Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Clare Zak, NP

Pediatric Nurse Practitioner in Bowling Green, OH · enumerated 2016.

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

National Provider Identifier

1871946822

Verified

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Registry record

Entity type Individual (Type 1)

Name Mary Clare Zak

Credential NP

Sex Female

Practice address 970 W Wooster St, Bowling Green, OH, 43402

Phone (419) 352-6890

Fax (419) 353-2415

Enumeration date Jul 14, 2016

Last updated in NPPES Apr 11, 2018

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN.384323 (OH) Secondary

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN.CNP.019560 (OH) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
0180146	Medicaid	OH	-
APRN.CNP.019560	Other	OH	NURSE PRACTITIONER-OH BOARD OF NURSING
RN.384323	Other	OH	OHIO BOARD OF NURSING

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 Mary Clare Zak?

The National Provider Identifier (NPI) for Mary Clare Zak is 1871946822, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Clare Zak practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-11.