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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark A Backus, M.D.

Internal Medicine Physician in Bend, OR · enumerated 2006 · practices at Cascade Internal Medicine Specialists LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1588693105

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark A Backus
Credential M.D.
Sex Male
Practice address 2239 Ne Doctors Dr Ste 200, Bend, OR, 97701
Phone (541) 318-0124
Fax (541) 318-0188
Enumeration date Jul 3, 2006
Last updated in NPPES Feb 20, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD22701 (OR) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
288094 Medicaid OR -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Mark Backus practice?
The practice location on file with NPPES is in Bend, OR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Backus?
The National Provider Identifier (NPI) for Mark Backus is 1588693105, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-20.