JUSTINA LAURENCE RAY MD
NPI 1831726132
Internal Medicine - Nephrology in Philadelphia, PA
About Justina Laurence Ray Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JUSTINA LAURENCE RAY MD (NPI 1831726132) is an individual nephrology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD494400) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Other (2020).
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 and accepts Medicare assignment
Justina Laurence Ray 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 Reassignment
Medicare enrollment records show Justina Ray reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Philadelphia, PA 19104
- Reassigned Medicare billing, Pennsylvania enrollment
- Also billed through NPI 1629181912 (Pennsylvania)
- 752 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hospital Of Univ Of Pennsylvania
Acute Care Hospitals · Philadelphia, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19104 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 19104
PHILADELPHIA, PA 19104
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 Justina Ray's NPI number?
The NPI number for Justina Ray is 1831726132. It was assigned to this individual provider in the NPPES registry on March 25, 2020.
Where is Justina Ray located?
Justina Ray practices at 3400 Spruce St, Philadelphia, PA 19104. The listed phone number is (445) 273-2775.
What is Justina Ray's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Justina Ray enrolled in Medicare?
Yes. Justina Ray 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 organization bills Medicare for Justina Ray's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justina Ray reassigns Medicare benefits to University Of Penn - Medical Group (Philadelphia, PA). 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 Justina Ray's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Justina Ray accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Justina Ray 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 Justina Ray affiliated with any hospitals?
According to CMS data, Justina Ray is affiliated with Hospital Of Univ Of Pennsylvania.
When was this NPI record last updated?
The NPPES record for Justina Ray was last updated on May 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.
# Justina Laurence Ray, MD · NPI 1831726132
Nephrology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since March 25, 2020.
## Identity
- **NPI:** 1831726132 (Entity type: Individual)
- **Enumerated:** March 25, 2020
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** MD494400 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 SPRUCE ST, Philadelphia, PA 19104-4238
- **Phone:** (445) 273-2775
## 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:** University Of Penn - Medical Group (NPI 1053447151, Philadelphia, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** May 27, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1831726132) · Data from the CMS NPPES public registry.