DR. STEPHEN MICHAEL BLUMBERG M.D.
NPI 1396709440
Internal Medicine - Clinical Cardiac Electrophysiology in Dover, DE
About Dr. Stephen Michael Blumberg M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN MICHAEL BLUMBERG M.D. (NPI 1396709440) is an individual clinical cardiac electrophysiology provider in Dover, Delaware, licensed in New York (175193-1) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Stephen Michael Blumberg M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Stephen Blumberg reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dover, DE 19901
- Reassigned Medicare billing, Delaware enrollment
- Also billed through NPI 1417473935 (Delaware), NPI 1063938439 (Delaware)
- 202 clinicians in this Medicare group
Newark, DE 19718
- Reassigned Medicare billing, Delaware enrollment
- Medicare enrollment name: Christiana Care Health Services Inc
- Also billed through NPI 1245674993 (Delaware)
- 1,531 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 19901 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DOVER, DE 19901
DOVER, DE 19901
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 Stephen Blumberg's NPI number?
The NPI number for Stephen Blumberg is 1396709440. It was assigned to this individual provider in the NPPES registry on April 14, 2006.
Where is Stephen Blumberg located?
Stephen Blumberg practices at 1113 S State St Suite 100, Dover, DE 19901. The listed phone number is (302) 734-7676.
What is Stephen Blumberg's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.
Is Stephen Blumberg enrolled in Medicare?
Yes. Stephen Blumberg is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Stephen Blumberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Blumberg reassigns Medicare benefits to 2 organizations: Bayhealth Medical Center, Inc (Dover, DE) and Christiana Care Health System (Newark, DE). 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 Stephen Blumberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Blumberg accept?
Health plans from AmeriHealth Caritas Next list Stephen Blumberg 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.
When was this NPI record last updated?
The NPPES record for Stephen Blumberg was last updated on April 7, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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. Stephen Michael Blumberg, M.D. · NPI 1396709440
Clinical Cardiac Electrophysiology physician in Dover, Delaware. Individual provider, active in the CMS NPPES registry since April 14, 2006.
## Identity
- **NPI:** 1396709440 (Entity type: Individual)
- **Enumerated:** April 14, 2006
- **Primary specialty:** Internal Medicine - Clinical Cardiac Electrophysiology · taxonomy 207RC0001X
- **State license:** 175193-1 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1113 S STATE ST, SUITE 100, Dover, DE 19901-4112
- **Phone:** (302) 734-7676 · **Fax:** (302) 734-7615
## 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): Bayhealth Medical Center, Inc (NPI 1952996563, Dover, DE); Christiana Care Health System (NPI 1770615494, Newark, DE) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 7, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1396709440) · Data from the CMS NPPES public registry.