Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kenneth Sowinski, MD

Family Medicine Physician in Winchester, IN · enumerated 2005.

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

National Provider Identifier

1811990393

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Registry record

Entity type Individual (Type 1)

Name Kenneth Sowinski

Credential MD

Sex Male

Practice address 409 E Greenville Ave, Winchester, IN, 47394

Phone (765) 584-0480

Fax (765) 584-0470

Enumeration date May 27, 2005

Last updated in NPPES Oct 16, 2014

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 01044373A (IN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
000000224496	Other	IN	BC/BS
200045780	Medicaid	IN	-
0189120	Medicaid	OH	-

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

Where does Kenneth Sowinski practice?

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

What is the NPI number for Kenneth Sowinski?

The National Provider Identifier (NPI) for Kenneth Sowinski is 1811990393, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-16.