Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey Morito Niizawa, M.D.

Gastroenterology Physician in Bullhead City, AZ · enumerated 2006.

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

National Provider Identifier

1922015445

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Registry record

Entity type Individual (Type 1)

Name Jeffrey Morito Niizawa

Credential M.D.

Sex Male

Practice address 2020 Silver Creek Rd, Suite 220, Bullhead City, AZ, 86442

Phone (928) 763-2500

Fax (928) 763-0027

Enumeration date Aug 1, 2006

Last updated in NPPES Nov 30, 2021

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 21760 (AZ) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
2Z7711	Other	AZ	HEALTH NET OF AZ
4402714	Other	AZ	AETNA
3520720	Other	AZ	CIGNA
148024	Medicaid	AZ	-

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 1922015445 active?

Yes, as of the latest NPPES snapshot, NPI 1922015445 is active (record last updated 2021-11-30).

How do I verify Jeffrey Niizawa's NPI record?

Cross-check NPI 1922015445 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-30.