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Mark Landis, PSY.D.
NPI 1205265923 · Clinical Psychologist · Towson, MD
Mark Landis, PSY.D. is a Clinical Psychologist provider in Towson, MD (NPI 1205265923).
Provider details
- NPI number
- 1205265923
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 03548 (MD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(77/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
901 Dulaney Valley Rd
Suite 129
Towson, MD 21204-2600
Phone: (888) 818-6595
Fax: (410) 832-5783
Street-level locationGet directions
Mailing address
20 Research Pkwy
Old Saybrook, CT 06475-4214
Registry dates
- Enumerated
- 2013-11-04
- Last updated
- 2013-11-04
Frequently asked questions
- What is Mark Landis's NPI number?
- Mark Landis's National Provider Identifier (NPI) is 1205265923, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Landis's specialty?
- Mark Landis is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mark Landis located?
- Mark Landis's practice location on file with NPPES is 901 Dulaney Valley Rd, Towson, MD 21204-2600.
- What is Mark Landis's phone number?
- The practice phone number listed in the NPPES registry for Mark Landis is (888) 818-6595.
- Is Mark Landis's NPI active?
- Yes — Mark Landis's NPI (1205265923) is active in the NPPES registry as of the last update on 2013-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.