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DR. KATHERINE ANNE WRENN-MARESH MD
NPI 1861654261
Surgery in Gricignano Di Aversa, CE

Active since June 26, 2008PECOS Enrolled
US NAVAL HOSPITAL, VIA CONTRADA BOSCARIELLO, GRICIGNANO DI AVERSA, CE 80130(081) 811-6000 Get Directions Write a Review

NPPES record last updated: July 30, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 27, 2023, Oct 7, 2022, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

About Dr. Katherine Anne Wrenn-maresh Md NPPES

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

DR. KATHERINE ANNE WRENN-MARESH MD (NPI 1861654261) is an individual surgery provider in Gricignano Di Aversa, CE, licensed in California (A111393) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861654261
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameDR. KATHERINE ANNE WRENN-MARESHCredential: MD
Location AddressUS NAVAL HOSPITAL, VIA CONTRADA BOSCARIELLOGricignano Di Aversa, CE 80130
Mailing AddressPsc 808 Box 19Fpo, AE 09618-0001
Phone(081) 811-6000
Sole ProprietorNo
Enumeration DateJune 26, 2008
Last NPPES UpdateJuly 30, 20254 updates tracked since enumeration
NPPES CertifiedJuly 30, 2025
✔ NPI 1861654261 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · A111393
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
US NAVAL HOSPITAL, Gricignano Di Aversa, CE 80130
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Katherine Anne Wrenn-maresh Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Katherine Wrenn-maresh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Castle Medical Center
3,337 mi
Clinic/Center
30 AULIKE ST, SUITE 501
Kailua, HI 96734
  • Reassigned Medicare billing, Hawaii enrollment
  • 110 clinicians in this Medicare group
NPI 1710336011 (808) 263-5015

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80130 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$89.43 typical visit price
range $58.06 – $174.82
Typical copayment $22.35 (range $14.51 – $43.70)
Most-billed visit code 99203
Established Patient
$72.20 typical visit price
range $18.88 – $142.79
Typical copayment $18.05 (range $4.72 – $35.69)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Katherine Wrenn-maresh's NPI number?

The NPI number for Katherine Wrenn-maresh is 1861654261. It was assigned to this individual provider in the NPPES registry on June 26, 2008.

Where is Katherine Wrenn-maresh located?

Katherine Wrenn-maresh practices at Us Naval Hospital Via Contrada Boscariello, Gricignano Di Aversa, CE 80130. The listed phone number is (081) 811-6000.

What is Katherine Wrenn-maresh's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Katherine Wrenn-maresh enrolled in Medicare?

Yes. Katherine Wrenn-maresh is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Katherine Wrenn-maresh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Wrenn-maresh reassigns Medicare benefits to Castle Medical Center (Kailua, HI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katherine Wrenn-maresh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Katherine Wrenn-maresh was last updated on July 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.