AMY POLONSKY MD
NPI 1740229111
Emergency Medicine in Baltimore, MD
About Amy Polonsky Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMY POLONSKY MD (NPI 1740229111) is an individual emergency medicine provider in Baltimore, Maryland, licensed in Maryland (D55323) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Amy Polonsky Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Amy Polonsky reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Silver Spring, MD 20910
- Reassigned Medicare billing, District of Columbia enrollment
- 105 clinicians in this Medicare group
Rockville, MD 20850
- Reassigned Medicare billing, District of Columbia enrollment
- 251 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 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.
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 Amy Polonsky's NPI number?
The NPI number for Amy Polonsky is 1740229111. It was assigned to this individual provider in the NPPES registry on June 4, 2006.
Where is Amy Polonsky located?
Amy Polonsky practices at 900 Caton Ave, Baltimore, MD 21229. The listed phone number is (904) 805-1300.
What is Amy Polonsky's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Amy Polonsky enrolled in Medicare?
Yes. Amy Polonsky is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Amy Polonsky's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amy Polonsky reassigns Medicare benefits to 2 organizations: Cep America LLC (Silver Spring, MD) and Mep Health, LLC (Rockville, MD). 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 Amy Polonsky'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 Amy Polonsky was last updated on June 1, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Amy Polonsky, MD · NPI 1740229111
Emergency Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 4, 2006.
## Identity
- **NPI:** 1740229111 (Entity type: Individual)
- **Enumerated:** June 4, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D55323 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 900 CATON AVE, Baltimore, MD 21229-5201
- **Phone:** (904) 805-1300 · **Fax:** (904) 805-1302
## 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): Cep America LLC (NPI 1851286041, Silver Spring, MD); Mep Health, LLC (NPI 1164483558, Rockville, MD) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 1, 2010
- **Other identifiers:** Other 60609101 (MD); Medicaid 933001101 (MD); Medicare UPIN H45530 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1740229111) · Data from the CMS NPPES public registry.