Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Grand Lake Regional Cardiology Services LLC

Q: What is the NPI number for Grand Lake Regional Cardiology Services LLC?

The NPI for Grand Lake Regional Cardiology Services LLC is 1811996861, a Type 2 (organization) record in the CMS NPPES registry.

Interventional Cardiology Physician in Grove, OK · enumerated 2005 · authorized official Paul Callicoat, Physician Manager.

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

National Provider Identifier

1811996861

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Registry record

Entity type Organization (Type 2)

Legal business name Grand Lake Regional Cardiology Services LLC

Practice address 1001 E 18th St, Grove, OK, 74344

Phone (918) 786-1070

Fax (918) 786-7699

Enumeration date Jul 20, 2005

Last updated in NPPES Jul 21, 2022

Taxonomy & classification

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Paul Callicoat

Title Physician Manager

Phone (918) 786-7667

Other identifiers

Identifier	Type	State	Issuer
200046050A	Medicaid	OK	-

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

Who is the authorized official for Grand Lake Regional Cardiology Services LLC?

NPPES lists Paul Callicoat (Physician Manager) as the authorized official for this organization.

What is the NPI number for Grand Lake Regional Cardiology Services LLC?

The NPI for Grand Lake Regional Cardiology Services LLC is 1811996861, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Grand Lake Imaging PC Diagnostic Radiology Physician · Grove, OK NPI 1184684011 Integris Grove Hospital General Acute Care Hospital · Grove, OK NPI 1467473579 Samuel Ratermann Family Medicine Physician · Grove, OK NPI 1831394071 Diagnostic Laboratory of Oklahoma LLC Clinical Medical Laboratory · Grove, OK NPI 1396928461 Kevin Yunt Diagnostic Radiology Physician · Grove, OK NPI 1982869806 Grove General Hospital Anesthesiology Physician · Grove, OK NPI 1467692145 Anesthesia Associates of Grand Lake Anesthesiology Physician · Grove, OK NPI 1841525193 Marcia Tynon Registered Dietitian · Grove, OK NPI 1821395666

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.