KATELIN PETRIN CPNP
NPI 1013388016
Nurse Practitioner - Pediatrics in Wauwatosa, WI

Q: What is Katelin Petrin's NPI number?

The NPI number for Katelin Petrin is 1013388016. It was assigned to this individual provider in the NPPES registry on October 15, 2015. The provider is also known as Katelin Larson.

Q: What is Katelin Petrin's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Q: When was this NPI record last updated?

The NPPES record for Katelin Petrin was last updated on April 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 15, 2015

800 N MAYFAIR RD STE 200, WAUWATOSA, WI 53226(414) 262-8835 Get Directions Write a Review

NPPES record last updated: April 24, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 24, 2026, Aug 15, 2019, Aug 30, 2018 (3 updates tracked since 2018).

On this page

About Katelin Petrin Cpnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATELIN PETRIN CPNP (NPI 1013388016) is an individual pediatrics provider in Wauwatosa, Wisconsin, licensed in Wisconsin (16840-33) and active in the NPI registry since October 2015. She maintains a secondary practice location in Olympia.

NPPES Registry Identity

NPI1013388016

Entity TypeIndividualFemale

Primary Taxonomy363LP0200X

Provider Legal NameKATELIN PETRINCredential: CPNP

Location Address800 N MAYFAIR RD STE 200Wauwatosa, WI 53226-6300

Mailing Address800 N Mayfair Rd Ste 200Wauwatosa, WI 53226-6300 · (414) 262-8835

Phone(414) 262-8835

Sole ProprietorNo

Enumeration DateOctober 15, 2015

Last NPPES UpdateApril 24, 20263 updates tracked since enumeration

NPPES CertifiedApril 24, 2026

✔ NPI 1013388016 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0200X

License✔ Licensed in WI · 16840-33

800 N MAYFAIR RD STE 200, Wauwatosa, WI 53226

Open in Google Maps ↗

Other Names 1

Former Name (1)Katelin Larson

Secondary Practice Location 1

Location 13434 12th Ave NEOlympia, WA 98506 · Phone (360) 413-8470 · Fax (360) 413-8490

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katelin Petrin's NPI number?

The NPI number for Katelin Petrin is 1013388016. It was assigned to this individual provider in the NPPES registry on October 15, 2015. The provider is also known as Katelin Larson.

Where is Katelin Petrin located?

Katelin Petrin practices at 800 N Mayfair Rd Ste 200, Wauwatosa, WI 53226. The listed phone number is (414) 262-8835.

What is Katelin Petrin's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

What insurance does Katelin Petrin accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Katelin Petrin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Katelin Petrin was last updated on April 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.