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

Active since January 16, 2007PECOS Enrolled
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: August 09, 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. He is enrolled in Medicare PECOS.

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
Phone(302) 472-0381
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
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Other Identifiers 2

Medicaid1000024329DE
OtherPC002510PA · Prof Counselor License#

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Dewitt Lanyon Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

JOSHUA M ELLOW
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
New Castle County (302) 472-0381
KEFA M OBARA
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
New Castle County (302) 472-0381
JESSICA G WASHINGTON
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
New Castle County (302) 472-0381
AMANDA NICOLE PIZARRO
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
New Castle County (302) 472-0381
TANYEL JOHNSON
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
New Castle County (302) 472-0381
WANDA M WILSON B.S., CCDP
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
New Castle County (302) 472-0381
JANEEN S MURRAY
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
New Castle County (302) 472-0381
MR. REANARD ANTHONY BRITT
Counselor (Addiction (Substance Use Disorder))
2814 W 2ND ST
WILMINGTON, DE 19805
New Castle County (302) 472-0381

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 Mark Lanyon's NPI number?

The NPI number for Mark Lanyon is 1417008137. It was assigned to this individual provider in the NPPES registry on January 16, 2007.

Where is Mark Lanyon located?

Mark Lanyon practices at 2814 W 2nd St, Wilmington, DE 19805. The listed phone number is (302) 472-0381.

What is Mark Lanyon's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Is Mark Lanyon enrolled in Medicare?

Yes. Mark Lanyon is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mark Lanyon was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.