KARLA ALVAREZ MD
NPI 1366146086
Student in an Organized Health Care Education/Training Program in Staten Island, NY
About Karla Alvarez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KARLA ALVAREZ MD (NPI 1366146086) is an individual student in an organized health care education/training program in Staten Island, New York and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS, is affiliated with Long Island Jewish Medical Center, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Karla Alvarez Md 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.
Medicare Billing Reassignment
Medicare enrollment records show Karla Alvarez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Long Island Jewish Medical Center
Acute Care Hospitals · New Hyde Park, NYOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STATEN ISLAND, NY 10305
STATEN ISLAND, NY 10305
STATEN ISLAND, NY 10305
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 Karla Alvarez's NPI number?
The NPI number for Karla Alvarez is 1366146086. It was assigned to this individual provider in the NPPES registry on March 28, 2023.
Where is Karla Alvarez located?
Karla Alvarez practices at 475 Seaview Ave, Staten Island, NY 10305. The listed phone number is (718) 226-9000.
What is Karla Alvarez's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Karla Alvarez enrolled in Medicare?
Yes. Karla Alvarez 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.
Which organization bills Medicare for Karla Alvarez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karla Alvarez reassigns Medicare benefits to North Shore - Lij Medical PC (New Hyde Park, 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 Karla Alvarez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Karla Alvarez affiliated with any hospitals?
According to CMS data, Karla Alvarez is affiliated with Long Island Jewish Medical Center.
When was this NPI record last updated?
The NPPES record for Karla Alvarez was last updated on March 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.
# Karla Alvarez, MD · NPI 1366146086
Student in an Organized Health Care Education/Training Program provider in Staten Island, New York. Individual provider, active in the CMS NPPES registry since March 28, 2023.
## Identity
- **NPI:** 1366146086 (Entity type: Individual)
- **Enumerated:** March 28, 2023
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 475 SEAVIEW AVE, Staten Island, NY 10305-3436
- **Phone:** (718) 226-9000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** North Shore - Lij Medical PC (NPI 1790043479, New Hyde Park, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** March 28, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1366146086) · Data from the CMS NPPES public registry.