Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Kobak Center for Gynecology, Inc.

Gynecology Physician in Valparaiso, IN · enumerated 2011 · authorized official William Kobak, President.

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

National Provider Identifier

1558654442

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Registry record

Entity type Organization (Type 2)

Legal business name Kobak Center for Gynecology, Inc.

Practice address 401 Wall St, Suite J, Valparaiso, IN, 46383

Phone (219) 531-7500

Enumeration date May 25, 2011

Last updated in NPPES Oct 15, 2013

Taxonomy & classification

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 01046101A (IN) Primary

Authorized official

Name William Kobak

Title President

Phone (219) 531-7500

Other identifiers

Identifier	Type	State	Issuer
000000719406	Other	IN	ANTHEM
201023270A	Medicaid	IN	-

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 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.

What type of organization is Kobak Center for Gynecology, Inc.?

Kobak Center for Gynecology, Inc. is registered in NPPES as a Gynecology Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-15.