DIANE TREADWELL-DEERING MD
NPI 1093895336
Psychiatry & Neurology - Child & Adolescent Psychiatry in Wilmington, DE
About Diane Treadwell-deering Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DIANE TREADWELL-DEERING MD (NPI 1093895336) is an individual child & adolescent psychiatry provider in Wilmington, Delaware, licensed in Texas (G0214) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Diane Treadwell-deering Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Diane Treadwell-deering reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Texas Childrens Physician Group
- 2,498 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 Diane Treadwell-deering's NPI number?
The NPI number for Diane Treadwell-deering is 1093895336. It was assigned to this individual provider in the NPPES registry on October 17, 2006.
Where is Diane Treadwell-deering located?
Diane Treadwell-deering practices at 1600 Rockland Rd, Wilmington, DE 19803. The listed phone number is (302) 651-4200.
What is Diane Treadwell-deering's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is Diane Treadwell-deering enrolled in Medicare?
Yes. Diane Treadwell-deering is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Diane Treadwell-deering's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diane Treadwell-deering reassigns Medicare benefits to Texas Children's Physician Group (Houston, TX). 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 Diane Treadwell-deering's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Diane Treadwell-deering accept?
Health plans from Cigna Healthcare and Moda Health Plan, Inc. list Diane Treadwell-deering 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 Diane Treadwell-deering was last updated on August 22, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Diane Treadwell-Deering, MD · NPI 1093895336
Child & Adolescent Psychiatry physician in Wilmington, Delaware. Individual provider, active in the CMS NPPES registry since October 17, 2006.
## Identity
- **NPI:** 1093895336 (Entity type: Individual)
- **Enumerated:** October 17, 2006
- **Primary specialty:** Psychiatry & Neurology - Child & Adolescent Psychiatry · taxonomy 2084P0804X
- **State license:** G0214 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 ROCKLAND RD, Wilmington, DE 19803-3607
- **Phone:** (302) 651-4200
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Texas Children's Physician Group (NPI 1861675506, Houston, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 22, 2017
- **Other identifiers:** Medicaid 138930611 (TX); Medicare UPIN E02242; Medicare PIN 80119G (TX); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1093895336) · Data from the CMS NPPES public registry.