Deanna Duncan

Deanna Duncan is a School Psychologist provider (Psychologist) practicing in Ripon, CA, registered in the NPPES registry with NPI 1134935653 since 2024.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1134935653
Entity type	Individual (Type 1)
Name	Deanna Duncan
Sex	Female
Practice address	Ripon, CA, 95366
Phone	2095997145
Enumeration date	2024-12-09
Last updated in NPPES	2024-12-09

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
103TS0200X	School Psychologist	Primary	4515	CA

Copy-ready billing details

Provider: Deanna Duncan
NPI: 1134935653
Taxonomy: 103TS0200X (School Psychologist)
Address: Ripon, CA, 95366

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1659181428	Alma Aldama	Individual	School Counselor	Ripon, CA

Verify this record

Cross-check NPI 1134935653 against the authoritative CMS record: view Deanna Duncan 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 Deanna Duncan?

Deanna Duncan is registered in NPPES with the primary taxonomy of School Psychologist. 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 2024-12-09.