DR. STEPHEN ALLAN OBSTBAUM M.D.
NPI 1184628604
Ophthalmology in New York, NY
About Dr. Stephen Allan Obstbaum M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN ALLAN OBSTBAUM M.D. (NPI 1184628604) is an individual ophthalmology provider in New York, New York, licensed in New York (101642) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Stephen Allan Obstbaum M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Stephen Obstbaum 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10016 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 3
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 Stephen Obstbaum's NPI number?
The NPI number for Stephen Obstbaum is 1184628604. It was assigned to this individual provider in the NPPES registry on June 13, 2005.
Where is Stephen Obstbaum located?
Stephen Obstbaum practices at 115 E 39th St, New York, NY 10016. The listed phone number is (212) 687-4106.
What is Stephen Obstbaum's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Stephen Obstbaum enrolled in Medicare?
Yes. Stephen Obstbaum is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Stephen Obstbaum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Obstbaum 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 Stephen Obstbaum'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 Stephen Obstbaum was last updated on September 4, 2013. 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.