DR. BRIAN S GREENBERG D.O.
NPI 1497954457
Emergency Medicine in Rochester, NY
About Dr. Brian S Greenberg D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRIAN S GREENBERG D.O. (NPI 1497954457) is an individual emergency medicine provider in Rochester, New York, licensed in New York (255957) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Brian S Greenberg D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Brian Greenberg reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rochester, NY 14621
- Reassigned Medicare billing, New York enrollment
- 2,285 clinicians in this Medicare group
Rochester, NY 14617
- Reassigned Medicare billing, New York enrollment
- 1,442 clinicians in this Medicare group
Newark, NY 14513
- Reassigned Medicare billing, New York enrollment
- 679 clinicians in this Medicare group
Canandaigua, NY 14424
- Reassigned Medicare billing, New York enrollment
- 347 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14621 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.
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 Brian Greenberg's NPI number?
The NPI number for Brian Greenberg is 1497954457. It was assigned to this individual provider in the NPPES registry on July 11, 2007.
Where is Brian Greenberg located?
Brian Greenberg practices at 1425 Portland Ave Emergency, Rochester, NY 14621. The listed phone number is (585) 922-4000.
What is Brian Greenberg's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Brian Greenberg enrolled in Medicare?
Yes. Brian Greenberg is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Brian Greenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Greenberg reassigns Medicare benefits to 4 organizations: Rochester General Hospital (Rochester, NY), The Unity Hospital Of Rochester (Rochester, NY), Newark Wayne Community Hospital (Newark, NY) and The Frederick Ferris Thompson Hospital (Canandaigua, 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 Brian Greenberg'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 Brian Greenberg was last updated on March 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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. Brian S Greenberg, D.O. · NPI 1497954457
Emergency Medicine physician in Rochester, New York. Individual provider, active in the CMS NPPES registry since July 11, 2007.
## Identity
- **NPI:** 1497954457 (Entity type: Individual)
- **Enumerated:** July 11, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 255957 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1425 PORTLAND AVE, EMERGENCY, Rochester, NY 14621-3001
- **Phone:** (585) 922-4000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Rochester General Hospital (NPI 1063531929, Rochester, NY); The Unity Hospital Of Rochester (NPI 1457395766, Rochester, NY); Newark Wayne Community Hospital (NPI 1346369212, Newark, NY); The Frederick Ferris Thompson Hospital (NPI 1194776351, Canandaigua, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 28, 2025
- **Other identifiers:** Medicaid 03230779 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1497954457) · Data from the CMS NPPES public registry.