Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hospitalist Services of America

Q: What is the NPI number for Hospitalist Services of America?

The NPI for Hospitalist Services of America is 1821757360, a Type 2 (organization) record in the CMS NPPES registry.

Internal Medicine Physician in Saint Petersburg, FL · enumerated 2021 · authorized official Jared Pieniazek, President.

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

National Provider Identifier

1821757360

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Registry record

Entity type Organization (Type 2)

Legal business name Hospitalist Services of America

Practice address 4101 36th Ave N, Saint Petersburg, FL, 33713

Phone (727) 557-7297

Enumeration date Dec 13, 2021

Last updated in NPPES Dec 13, 2021

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Jared Pieniazek

Title President

Phone (727) 557-7297

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 Hospitalist Services of America?

The NPI for Hospitalist Services of America is 1821757360, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Hospitalist Services of America?

NPPES lists Jared Pieniazek (President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-13.