DR. ARI SAMUEL ROSENBACH MD
NPI 1225356181
Pediatrics in Mount Vernon, NY
About Dr. Ari Samuel Rosenbach Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ARI SAMUEL ROSENBACH MD (NPI 1225356181) is an individual pediatrics provider in Mount Vernon, New York, licensed in New York (274745) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Ari Samuel Rosenbach Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ari Rosenbach reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Greenwich, CT 06830
- Reassigned Medicare billing, Connecticut enrollment
- 268 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10550 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Ari Rosenbach's NPI number?
The NPI number for Ari Rosenbach is 1225356181. It was assigned to this individual provider in the NPPES registry on May 17, 2010.
Where is Ari Rosenbach located?
Ari Rosenbach practices at 107 W 4th St, Mount Vernon, NY 10550. The listed phone number is (914) 699-7200.
What is Ari Rosenbach's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Ari Rosenbach enrolled in Medicare?
Yes. Ari Rosenbach is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ari Rosenbach's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ari Rosenbach reassigns Medicare benefits to Greenwich Hospital (Greenwich, CT). 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 Ari Rosenbach's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ari Rosenbach accept?
Health plans from Anthem Blue Cross and Blue Shield list Ari Rosenbach as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Ari Rosenbach was last updated on May 12, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Dr. Ari Samuel Rosenbach, MD · NPI 1225356181
Pediatrics physician in Mount Vernon, New York. Individual provider, active in the CMS NPPES registry since May 17, 2010.
## Identity
- **NPI:** 1225356181 (Entity type: Individual)
- **Enumerated:** May 17, 2010
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 274745 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 107 W 4TH ST, Mount Vernon, NY 10550-4002
- **Phone:** (914) 699-7200 · **Fax:** (914) 699-0837
## 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:** Greenwich Hospital (NPI 1609846088, Greenwich, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 12, 2017
- **Other identifiers:** Other 274745 (NY); Medicaid 03835967 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1225356181) · Data from the CMS NPPES public registry.