JUAN E GRUNWALD MD
NPI 1699705707
Ophthalmology - Retina Specialist in Philadelphia, PA
About Juan E Grunwald Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JUAN E GRUNWALD MD (NPI 1699705707) is an individual retina specialist in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD030915E) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Juan E Grunwald Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Juan Grunwald 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
- 3,488 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 7
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 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Juan Grunwald's NPI number?
The NPI number for Juan Grunwald is 1699705707. It was assigned to this individual provider in the NPPES registry on July 4, 2006.
Where is Juan Grunwald located?
Juan Grunwald practices at 3801 Filbert St, Philadelphia, PA 19104. The listed phone number is (215) 662-8100.
What is Juan Grunwald's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.
Is Juan Grunwald enrolled in Medicare?
Yes. Juan Grunwald is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Juan Grunwald's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Juan Grunwald 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 Juan Grunwald'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 Juan Grunwald was last updated on April 11, 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.