Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Leon D. Roisman, D.M.D., Inc.

Q: What type of organization is Leon D. Roisman, D.M.D., Inc.?

Leon D. Roisman, D.M.D., Inc. is registered in NPPES as a Prosthodontics (its primary provider taxonomy).

Prosthodontics in Pasadena, CA · enumerated 2007 · authorized official Leon Roisman, Chief Executive Officer.

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

National Provider Identifier

1912046871

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Leon D. Roisman, D.M.D., Inc.

Other name <Unavail>

Practice address 310 S Lake Ave, Lower Level, Pasadena, CA, 91101

Phone (626) 795-6855

Fax (626) 432-4260

Enumeration date Feb 6, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & classification

1223E0200X Endodontics Dental Providers Secondary

1223G0001X General Practice Dentistry Dental Providers Secondary

1223P0221X Pediatric Dentistry Dental Providers Secondary

1223P0300X Periodontics Dental Providers Secondary

1223P0700X Prosthodontics Dental Providers Primary

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers Secondary

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers Secondary

Authorized official

Name Leon Roisman

Title Chief Executive Officer

Phone (626) 432-4242

Other identifiers

Identifier	Type	State	Issuer
B19960-01	Other	CA	DENTICAL

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 type of organization is Leon D. Roisman, D.M.D., Inc.?

Leon D. Roisman, D.M.D., Inc. is registered in NPPES as a Prosthodontics (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.