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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Allan Ramirez, M.D.

Neurology Physician in Roseburg, OR · enumerated 2008 · practices at Umpqua Neurology PC.

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

National Provider Identifier

1245400209

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Allan Ramirez
Credential M.D.
Sex Male
Practice address 1741 W. Harvard Ave, Roseburg, OR, 97471
Phone (541) 440-5320
Fax (541) 440-5322
Enumeration date Mar 6, 2008
Last updated in NPPES Sep 17, 2015

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 57.008415 (OH) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD28139 (OR) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD28193 (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
279201 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

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.
What specialty is Mark Ramirez?
Mark Ramirez 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-17.