Diane Michele Postell, LCSW, CADC
Individual provider Active NPI Marriage & Family Therapist · Wilmington, DE
NPI 1205912839 · NPPES record last updated Sep 11, 2025
Key facts
- NPI
- 1205912839
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Marriage & Family Therapist 106H00000X
- Practice address
- 3618 Silverside Rd
Wilmington, DE 19810-5190 - Phone
- (302) 547-5505
- NPI assigned
- Oct 27, 2006
- Sex
- Female
- Sole proprietor
- Yes
Medicare participation
- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
- Medicare enrollment (NPD)
- No
- HHS exclusion list flag
- The National Provider Directory flags this NPI as appearing on an HHS exclusion list.
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| Q10000521 | DE | MD | Clinical Social Worker |
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | Q10000521 | DE | |
| Marriage & Family Therapist | 106H00000X | Yes |
Addresses
Primary practice location
3618 Silverside Rd
Wilmington, DE 19810-5190
Mailing address
2314 Cherry LN
Wilmington, DE 19810-4002
Phone (302) 547-5505
Other providers in Wilmington, DE
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- Hagop Poshoghlian
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- Posterity Men'S Health, P.C.
- James L Poston
- Molly Potter
- Jennifer Poulsen
- Nina Powell-Hamilton
All providers in Wilmington, DE · Marriage & Family Therapist in Delaware
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Sep 11, 2025. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.