OSWALDO APOLINAR NICASTRO M.D.
NPI 1043336613
Family Medicine in Wilmington, DE
About Oswaldo Apolinar Nicastro M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OSWALDO APOLINAR NICASTRO M.D. (NPI 1043336613) is an individual family medicine provider in Wilmington, Delaware, licensed in Delaware (C1-0008737) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Tidalhealth Peninsula Regional, Inc, and is a graduate of Other (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Oswaldo Apolinar Nicastro M.d. 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 Oswaldo Nicastro reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Salisbury, MD 21801
- Reassigned Medicare billing, Maryland enrollment
- 81 clinicians in this Medicare group
Berlin, MD 21811
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: Tidalhealth Atlantic Inc
- 125 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 19
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Tidalhealth Peninsula Regional, Inc
Acute Care Hospitals · Salisbury, MDAtlantic General Hospital
Acute Care Hospitals · Berlin, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19810 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.
Referred Medical Equipment & Supplies CMS DME claims 12
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WILMINGTON, DE 19810
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 Oswaldo Nicastro's NPI number?
The NPI number for Oswaldo Nicastro is 1043336613. It was assigned to this individual provider in the NPPES registry on March 22, 2007.
Where is Oswaldo Nicastro located?
Oswaldo Nicastro practices at 2002 Foulk Rd Suite D, Wilmington, DE 19810. The listed phone number is (302) 334-0330.
What is Oswaldo Nicastro's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Oswaldo Nicastro enrolled in Medicare?
Yes. Oswaldo Nicastro 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 Oswaldo Nicastro's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Oswaldo Nicastro reassigns Medicare benefits to 2 organizations: Tidalhealth Primary Care, LLC (Salisbury, MD) and Atlantic General Hospital Corporation (Berlin, MD). 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 Oswaldo Nicastro's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Oswaldo Nicastro accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Highmark Blue Cross Blue Shield Delaware list Oswaldo Nicastro 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 Oswaldo Nicastro affiliated with any hospitals?
According to CMS data, Oswaldo Nicastro is affiliated with Tidalhealth Peninsula Regional, Inc and Atlantic General Hospital.
When was this NPI record last updated?
The NPPES record for Oswaldo Nicastro was last updated on July 22, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.