Alonzo Eison IV

Alonzo Eison IV is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Clearlake Oaks, CA, registered in the NPPES registry with NPI 1811735277 since 2024.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1811735277
Entity type	Individual (Type 1)
Name	Alonzo Eison IV
Sex	Male
Practice address	Clearlake Oaks, CA, 95453
Phone	7079981800
Fax	7079980122
Enumeration date	2024-07-18
Last updated in NPPES	2024-07-18

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
101YA0400X	Addiction (Substance Use Disorder) Counselor	Primary	SUDRC18607	CA

Copy-ready billing details

Provider: Alonzo Eison
NPI: 1811735277
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: Clearlake Oaks, CA, 95453

Verify this record

Cross-check NPI 1811735277 against the authoritative CMS record: view Alonzo Eison IV 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 NPI 1811735277 active?

Yes — as of the latest NPPES snapshot, NPI 1811735277 is active (record last updated 2024-07-18).

How do I verify Alonzo Eison's NPI record?

Cross-check NPI 1811735277 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-07-18.