicare Enrolled
Practice Location: 2020 Capitol St Ne, Salem, OR 97301
Phone: 503-399-2424    Fax: 503-375-7451
Rosamund M Irwin, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 2600 Center St Ne, Salem, OR 97301
Phone: 503-945-2800    
Jack Buchanan, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1002 Bellevue St Se, Salem Hospital Urgent Care Center, Salem, OR 97301
Phone: 503-561-5554    
Dr. Quincy Enyioma John, MD
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Medicare: Medicare Enrolled
Practice Location: 890 Oak St Se, Salem, OR 97301
Phone: 503-814-1879    
Shwetha R Gurram, M.D
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Medicare: Accepting Medicare Assignments
Practice Location: 966 12th St Se Ste 130, Salem, OR 97302
Phone: 503-814-4400    

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.