DENNIS MICHAEL GUEST DO
NPI 1962452995
Emergency Medicine in Philadelphia, PA
About Dennis Michael Guest Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS MICHAEL GUEST DO (NPI 1962452995) is an individual emergency medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (OS004446L) and active in the NPI registry since May 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)
Dennis Michael Guest Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Dennis Guest reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Voorhees, NJ 08043
- Reassigned Medicare billing, New Jersey enrollment
- 332 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 19125 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 19125
PHILADELPHIA, PA 19125
PHILADELPHIA, PA 19125
PHILADELPHIA, PA 19125
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 Dennis Guest's NPI number?
The NPI number for Dennis Guest is 1962452995. It was assigned to this individual provider in the NPPES registry on May 11, 2006.
Where is Dennis Guest located?
Dennis Guest practices at 100 E Lehigh Ave, Philadelphia, PA 19125. The listed phone number is (215) 707-1656.
What is Dennis Guest's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Dennis Guest enrolled in Medicare?
Yes. Dennis Guest is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Dennis Guest's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Guest reassigns Medicare benefits to Emergency Physician Associates Of South Jersey P C (Voorhees, NJ). The 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 Dennis Guest'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 Dennis Guest was last updated on January 19, 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.