Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leonard L Griffiths III, MD

Anesthesiology Physician in Denver, CO · enumerated 2005.

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

National Provider Identifier

1982680393

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Registry record

Entity type Individual (Type 1)

Name Leonard L Griffiths III

Credential MD

Sex Male

Practice address 455 Sherman, Suite 510, Denver, CO, 80203

Phone (303) 336-8304

Fax (303) 780-0787

Enumeration date Dec 16, 2005

Last updated in NPPES Nov 25, 2008

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 17393 (CO) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
100425120A	Medicaid	KS	-
051271701	Medicaid	TX	-
84113438513	Medicaid	NE	-
376452	Medicaid	AZ	-
L4886	Medicaid	NM	-
01173939	Medicaid	CO	-
101822100	Medicaid	WY	-
3506685	Medicaid	MT	-

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

Where does Leonard Griffiths practice?

The practice location on file with NPPES is in Denver, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Leonard Griffiths?

The National Provider Identifier (NPI) for Leonard Griffiths is 1982680393, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-25.