Diane Treadwell-Deering, MD
NPI 1093895336 · Child & Adolescent Psychiatry Physician · Wilmington, DE
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Treadwell-Deering, MD is a Child & Adolescent Psychiatry Physician provider in Wilmington, DE (NPI 1093895336).
Provider details
- NPI number
- 1093895336
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G0214 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-17
- Last updated
- 2017-08-22
Frequently asked questions
- What is Diane Treadwell-Deering's NPI number?
- Diane Treadwell-Deering's National Provider Identifier (NPI) is 1093895336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Treadwell-Deering's specialty?
- Diane Treadwell-Deering is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Diane Treadwell-Deering located?
- Diane Treadwell-Deering's practice location on file with NPPES is 1600 Rockland Rd, Wilmington, DE 19803-3607.
- What is Diane Treadwell-Deering's phone number?
- The practice phone number listed in the NPPES registry for Diane Treadwell-Deering is (302) 651-4200.
- Does Diane Treadwell-Deering accept Medicare?
- Diane Treadwell-Deering is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Treadwell-Deering's NPI active?
- Yes — Diane Treadwell-Deering's NPI (1093895336) is active in the NPPES registry as of the last update on 2017-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.