ROBERT GREENWALD MD
NPI 1790728285
Emergency Medicine in Baltimore, MD
About Robert Greenwald Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT GREENWALD MD (NPI 1790728285) is an individual emergency medicine provider in Baltimore, Maryland, licensed in Maryland (D54670) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Robert Greenwald Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Robert Greenwald reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21229
- Reassigned Medicare billing, Maryland enrollment
- 86 clinicians in this Medicare group
Baltimore, MD 21239
- Reassigned Medicare billing, Maryland enrollment
- 2,602 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, Maryland enrollment
- 300 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 21229 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 Robert Greenwald's NPI number?
The NPI number for Robert Greenwald is 1790728285. It was assigned to this individual provider in the NPPES registry on June 13, 2006.
Where is Robert Greenwald located?
Robert Greenwald practices at 900 Caton Ave, Baltimore, MD 21229. The listed phone number is (410) 368-2014.
What is Robert Greenwald's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Robert Greenwald enrolled in Medicare?
Yes. Robert Greenwald is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Robert Greenwald's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Greenwald reassigns Medicare benefits to 3 organizations: Cep America LLC (Baltimore, MD), Medstar Medical Group II LLC (Baltimore, MD) and Whc Physician Group LLC (Washington, DC). 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 Robert Greenwald'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 Robert Greenwald was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Robert Greenwald, MD · NPI 1790728285
Emergency Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 13, 2006.
## Identity
- **NPI:** 1790728285 (Entity type: Individual)
- **Enumerated:** June 13, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D54670 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 900 CATON AVE, Baltimore, MD 21229-5201
- **Phone:** (410) 368-2014 · **Fax:** (410) 368-2014
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Cep America LLC (NPI 1821434002, Baltimore, MD); Medstar Medical Group II LLC (NPI 1184046187, Baltimore, MD); Whc Physician Group LLC (NPI 1700154226, Washington, DC) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Other P00166690 (MD); Medicare ID-Type Unspecified 180MJ821 (MD); Other 60609101 (MD); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1790728285) · Data from the CMS NPPES public registry.