Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Dyanne Simpson, DO

Psychiatry Physician in Wilmington, DE · enumerated 2007 · practices at Connections Community Support Programs, Inc..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1033248422

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Registry record

Entity type Individual (Type 1)

Name Dr. Dyanne Simpson

Credential DO

Sex Female

Practice address 500 W 10th Street, Wilmington, DE, 19801

Phone (302) 230-9154

Fax (302) 691-1100

Enumeration date Mar 3, 2007

Last updated in NPPES Nov 21, 2011

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License C20009830 (DE) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License H63772 (MD) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License C2-0009830 (DE) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
027355400	Medicaid	MD	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Dyanne Simpson?

Dyanne Simpson is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Troy Thompson Psychiatry Physician · Wilmington, DE NPI 1043259609 Katherine Clendening Clinical Social Worker · Wilmington, DE NPI 1225102486 Tiffany Milam Counselor · Wilmington, DE NPI 1497950547 Lamont Baker Addiction (Substance Use Disorder) Counselor · Wilmington, DE NPI 1760791784 Connections Community Support Programs, Inc. Mental Health Clinic/Center (Including Community Mental Health Center) · Wilmington, DE NPI 1104173509 Nicole Phillips Addiction (Substance Use Disorder) Counselor · Wilmington, DE NPI 1265834683

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-21.