RON ELFENBEIN MD
NPI 1710934294
Emergency Medicine in Baltimore, MD
About Ron Elfenbein Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RON ELFENBEIN MD (NPI 1710934294) is an individual emergency medicine provider in Baltimore, Maryland, licensed in Maryland (D60177) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Jackson County Regional Health Center, and is a graduate of Other (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ron Elfenbein Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Ron Elfenbein reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Randallstown, MD 21133
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: Emergency Medicine Associates P.A., P.C.
- 729 clinicians in this Medicare group
Annapolis, MD 21401
- Reassigned Medicare billing, Maryland enrollment
- 60 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, Maryland enrollment
- 300 clinicians in this Medicare group
Salisbury, MD 21801
- Reassigned Medicare billing, Maryland enrollment
- 58 clinicians in this Medicare group
Maquoketa, IA 52060
- Reassigned Medicare billing, Iowa enrollment
- 65 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Jackson County Regional Health Center
Critical Access Hospitals · Maquoketa, IATidalhealth Peninsula Regional, Inc
Acute Care Hospitals · Salisbury, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21225 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.
BALTIMORE, MD 21225
BALTIMORE, MD 21225
BALTIMORE, MD 21225
BALTIMORE, MD 21225
BALTIMORE, MD 21225
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 Ron Elfenbein's NPI number?
The NPI number for Ron Elfenbein is 1710934294. It was assigned to this individual provider in the NPPES registry on May 28, 2006.
Where is Ron Elfenbein located?
Ron Elfenbein practices at 3001 S Hanover St, Baltimore, MD 21225. The listed phone number is (410) 350-3509.
What is Ron Elfenbein's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Ron Elfenbein enrolled in Medicare?
Yes. Ron Elfenbein is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ron Elfenbein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ron Elfenbein reassigns Medicare benefits to 5 organizations: Emergency Medicine Associates PA PC (Randallstown, MD), Doctors Emergency Service, PA (Annapolis, MD), Whc Physician Group LLC (Washington, DC), Emergency Service Associates PA (Salisbury, MD) and Jackson County Public Hospital (Maquoketa, IA). 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 Ron Elfenbein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ron Elfenbein accept?
Health plans from Wellmark Health Plan of Iowa, Inc. list Ron Elfenbein as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ron Elfenbein affiliated with any hospitals?
According to CMS data, Ron Elfenbein is affiliated with Jackson County Regional Health Center and Tidalhealth Peninsula Regional, Inc.
When was this NPI record last updated?
The NPPES record for Ron Elfenbein was last updated on March 4, 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.
# Ron Elfenbein, MD · NPI 1710934294
Emergency Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since May 28, 2006.
## Identity
- **NPI:** 1710934294 (Entity type: Individual)
- **Enumerated:** May 28, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D60177 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 3001 S HANOVER ST, Baltimore, MD 21225-1233
- **Phone:** (410) 350-3509 · **Fax:** (410) 350-3511
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Emergency Medicine Associates PA PC (NPI 1043175375, Randallstown, MD); Doctors Emergency Service, PA (NPI 1528171840, Annapolis, MD); Whc Physician Group LLC (NPI 1700154226, Washington, DC); Emergency Service Associates PA (NPI 1558340562, Salisbury, MD); Jackson County Public Hospital (NPI 1912960758, Maquoketa, IA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** March 4, 2010
- **Other identifiers:** Medicare UPIN H67080; Medicare PIN P00779709 (MD); Medicare PIN 147454Y1Z (MD); and 2 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1710934294) · Data from the CMS NPPES public registry.