Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Tri State Anesthesia Associates Plc

Anesthesiology Physician in Bullhead City, AZ · enumerated 2006 · authorized official Herman Ward, Group President.

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

National Provider Identifier

1053359430

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Registry record

Entity type Organization (Type 2)

Legal business name Tri State Anesthesia Associates Plc

Practice address 2735 Silver Creek Rd, Bullhead City, AZ, 86442

Phone (928) 763-2273

Enumeration date Jun 4, 2006

Last updated in NPPES Sep 27, 2012

Taxonomy & classification

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians Primary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Herman Ward

Title Group President

Phone (928) 763-2273

Other identifiers

Identifier	Type	State	Issuer
100504306	Medicaid	NV	-
100504306	Medicaid	AZ	-
XGG007530	Medicaid	CA	-

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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Tri State Anesthesia Associates Plc?

Tri State Anesthesia Associates Plc is registered in NPPES as a Anesthesiology Physician (its primary provider taxonomy).

Providers at this address

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Barry Latimer Certified Registered Nurse Anesthetist · Bullhead City, AZ NPI 1740286475 John Davis Emergency Medicine Physician · Bullhead City, AZ NPI 1093796104 Dalene Perdue Certified Registered Nurse Anesthetist · Bullhead City, AZ NPI 1356321590 Ammar Kafa Family Medicine Physician · Bullhead City, AZ NPI 1770553737 Bullhead City Hospital Corporation General Acute Care Hospital · Bullhead City, AZ NPI 1255302766 Michael Merchent, D.O., Ltd Surgery Physician · Bullhead City, AZ NPI 1780656017 Melinda Hayes Anesthesiology Physician · Bullhead City, AZ NPI 1366416083 Silver Creek Mri LLC Magnetic Resonance Imaging (MRI) Clinic/Center · Bullhead City, AZ NPI 1477528479

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-27.