Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Holly A Ullman Herlache, NP, MSN

Family Nurse Practitioner in Sturgeon Bay, WI · enumerated 2006.

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

National Provider Identifier

1336158781

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Registry record

Entity type Individual (Type 1)

Name Holly A Ullman Herlache

Credential NP, MSN

Sex Female

Practice address 323 S 18th Ave, Sturgeon Bay, WI, 54235

Phone (920) 743-5566

Enumeration date Aug 5, 2006

Last updated in NPPES Nov 25, 2019

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2634-33 (WI) 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

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

Is NPI 1336158781 active?

Yes, as of the latest NPPES snapshot, NPI 1336158781 is active (record last updated 2019-11-25).

How do I verify Holly Ullman Herlache's NPI record?

Cross-check NPI 1336158781 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Ronald Pluszczynski Obstetrics & Gynecology Physician · Sturgeon Bay, WI NPI 1952303919 Brett Young Orthopaedic Surgery Physician · Sturgeon Bay, WI NPI 1770578189 James Heise Internal Medicine Physician · Sturgeon Bay, WI NPI 1316934060 Kristina Koyen Athletic Trainer · Sturgeon Bay, WI NPI 1013905975 Callie Krauel Clinical Social Worker · Sturgeon Bay, WI NPI 1174507982 Barbara Johnson-Giese Clinical Social Worker · Sturgeon Bay, WI NPI 1861469793 Jeffrey Thompson Emergency Medicine Physician · Sturgeon Bay, WI NPI 1457317430 Door County Emergency Physicians, LLC Emergency Medicine Physician · Sturgeon Bay, WI NPI 1174571376

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-25.