Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark O Herring, MD

Neurology Physician in Springfield, OR · enumerated 2006 · practices at Neurology Associates Eugene-Springfield PC.

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

National Provider Identifier

1689636284

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Registry record

Entity type Individual (Type 1)

Name Mark O Herring

Credential MD

Sex Male

Practice address 1 Hayden Bridge Way, Springfield, OR, 97477

Phone (541) 868-9430

Fax (541) 868-9450

Enumeration date Apr 6, 2006

Last updated in NPPES Apr 26, 2021

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD14992 (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
P00429062	Other	OR	RAILROAD MEDICARE
103051	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Mark Herring?

Mark Herring is registered in NPPES with the primary taxonomy of Neurology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-26.