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MARK DOUGLAS LANDIS PSY.D.
NPI 1205265923
Psychologist - Clinical in Towson, MD

Active since November 04, 2013
901 DULANEY VALLEY RD, SUITE 129, TOWSON, MD 21204(888) 818-6595(410) 832-5783 Get Directions Write a Review

NPPES record last updated: November 4, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mark Douglas Landis Psy.d. NPPES

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

MARK DOUGLAS LANDIS PSY.D. (NPI 1205265923) is an individual clinical provider in Towson, Maryland, licensed in Maryland (03548) and active in the NPI registry since November 2013.

NPPES Registry Identity

NPI1205265923
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameMARK DOUGLAS LANDISCredential: PSY.D.
Location Address901 DULANEY VALLEY RD, SUITE 129Towson, MD 21204-2600
Mailing Address20 Research PkwyOld Saybrook, CT 06475-4214 · (800) 370-3651 · Fax (877) 515-7147
Phone(888) 818-6595
Fax(410) 832-5783
Sole ProprietorNo
Enumeration DateNovember 4, 2013
✔ NPI 1205265923 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in MD · 03548
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
901 DULANEY VALLEY RD, Towson, MD 21204
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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.

DAVID KAUFMAN JR.
Psychiatry & Neurology (Psychiatry)
901 DULANEY VALLEY RD, SUITE 129
TOWSON, MD 21204
Baltimore County (410) 832-2729
SCARLETT KAREN JETT PSYD
Psychologist (Clinical)
901 DULANEY VALLEY RD, SUITE 129
TOWSON, MD 21204
Baltimore County (410) 832-2729
RICHARD E LAYTON MD PA
Legal Medicine
901 DULANEY VALLEY RD, DULANEY CENTER 2 SUITE101
TOWSON, MD 21204
Baltimore County (410) 337-2707
SANDRA LEE MASON LCSW-C
Social Worker
901 DULANEY VALLEY RD, SUITE 129
TOWSON, MD 21204
Baltimore County (410) 832-2729
CHESAPEAKE UROLOGY ASSOCIATES, LLC
Urology
901 DULANEY VALLEY RD
TOWSON, MD 21204
Baltimore County (410) 757-0422
SHERI B STERN CRNP
Nurse Practitioner (Psychiatric/Mental Health)
901 DULANEY VALLEY RD, SUITE 129
TOWSON, MD 21204
Baltimore County (410) 832-2729
MARY R SPETH PH.D
Psychologist
901 DULANEY VALLEY RD, STE 129
TOWSON, MD 21204
Baltimore County (410) 832-2729
WILLIAM E MANSBACH PH.D
Psychologist
901 DULANEY VALLEY RD, STE 129
TOWSON, MD 21204
Baltimore County (410) 832-2729

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 Landis's NPI number?

The NPI number for Mark Landis is 1205265923. It was assigned to this individual provider in the NPPES registry on November 4, 2013.

Where is Mark Landis located?

Mark Landis practices at 901 Dulaney Valley Rd Suite 129, Towson, MD 21204. The listed phone number is (888) 818-6595.

What is Mark Landis's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Mark Landis was last updated on November 4, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.