Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Warren Obstetrics and Gynecology

Advanced Practice Midwife in Warren, PA · enumerated 2006 · authorized official J. John Maljovec, Owner / M.D..

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

National Provider Identifier

1861433245

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Warren Obstetrics and Gynecology

Practice address 2265 Market St, Suite B, Warren, PA, 16365

Phone (814) 723-2323

Fax (814) 723-2024

Enumeration date Jun 9, 2006

Last updated in NPPES Nov 7, 2008

Taxonomy & classification

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers Primary

Authorized official

Name J. John Maljovec

Title Owner / M.D.

Phone (814) 723-8101

Other identifiers

Identifier	Type	State	Issuer
888043	Other	PA	BLUE CROSS BLUE SHIELD

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-11-07. Verify at npiregistry.cms.hhs.gov.

Where is Warren Obstetrics and Gynecology located?

The practice location on file with NPPES is in Warren, PA.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-07.