NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Martin M. Klos, MD

Addiction Medicine (Anesthesiology) Physician in Springfield, OR · enumerated 2007.

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

National Provider Identifier

1861559627

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Registry record

Entity type Individual (Type 1)
Name Dr. Martin M. Klos
Credential MD
Sex Male
Practice address Springfield, OR, 97478
Phone (541) 746-4468
Fax (541) 746-4562
Enumeration date Jan 2, 2007
Last updated in NPPES Jan 29, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License MD18059 (OR) Secondary
207LA0401X Addiction Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License MD18059 (OR) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Martin Klos practice?
The practice location on file with NPPES is in Springfield, OR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Martin Klos?
The National Provider Identifier (NPI) for Martin Klos is 1861559627, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-29.