1. Home
  2. Directory
  3. New York
  4. New York New York
  5. Nurse Practitioner
  6. NPI Profile

KATHRYN ELIZABETH MESSENGER NP
NPI 1104334408
Nurse Practitioner - Acute Care in New York, NY

Active since January 21, 2018PECOS Enrolled
1 GUSTAVE L LEVY PL # 1079, NEW YORK, NY 10029(212) 241-6021 Get Directions Write a Review

NPPES record last updated: November 5, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 5, 2025, Jul 24, 2024, Jan 21, 2018 (3 updates tracked since 2018).

About Kathryn Elizabeth Messenger Np NPPES

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

KATHRYN ELIZABETH MESSENGER NP (NPI 1104334408) is an individual acute care provider in New York, New York, licensed in New York (F431167-1) and active in the NPI registry since January 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1104334408
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameKATHRYN ELIZABETH MESSENGERCredential: NP
Location Address1 GUSTAVE L LEVY PL # 1079New York, NY 10029-6504
Mailing Address1 Gustave L Levy Pl # 1079New York, NY 10029-6504
Phone(212) 241-6021
Sole ProprietorNo
Enumeration DateJanuary 21, 2018
Last NPPES UpdateNovember 5, 20253 updates tracked since enumeration
NPPES CertifiedNovember 5, 2025
✔ NPI 1104334408 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in NY · F431167-1
1 GUSTAVE L LEVY PL # 1079, New York, NY 10029
Open in Google Maps ↗

Other Names 1

Former Name (1)Kathryn Rice

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kathryn Elizabeth Messenger Np 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 Kathryn Messenger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Icahn School Of Medicine At Mount Sinai
8.8 mi
Hematology & Oncology
1 GUSTAVE L LEVY PL
New York, NY 10029
  • Reassigned Medicare billing, New York enrollment
  • 275 clinicians in this Medicare group
NPI 1750649612 (212) 241-6756

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 10029 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
$102.04 typical visit price
range $65.69 – $198.19
Typical copayment $25.51 (range $16.42 – $49.54)
Most-billed visit code 99203
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SIRISH DHARMAPURI MD
Internal Medicine (Medical Oncology)
1 GUSTAVE L LEVY PL # 1079
NEW YORK, NY 10029
New York County (212) 241-4705

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 Kathryn Messenger's NPI number?

The NPI number for Kathryn Messenger is 1104334408. It was assigned to this individual provider in the NPPES registry on January 21, 2018. The provider is also known as Kathryn Rice.

Where is Kathryn Messenger located?

Kathryn Messenger practices at 1 Gustave L Levy Pl # 1079, New York, NY 10029. The listed phone number is (212) 241-6021.

What is Kathryn Messenger's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Kathryn Messenger enrolled in Medicare?

Yes. Kathryn Messenger is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kathryn Messenger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Messenger reassigns Medicare benefits to Icahn School Of Medicine At Mount Sinai (New York, NY). 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 Kathryn Messenger'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 Kathryn Messenger was last updated on November 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.