ALANA SIEV
NPI 1811459639
Student in an Organized Health Care Education/Training Program in Bronx, NY
About Alana Siev NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALANA SIEV (NPI 1811459639) is an individual student in an organized health care education/training program in Bronx, New York and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alana Siev is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Alana Siev reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 428 clinicians in this Medicare group
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 259 clinicians in this Medicare group
New York, NY 10065
- Reassigned Medicare billing, New York enrollment
- 248 clinicians in this Medicare group
New York, NY 10065
- Reassigned Medicare billing, New York enrollment
- 315 clinicians in this Medicare group
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 514 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.
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.
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.
BRONX, NY 10467
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 Alana Siev's NPI number?
The NPI number for Alana Siev is 1811459639. It was assigned to this individual provider in the NPPES registry on April 1, 2019.
Where is Alana Siev located?
Alana Siev practices at 111 E 210th St, Bronx, NY 10467. The listed phone number is (866) 633-8255.
What is Alana Siev's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Alana Siev enrolled in Medicare?
Yes. Alana Siev is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alana Siev's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alana Siev reassigns Medicare benefits to 5 organizations: Memorial Hematology Lymphoma Group (New York, NY), Memorial Developmental Chemo Group (New York, NY), Mskcc Clinical Practice Plan (New York, NY), Memorial Medical Consultation Group (New York, NY) and Memorial Solid Tumor Group (New York, NY). Each 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 Alana Siev'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 Alana Siev was last updated on April 1, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Alana Siev · NPI 1811459639
Student in an Organized Health Care Education/Training Program provider in Bronx, New York. Individual provider, active in the CMS NPPES registry since April 1, 2019.
## Identity
- **NPI:** 1811459639 (Entity type: Individual)
- **Enumerated:** April 1, 2019
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** No
## Practice location
- **Address:** 111 E 210TH ST, Bronx, NY 10467-2401
- **Phone:** (866) 633-8255
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Memorial Hematology Lymphoma Group (NPI 1245945021, New York, NY); Memorial Developmental Chemo Group (NPI 1912978487, New York, NY); Mskcc Clinical Practice Plan (NPI 1588789341, New York, NY); Memorial Medical Consultation Group (NPI 1053382523, New York, NY); Memorial Solid Tumor Group (NPI 1699746172, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 1, 2019
---
Source: [NPI Profile](https://npiprofile.com/npi/1811459639) · Data from the CMS NPPES public registry.