STUART B HIMMELSTEIN M.D.
NPI 1669441598
Internal Medicine in Delray Beach, FL
About Stuart B Himmelstein M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STUART B HIMMELSTEIN M.D. (NPI 1669441598) is an individual internal medicine provider in Delray Beach, Florida, licensed in Florida (ME 59597) and active in the NPI registry since March 2006. 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)
Stuart B Himmelstein M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Stuart Himmelstein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Delray Beach, FL 33446
- Reassigned Medicare billing, Florida enrollment
- 4 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 33484 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.
Reported Quality Measures
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.
DELRAY BEACH, FL 33484
DELRAY BEACH, FL 33484
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 Stuart Himmelstein's NPI number?
The NPI number for Stuart Himmelstein is 1669441598. It was assigned to this individual provider in the NPPES registry on March 14, 2006.
Where is Stuart Himmelstein located?
Stuart Himmelstein practices at 5258 Linton Blvd Suite 206, Delray Beach, FL 33484. The listed phone number is (561) 495-9292.
What is Stuart Himmelstein's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Stuart Himmelstein enrolled in Medicare?
Yes. Stuart Himmelstein is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Stuart Himmelstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stuart Himmelstein reassigns Medicare benefits to Quality Medical Association Of West Delray Inc (Delray Beach, FL). 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 Stuart Himmelstein'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 Stuart Himmelstein was last updated on December 1, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.