Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Crystal Ilke Tuncay, DO

Internal Medicine Physician in Valparaiso, IN · enumerated 2005.

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

National Provider Identifier

1992790414

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Registry record

Entity type Individual (Type 1)

Name Crystal Ilke Tuncay

Credential DO

Sex Female

Practice address 1231 Cumberland Crossing Drive, Valparaiso, IN, 46383

Phone (219) 548-3843

Fax (219) 548-3256

Enumeration date Sep 12, 2005

Last updated in NPPES Sep 28, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 02003668A (IN) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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 the NPI number for Crystal Tuncay?

The National Provider Identifier (NPI) for Crystal Tuncay is 1992790414, a Type 1 (individual) record in the CMS NPPES registry.

Where does Crystal Tuncay practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-28.