MARY C SULLIVAN NP
NPI 1073593752
Nurse Practitioner in Wilmington, DE
About Mary C Sullivan Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY C SULLIVAN NP (NPI 1073593752) is an individual nurse practitioner in Wilmington, Delaware, licensed in Delaware (L10030437) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS, is affiliated with University Of Md Shore Medical Ctr At Chestertown, and is a graduate of University Of Kentucky College Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Mary C Sullivan Np 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 Mary Sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Wilmington, DE 19806
- Reassigned Medicare billing, Delaware enrollment
- 2 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of MD Shore Medical Ctr At Chestertown
Acute Care Hospitals · Chestertown, MDUnion Hospital Of Cecil County
Acute Care Hospitals · Elkton, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19806 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WILMINGTON, DE 19806
WILMINGTON, DE 19806
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 Mary Sullivan's NPI number?
The NPI number for Mary Sullivan is 1073593752. It was assigned to this individual provider in the NPPES registry on January 19, 2006. The provider is also known as Mary C Steinhaus.
Where is Mary Sullivan located?
Mary Sullivan practices at 1508 Pennsylvania Ave Ste 2A, Wilmington, DE 19806. The listed phone number is (302) 468-4500.
What is Mary Sullivan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Mary Sullivan enrolled in Medicare?
Yes. Mary Sullivan 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 Mary Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Sullivan reassigns Medicare benefits to Bellevue Heart Group LLC (Wilmington, DE). 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 Mary Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Sullivan accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 1 other insurer list Mary Sullivan 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 Mary Sullivan affiliated with any hospitals?
According to CMS data, Mary Sullivan is affiliated with University Of MD Shore Medical Ctr At Chestertown and Union Hospital Of Cecil County.
When was this NPI record last updated?
The NPPES record for Mary Sullivan was last updated on September 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Mary C Sullivan, NP · NPI 1073593752
Nurse Practitioner physician in Wilmington, Delaware. Individual provider, active in the CMS NPPES registry since January 19, 2006.
## Identity
- **NPI:** 1073593752 (Entity type: Individual)
- **Enumerated:** January 19, 2006
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** L10030437 (Delaware)
- **Sole proprietor:** No
## Practice location
- **Address:** 1508 PENNSYLVANIA AVE STE 2A, Wilmington, DE 19806-4339
- **Phone:** (302) 468-4500
## 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:** Bellevue Heart Group LLC (NPI 1972906766, Wilmington, DE), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Kentucky College Of Medicine, class of 1999
## Record status
- **NPPES last updated:** September 1, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1073593752) · Data from the CMS NPPES public registry.