ETHAN ALAN SMALL MD
NPI 1609902345
Anesthesiology in Rye Brook, NY
About Ethan Alan Small Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ETHAN ALAN SMALL MD (NPI 1609902345) is an individual anesthesiology provider in Rye Brook, New York, licensed in New York (256872-1) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with White Plains Hospital Center, and is a graduate of University Of Hawaii John A. Burns School Of Medicine (2004).
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 and accepts Medicare assignment
Ethan Alan Small 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 Reassignments
3Medicare enrollment records show Ethan Small reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rye Brook, NY 10573
- Reassigned Medicare billing, New York enrollment
- 470 clinicians in this Medicare group
Rye, NY 10580
- Reassigned Medicare billing, New York enrollment
- 25 clinicians in this Medicare group
Melville, NY 11747
- Reassigned Medicare billing, New York enrollment
- 508 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
White Plains Hospital Center
Acute Care Hospitals · White Plains, NYFrequently 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 Ethan Small's NPI number?
The NPI number for Ethan Small is 1609902345. It was assigned to this individual provider in the NPPES registry on February 26, 2007.
Where is Ethan Small located?
Ethan Small practices at 800 Westchester Avenue, Ste S-614 Westchester Anesthesiologists, Ppc, Rye Brook, NY 10573. The listed phone number is (914) 428-5454.
What is Ethan Small's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Ethan Small enrolled in Medicare?
Yes. Ethan Small 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 organizations bill Medicare for Ethan Small's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ethan Small reassigns Medicare benefits to 3 organizations: Westchester Medical Group, P.C. (Rye Brook, NY), The Rye Ambulatory Surgery Center, LLC (Rye, NY) and North American Partners In Anesthesia LLP (Melville, 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 Ethan Small's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ethan Small affiliated with any hospitals?
According to CMS data, Ethan Small is affiliated with White Plains Hospital Center.
When was this NPI record last updated?
The NPPES record for Ethan Small was last updated on December 26, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Ethan Alan Small, MD · NPI 1609902345
Anesthesiology physician in Rye Brook, New York. Individual provider, active in the CMS NPPES registry since February 26, 2007.
## Identity
- **NPI:** 1609902345 (Entity type: Individual)
- **Enumerated:** February 26, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 256872-1 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 800 WESTCHESTER AVENUE, STE S-614, WESTCHESTER ANESTHESIOLOGISTS, PPC, Rye Brook, NY 10573
- **Phone:** (914) 428-5454
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Westchester Medical Group, P.C. (NPI 1881653822, Rye Brook, NY); The Rye Ambulatory Surgery Center, LLC (NPI 1578892600, Rye, NY); North American Partners In Anesthesia LLP (NPI 1649264706, Melville, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Hawaii John A. Burns School Of Medicine, class of 2004
## Record status
- **NPPES last updated:** December 26, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1609902345) · Data from the CMS NPPES public registry.