Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John Whytosek D.M.D. P.C

Q: What type of organization is John Whytosek D.M.D. P.C?

John Whytosek D.M.D. P.C is registered in NPPES as a Periodontics (its primary provider taxonomy).

Periodontics in Broomall, PA · enumerated 2009 · authorized official Mariann Smith, Office Manager.

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

National Provider Identifier

1700119187

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Registry record

Entity type Organization (Type 2)

Legal business name John Whytosek D.M.D. P.C

Practice address 2004 Sproul Road, Suite 304, Broomall, PA, 19008

Phone (610) 353-8200

Fax (610) 356-0900

Enumeration date Sep 16, 2009

Last updated in NPPES Sep 16, 2009

Taxonomy & classification

1223P0300X Periodontics Dental Providers · License DS030593L (PA) Primary

Authorized official

Name Mariann Smith

Title Office Manager

Phone (610) 353-8200

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 John Whytosek D.M.D. P.C?

John Whytosek D.M.D. P.C is registered in NPPES as a Periodontics (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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-16.