Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Integrative Emergency Services Physician Group-Houston Pllc

Emergency Medicine Physician in Pasadena, TX · enumerated 2019 · authorized official Nestor Zenarosa, Founder and Chief Medical Officer.

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

National Provider Identifier

1801458708

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Registry record

Entity type Organization (Type 2)

Legal business name Integrative Emergency Services Physician Group-Houston Pllc

Other name <Unavail>

Practice address 4500 E Sam Houston Pkwy S, Pasadena, TX, 77505

Phone (713) 948-7000

Enumeration date Jul 1, 2019

Last updated in NPPES Nov 14, 2024

Taxonomy & classification

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Nestor Zenarosa

Title Founder and Chief Medical Officer

Phone (469) 420-5527

Other identifiers

Identifier	Type	State	Issuer
137601425	Medicaid	TX	-

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 the NPI number for Integrative Emergency Services Physician Group-Houston Pllc?

The NPI for Integrative Emergency Services Physician Group-Houston Pllc is 1801458708, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Integrative Emergency Services Physician Group-Houston Pllc?

NPPES lists Nestor Zenarosa (Founder and Chief Medical Officer) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-14.