Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Roelof Tikker, D.P.M.

Podiatrist in Saint Helena, CA · enumerated 2005.

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

National Provider Identifier

1558361014

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Registry record

Entity type Individual (Type 1)

Name Dr. Roelof Tikker

Credential D.P.M.

Sex Male

Practice address 6 Woodland Rd, Suite 104, Saint Helena, CA, 94574

Phone (707) 237-2673

Fax (916) 914-2157

Enumeration date Jul 27, 2005

Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License E882 (CA) Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Roelof Tikker?

Roelof Tikker is registered in NPPES with the primary taxonomy of Podiatrist. 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 2026-07-13.