Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Barbara Diakos, MD

Obstetrics & Gynecology Physician in Saint John, IN · enumerated 2006.

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

National Provider Identifier

1912934423

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Barbara Diakos

Credential MD

Sex Female

Practice address 9660 Wicker Ave, Saint John, IN, 46373

Phone (219) 226-2236

Enumeration date Jun 28, 2006

Last updated in NPPES Jun 7, 2024

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 01082757A (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
300010757	Medicaid	IN	-
1620171	Other	IL	BLUE CROSS BLUE SHIELD
036086553	Medicaid	IL	-

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 Barbara Diakos practice?

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

What is the NPI number for Barbara Diakos?

The National Provider Identifier (NPI) for Barbara Diakos is 1912934423, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-07.