Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Cristobal R. Rodriguez-Arrillaga, DMD

General Practice Dentistry in Guaynabo, PR · enumerated 2006.

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

National Provider Identifier

1427144559

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Registry record

Entity type Individual (Type 1)

Name Dr. Cristobal R. Rodriguez-Arrillaga

Credential DMD

Sex Male

Practice address 100 Ave San Patricio, Suite 208, Guaynabo, PR, 00968

Phone (787) 792-1700

Enumeration date Oct 5, 2006

Last updated in NPPES Jul 17, 2022

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 862 (PR) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

Is NPI 1427144559 active?

Yes, as of the latest NPPES snapshot, NPI 1427144559 is active (record last updated 2022-07-17).

How do I verify Cristobal Rodriguez-Arrillaga's NPI record?

Cross-check NPI 1427144559 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Lourdes D'Acosta General Practice Dentistry · Guaynabo, PR NPI 1043306293 Sixto Pacheco Optometrist · Guaynabo, PR NPI 1457491003 Yarielis Robles Clinical Psychologist · Guaynabo, PR NPI 1104400233

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-17.