Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Leonard Charles Glaser Jr., MD

Internal Medicine Physician in Naples, FL · enumerated 2006.

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

National Provider Identifier

1194752089

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Registry record

Entity type Individual (Type 1)

Name Dr. Leonard Charles Glaser Jr.

Credential MD

Sex Male

Practice address 8340 Collier Blvd Ste 405, Naples, FL, 34114

Phone (239) 348-4221

Enumeration date Jun 27, 2006

Last updated in NPPES Sep 15, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 022003 (CT) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License ME139291 (FL) 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
103666800	Medicaid	FL	-
1220037	Medicaid	CT	-
2V0711	Other	CT	HEALTH NET
4002857	Other	CT	AETNA
050632	Other	CT	CONNCARE
110217801	Other	CT	RR MEDICARE
HAP004	Other	CT	OXFORD

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Leonard Glaser?

Leonard Glaser is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-15.