KATHERINE L MOSTRAG NP
NPI 1336543404
Nurse Practitioner - Acute Care in New York, NY
About Katherine L Mostrag Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE L MOSTRAG NP (NPI 1336543404) is an individual acute care provider in New York, New York, licensed in New York (432955) and active in the NPI registry since October 2014. She is enrolled in Medicare PECOS, is affiliated with Hunterdon Medical Center, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Katherine L Mostrag Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hunterdon Medical Center
Acute Care Hospitals · Flemington, NJUniversity Of Virginia Medical Center
Acute Care Hospitals · Charlottesville, VANovant Health Uva Health System Culpeper Med Cente
Acute Care Hospitals · Culpeper, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10016 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
NEW YORK, NY 10016
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 Mostrag's NPI number?
The NPI number for Katherine Mostrag is 1336543404. It was assigned to this individual provider in the NPPES registry on October 17, 2014.
Where is Katherine Mostrag located?
Katherine Mostrag practices at 550 1st Ave, New York, NY 10016. The listed phone number is (212) 263-7300.
What is Katherine Mostrag's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Katherine Mostrag enrolled in Medicare?
Yes. Katherine Mostrag is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Is Katherine Mostrag affiliated with any hospitals?
According to CMS data, Katherine Mostrag is affiliated with Hunterdon Medical Center, University Of Virginia Medical Center and Novant Health Uva Health System Culpeper Med Cente.
When was this NPI record last updated?
The NPPES record for Katherine Mostrag was last updated on April 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Katherine L Mostrag, NP · NPI 1336543404
Acute Care physician in New York, New York. Individual provider, active in the CMS NPPES registry since October 17, 2014.
## Identity
- **NPI:** 1336543404 (Entity type: Individual)
- **Enumerated:** October 17, 2014
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 432955 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 550 1ST AVE, New York, NY 10016-6402
- **Phone:** (212) 263-7300
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** April 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1336543404) · Data from the CMS NPPES public registry.