DR. GRACE WENJUN GUO MD
NPI 1730271610
Radiology - Pediatric Radiology in Wilmington, DE
About Dr. Grace Wenjun Guo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GRACE WENJUN GUO MD (NPI 1730271610) is an individual pediatric radiology provider in Wilmington, Delaware, licensed in Delaware (C10006921) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 11
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
Dr. Grace Wenjun Guo 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 Reassignments
2Medicare enrollment records show Grace Guo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Wilmington, DE 19803
- Reassigned Medicare billing, Delaware and Florida enrollments
- Also billed through NPI 1265585806 (Florida)
- 526 clinicians in this Medicare group
Deptford, NJ 08096
- Reassigned Medicare billing, New Jersey enrollment
- Medicare enrollment name: Nemours New Jersey Physician Practice PC
- 183 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.
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.
WILMINGTON, DE 19803
WILMINGTON, DE 19803
WILMINGTON, DE 19803
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 Grace Guo's NPI number?
The NPI number for Grace Guo is 1730271610. It was assigned to this individual provider in the NPPES registry on September 29, 2006.
Where is Grace Guo located?
Grace Guo practices at 1600 Rockland Rd, Wilmington, DE 19803. The listed phone number is (302) 651-4000.
What is Grace Guo's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Pediatric Radiology, with taxonomy code 2085P0229X.
Is Grace Guo enrolled in Medicare?
Yes. Grace Guo 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 organizations bill Medicare for Grace Guo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grace Guo reassigns Medicare benefits to 2 organizations: The Nemours Foundation (Wilmington, DE) and Nemours New Jersey Physician Practice, P.C. (Deptford, NJ). 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 Grace Guo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grace Guo accept?
Health plans from Ambetter Health, Ambetter from Superior HealthPlan, Ambetter of Alabama, Cigna HealthCare of Florida, Inc. and Cigna Healthcare and 1 other insurer list Grace Guo 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 Grace Guo was last updated on February 4, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Grace Wenjun Guo, MD · NPI 1730271610
Pediatric Radiology physician in Wilmington, Delaware. Individual provider, active in the CMS NPPES registry since September 29, 2006.
## Identity
- **NPI:** 1730271610 (Entity type: Individual)
- **Enumerated:** September 29, 2006
- **Primary specialty:** Radiology - Pediatric Radiology · taxonomy 2085P0229X
- **State license:** C10006921 (Delaware)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 ROCKLAND RD, Wilmington, DE 19803-3607
- **Phone:** (302) 651-4000 · **Fax:** (302) 651-4945
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): The Nemours Foundation (NPI 1366594699, Wilmington, DE); Nemours New Jersey Physician Practice, P.C. (NPI 1265874713, Deptford, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1984
## Record status
- **NPPES last updated:** February 4, 2013
- **Other identifiers:** Medicaid Q06920 (SC); Medicaid 2644993 (NY); Medicaid 4025849 (MD); and 8 more
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Source: [NPI Profile](https://npiprofile.com/npi/1730271610) · Data from the CMS NPPES public registry.