DR. GREGORY G CASEY D.O.
NPI 1629205083
Emergency Medicine in Philadelphia, PA
About Dr. Gregory G Casey D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY G CASEY D.O. (NPI 1629205083) is an individual emergency medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (OT012963) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Gregory G Casey D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Gregory Casey reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19153
- Reassigned Medicare billing, Pennsylvania enrollment
- 646 clinicians in this Medicare group
Darby, PA 19023
- Reassigned Medicare billing, Pennsylvania enrollment
- 107 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 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Gregory Casey's NPI number?
The NPI number for Gregory Casey is 1629205083. It was assigned to this individual provider in the NPPES registry on June 12, 2009.
Where is Gregory Casey located?
Gregory Casey practices at 215 N. 15th St 2nd Floor, Room 2108, Philadelphia, PA 19102. The listed phone number is (215) 762-2365.
What is Gregory Casey's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Gregory Casey enrolled in Medicare?
Yes. Gregory Casey is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Gregory Casey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Casey reassigns Medicare benefits to 2 organizations: Trinity Health Mid-Atlantic Medical Group (Philadelphia, PA) and Cep America LLC (Darby, 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 Gregory Casey'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 Gregory Casey was last updated on June 12, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.