NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Theodore Anthony Kostiuk IV, D.O.

Orthopaedic Surgery of the Spine Physician in Holland, MI · enumerated 2009.

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

National Provider Identifier

1952544876

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Theodore Anthony Kostiuk IV
Credential D.O.
Sex Male
Practice address 370 N 120th Ave Ste 20, Holland, MI, 49424
Fax (616) 396-5720
Enumeration date Apr 7, 2009
Last updated in NPPES Mar 4, 2019

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 02004389A (IN) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License 5101021584 (MI) 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

Other identifiers

Identifier Type State Issuer
201244390 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 the NPI number for Theodore Kostiuk?
The National Provider Identifier (NPI) for Theodore Kostiuk is 1952544876, a Type 1 (individual) record in the CMS NPPES registry.
Where does Theodore Kostiuk practice?
The practice location on file with NPPES is in Holland, MI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-04.