JOHN FREDERICK DECARLI D.O.
NPI 1063404044
Internal Medicine in Wilmington, DE
About John Frederick Decarli D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN FREDERICK DECARLI D.O. (NPI 1063404044) is an individual internal medicine provider in Wilmington, Delaware, licensed in Delaware (C2-0002853) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Union Hospital Of Cecil County, and is a graduate of Philadelphia College Of Osteopathic Medicine (1985).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
John Frederick Decarli D.o. 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 John Decarli reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Wilmington, DE 19802
- Reassigned Medicare billing, Delaware enrollment
- 1,531 clinicians in this Medicare group
Elkton, MD 21921
- Reassigned Medicare billing, Maryland enrollment
- 512 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Union Hospital Of Cecil County
Acute Care Hospitals · Elkton, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19802 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 6
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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WILMINGTON, DE 19802
WILMINGTON, DE 19802
WILMINGTON, DE 19802
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 John Decarli's NPI number?
The NPI number for John Decarli is 1063404044. It was assigned to this individual provider in the NPPES registry on August 17, 2005.
Where is John Decarli located?
John Decarli practices at 700 W Lea Blvd Suite 306, Wilmington, DE 19802. The listed phone number is (302) 761-9620.
What is John Decarli's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Decarli enrolled in Medicare?
Yes. John Decarli 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 John Decarli's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Decarli reassigns Medicare benefits to 2 organizations: Christiana Care Health Services Inc (Wilmington, DE) and Union Hospital Of Cecil County, Inc. (Elkton, 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 John Decarli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Decarli accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next list John Decarli 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 John Decarli affiliated with any hospitals?
According to CMS data, John Decarli is affiliated with Union Hospital Of Cecil County.
When was this NPI record last updated?
The NPPES record for John Decarli was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# John Frederick Decarli, D.O. · NPI 1063404044
Internal Medicine physician in Wilmington, Delaware. Individual provider, active in the CMS NPPES registry since August 17, 2005.
## Identity
- **NPI:** 1063404044 (Entity type: Individual)
- **Enumerated:** August 17, 2005
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** C2-0002853 (Delaware)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 700 W LEA BLVD, SUITE 306, Wilmington, DE 19802-2500
- **Phone:** (302) 761-9620
## 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): Christiana Care Health Services Inc (NPI 1659578425, Wilmington, DE); Union Hospital Of Cecil County, Inc. (NPI 1407607450, Elkton, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Philadelphia College Of Osteopathic Medicine, class of 1985
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN E21828 (DE); Medicaid 0000022903 (DE); Medicare ID-Type Unspecified 424813 (DE)
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Source: [NPI Profile](https://npiprofile.com/npi/1063404044) · Data from the CMS NPPES public registry.