Dr. Patrick Ryan Ferguson, DDS

Dr. Patrick Ryan Ferguson is a Dentist provider (Dentist) practicing in Tripler Amc, HI, registered in the NPPES registry with NPI 1891139473 since 2013. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1891139473
Entity type	Individual (Type 1)
Name	Dr. Patrick Ryan Ferguson
Credential	DDS
Sex	Male
Practice address	Tripler Amc, HI, 96859
Phone	8084335303
Fax	8084339194
Enumeration date	2013-04-25
Last updated in NPPES	2015-12-01

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
122300000X	Dentist	Primary	61875	CA

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Patrick Ferguson, DDS
NPI: 1891139473
Taxonomy: 122300000X (Dentist)
Address: Tripler Amc, HI, 96859

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1700888245	Franlils Tengasantos	Individual	General Practice Dentistry	Tripler Amc, HI
1790740322	John Etzenbach	Individual	Periodontics	Tripler Amc, HI
1184724734	Gregory Silver	Individual	General Practice Dentistry	Tripler Amc, HI
1497035802	Spence Gibbs	Individual	General Practice Dentistry	Tripler Amc, HI

Verify this record

Cross-check NPI 1891139473 against the authoritative CMS record: view Dr. Patrick Ryan Ferguson on the official NPPES registry .

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 or validate an NPI number.

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 Patrick Ferguson?

Patrick Ferguson is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2015-12-01.