NPI Portal NPI Lookup & Verification

Dr. Gerald Alan Harper, D.D.S.

Dr. Gerald Alan Harper is a Oral and Maxillofacial Surgery (Dentist) provider (Dentist) practicing in Eugene, OR, registered in the NPPES registry with NPI 1437157377 since 2005. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1437157377
Entity type Individual (Type 1)
Name Dr. Gerald Alan Harper
Credential D.D.S.
Sex Male
Practice address Eugene, OR, 97408
Phone 5417264690
Fax 5417417230
Enumeration date 2005-07-13
Last updated in NPPES 2014-10-09

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
1223S0112X Oral and Maxillofacial Surgery (Dentist) Primary D5382 OR

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

Other identifiers

Identifier Type State Issuer
018622 Medicaid OR
Copy-ready billing details
Provider: Gerald Harper, D.D.S.
NPI: 1437157377
Taxonomy: 1223S0112X (Oral and Maxillofacial Surgery (Dentist))
Address: Eugene, OR, 97408

Other providers at this practice address

NPI Name Type Specialty Location
1902844293 Willamette Community Health Solutions Organization Durable Medical Equipment & Medical Supplies Eugene, OR
1629147715 Willamette Community Health Solutions Organization Diabetes Educator Registered Nurse Eugene, OR
1811055437 Doctors Emergency Room Corp PC Organization Emergency Medicine Physician Eugene, OR
1396871828 Diane Andrews Individual Clinical Social Worker Eugene, OR
1770619207 Penny Mcavoy Individual Clinical Social Worker Eugene, OR
1801923990 Jill Wolf Individual Counseling Psychologist Eugene, OR
1962534529 Barbara Kloos Individual Clinical Social Worker Eugene, OR
1568666212 Jacquelyn Corey Individual Registered Nurse Eugene, OR

Verify this record

Cross-check NPI 1437157377 against the authoritative CMS record: view Dr. Gerald Alan Harper 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 Gerald Harper?
Gerald Harper is registered in NPPES with the primary taxonomy of Oral and Maxillofacial Surgery (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 2014-10-09.