DR. DEREK LAWRENCE ISENBERG MD
NPI 1184884181
Emergency Medicine in Philadelphia, PA
About Dr. Derek Lawrence Isenberg Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DEREK LAWRENCE ISENBERG MD (NPI 1184884181) is an individual emergency medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD439882) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Temple University Hospital, and is a graduate of Tulane University School Of Medicine (2005).
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 and accepts Medicare assignment
Dr. Derek Lawrence Isenberg 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
3Medicare enrollment records show Derek Isenberg reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19140
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,991 clinicians in this Medicare group
Philadelphia, PA 19107
- Reassigned Medicare billing, Pennsylvania enrollment
- 241 clinicians in this Medicare group
Drexel Hill, PA 19026
- Reassigned Medicare billing, Pennsylvania enrollment
- 654 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Temple University Hospital
Acute Care Hospitals · Philadelphia, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19140 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.
PHILADELPHIA, PA 19140
PHILADELPHIA, PA 19140
PHILADELPHIA, PA 19140
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 Derek Isenberg's NPI number?
The NPI number for Derek Isenberg is 1184884181. It was assigned to this individual provider in the NPPES registry on June 12, 2008.
Where is Derek Isenberg located?
Derek Isenberg practices at 3401 N Broad St, Philadelphia, PA 19140. The listed phone number is (215) 707-5030.
What is Derek Isenberg's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Derek Isenberg enrolled in Medicare?
Yes. Derek Isenberg 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 Derek Isenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Derek Isenberg reassigns Medicare benefits to 3 organizations: Temple Faculty Practice Plan, Inc (Philadelphia, PA), Jefferson Acute Care Physicians, PC (Philadelphia, PA) and Prospect Health Access Network, Inc. (Drexel Hill, PA). 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 Derek Isenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Derek Isenberg affiliated with any hospitals?
According to CMS data, Derek Isenberg is affiliated with Temple University Hospital.
When was this NPI record last updated?
The NPPES record for Derek Isenberg was last updated on April 24, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. Derek Lawrence Isenberg, MD · NPI 1184884181
Emergency Medicine physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 12, 2008.
## Identity
- **NPI:** 1184884181 (Entity type: Individual)
- **Enumerated:** June 12, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD439882 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3401 N BROAD ST, Philadelphia, PA 19140-5103
- **Phone:** (215) 707-5030 · **Fax:** (215) 707-3494
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Temple Faculty Practice Plan, Inc (NPI 1003398967, Philadelphia, PA); Jefferson Acute Care Physicians, PC (NPI 1730571324, Philadelphia, PA); Prospect Health Access Network, Inc. (NPI 1255786729, Drexel Hill, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tulane University School Of Medicine, class of 2005
## Record status
- **NPPES last updated:** April 24, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1184884181) · Data from the CMS NPPES public registry.