MATTHEW S PROJANSKY MD
NPI 1083734008
Emergency Medicine in Plainview, NY
About Matthew S Projansky Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATTHEW S PROJANSKY MD (NPI 1083734008) is an individual emergency medicine provider in Plainview, New York, licensed in New York (238519) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.
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 (PECOS)
Matthew S Projansky Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Matthew Projansky reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Port Jefferson, NY 11777
- Reassigned Medicare billing, New York enrollment
- Also billed through NPI 1467249334 (New York)
- 232 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 4
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11803 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PLAINVIEW, NY 11803
PLAINVIEW, NY 11803
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 Matthew Projansky's NPI number?
The NPI number for Matthew Projansky is 1083734008. It was assigned to this individual provider in the NPPES registry on March 31, 2007.
Where is Matthew Projansky located?
Matthew Projansky practices at 888 Old Country Rd, Plainview, NY 11803. The listed phone number is (516) 719-2335.
What is Matthew Projansky's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Matthew Projansky enrolled in Medicare?
Yes. Matthew Projansky is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Matthew Projansky's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Projansky reassigns Medicare benefits to 2 organizations: North Shore-Lij Medical PC (Great Neck, NY) and John T. Mather Memorial Hospital (Port Jefferson, 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 Matthew Projansky'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 Matthew Projansky was last updated on July 17, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Matthew S Projansky, MD · NPI 1083734008
Emergency Medicine physician in Plainview, New York. Individual provider, active in the CMS NPPES registry since March 31, 2007.
## Identity
- **NPI:** 1083734008 (Entity type: Individual)
- **Enumerated:** March 31, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 238519 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 888 OLD COUNTRY RD, Plainview, NY 11803-4914
- **Phone:** (516) 719-2335
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY); John T. Mather Memorial Hospital (NPI 1285920231, Port Jefferson, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 17, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1083734008) · Data from the CMS NPPES public registry.