1. Home
  2. Directory
  3. New York
  4. Hawthorne
  5. Pediatrics
  6. NPI Profile

RACHEL SANTOS D.O.
NPI 1588198105
Pediatrics - Pediatric Hematology-Oncology in Hawthorne, NY

Active since April 20, 2017PECOS Enrolled
19 BRADHURST AVE STE 800S, HAWTHORNE, NY 10532(914) 614-4270 Get Directions Write a Review

NPPES record last updated: September 10, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 10, 2024, Jun 9, 2020, Apr 20, 2017 (3 updates tracked since 2017).

About Rachel Santos D.o. NPPES

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

RACHEL SANTOS D.O. (NPI 1588198105) is an individual pediatric hematology-oncology provider in Hawthorne, New York, licensed in New York (310845) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1588198105
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameRACHEL SANTOSCredential: D.O.
Location Address19 BRADHURST AVE STE 800SHawthorne, NY 10532-2140
Mailing Address19 Bradhurst Ave Ste 800sHawthorne, NY 10532-2140 · (914) 614-4270
Phone(914) 614-4270
Sole ProprietorNo
Enumeration DateApril 20, 2017
Last NPPES UpdateSeptember 10, 20243 updates tracked since enumeration
NPPES CertifiedSeptember 10, 2024
✔ NPI 1588198105 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in NY · 310845
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
19 BRADHURST AVE STE 800S, Hawthorne, NY 10532
Open in Google Maps ↗

Other Names 1

Former Name (1)Rachel Willimann Do

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rachel Santos D.o. 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 Rachel Santos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Boston Children's Health Physicians, LLP
0.9 mi
Pediatrics
19 SKYLINE DR OFC 1N-D06
Hawthorne, NY 10532
  • Reassigned Medicare billing, New York enrollment
  • 511 clinicians in this Medicare group
NPI 1467454967 (914) 594-2100

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

Other Providers at the Same Location NPPES 2

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

JENNIFER ANNE KRAJEWSKI M.D.
Pediatrics (Pediatric Hematology-Oncology)
19 BRADHURST AVE STE 800S
HAWTHORNE, NY 10532
Westchester County (914) 909-5361
DR. SAMUEL GRANT HILBERT MD
Pediatrics (Pediatric Hematology-Oncology)
19 BRADHURST AVE STE 800S
HAWTHORNE, NY 10532
Westchester County (914) 614-4270

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 Rachel Santos's NPI number?

The NPI number for Rachel Santos is 1588198105. It was assigned to this individual provider in the NPPES registry on April 20, 2017. The provider is also known as Rachel Willimann Do.

Where is Rachel Santos located?

Rachel Santos practices at 19 Bradhurst Ave Ste 800S, Hawthorne, NY 10532. The listed phone number is (914) 614-4270.

What is Rachel Santos's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Rachel Santos enrolled in Medicare?

Yes. Rachel Santos is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Rachel Santos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rachel Santos reassigns Medicare benefits to Boston Children's Health Physicians, LLP (Hawthorne, 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 Rachel Santos'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 Rachel Santos was last updated on September 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.