MARK DEWITT LANYON PHD
NPI 1417008137
Counselor - Addiction (Substance Use Disorder) in Wilmington, DE

Active since January 16, 2007
2814 W 2ND ST, WILMINGTON, DE 19805(302) 472-0381(302) 472-0392 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Mark Dewitt Lanyon Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK DEWITT LANYON PHD (NPI 1417008137) is an individual addiction (substance use disorder) provider in Wilmington, Delaware and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1417008137
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameMARK DEWITT LANYONCredential: PHD
Location Address2814 W 2ND STWilmington, DE 19805-1807
Mailing Address2814 W 2nd StWilmington, DE 19805-1807 · (302) 472-0381 · Fax (302) 472-0392
Fax(302) 472-0392
Sole ProprietorNo
Enumeration DateJanuary 16, 2007
Last NPPES UpdateSeptember 11, 2025
NPI 1417008137 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
Also ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X
2814 W 2ND ST, Wilmington, DE 19805

Other Identifiers 2

Medicaid1000024329DE
OtherPC002510PA · Prof Counselor License#

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1417008137, enumerated as an "individual" on January 16, 2007.

The provider is located at 2814 W 2ND ST WILMINGTON, DE 19805 and the phone number is (302) 472-0381.

Counselor with taxonomy code 101YA0400X and a focus in Addiction (Substance Use Disorder).

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.