Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Isaac Ray Dennis, D.O.

Hospitalist Physician in Tulsa, OK · enumerated 2013.

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

National Provider Identifier

1477999514

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Registry record

Entity type Individual (Type 1)

Name Isaac Ray Dennis

Credential D.O.

Sex Male

Practice address 10501 E 91st St, 2nd Floor, Tulsa, OK, 74133

Phone (918) 502-1900

Enumeration date May 16, 2013

Last updated in NPPES Jul 31, 2017

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 5548 (OK) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 5548 (OK) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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.

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Frequently asked questions

How do I verify Isaac Dennis's NPI record?

Cross-check NPI 1477999514 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1477999514 active?

Yes, as of the latest NPPES snapshot, NPI 1477999514 is active (record last updated 2017-07-31).

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Emergency Management Associates PC Emergency Medicine Physician · Tulsa, OK NPI 1750360061 Nathan Reusser Emergency Medicine Physician · Tulsa, OK NPI 1750360087 S Beeson Emergency Medicine Physician · Tulsa, OK NPI 1407835655 Matthew Warren Emergency Medicine Physician · Tulsa, OK NPI 1659351765 Greg Gray Emergency Medicine Physician · Tulsa, OK NPI 1588644660 Mini George Medical Physician Assistant · Tulsa, OK NPI 1447217583 Saint Francis Hospital South LLC General Acute Care Hospital · Tulsa, OK NPI 1376561944 Matthew Weller Certified Registered Nurse Anesthetist · Tulsa, OK NPI 1790876308

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-07-31.