Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

On Call Services Inc

Q: What type of organization is On Call Services Inc?

On Call Services Inc is registered in NPPES as a Cardiovascular Disease Physician (its primary provider taxonomy).

Cardiovascular Disease Physician in Harlingen, TX · enumerated 2007 · authorized official Hugo Blake, President.

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

National Provider Identifier

1720203532

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Registry record

Entity type Organization (Type 2)

Legal business name On Call Services Inc

Practice address 2310 N Ed Carey Dr, Suite 1a, Harlingen, TX, 78550

Phone (956) 428-5522

Enumeration date Apr 16, 2007

Last updated in NPPES May 19, 2008

Taxonomy & classification

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Hugo Blake

Title President

Phone (956) 425-9302

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 On Call Services Inc?

On Call Services Inc is registered in NPPES as a Cardiovascular Disease Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-19.