Merle Litowitz, PH.D., PLC
NPI 1649306978 · Clinical Psychologist · Vienna, VA
Merle Litowitz, PH.D., PLC is a Clinical Psychologist organization in Vienna, VA (NPI 1649306978).
Provider details
- NPI number
- 1649306978
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Merle Litowitz, Clinical Psychologist(703) 255-3400
- License
- 0810001645 (VA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Mailing address
Registry dates
- Enumerated
- 2007-02-23
- Last updated
- 2020-08-22
Frequently asked questions
- What is Merle Litowitz, PH.D., PLC's NPI number?
- Merle Litowitz, PH.D., PLC's National Provider Identifier (NPI) is 1649306978, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Merle Litowitz, PH.D., PLC?
- Merle Litowitz, PH.D., PLC is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Merle Litowitz, PH.D., PLC located?
- Merle Litowitz, PH.D., PLC's practice location on file with NPPES is 380 Maple Ave W, Vienna, VA 22180-5620.
- What is Merle Litowitz, PH.D., PLC's phone number?
- The practice phone number listed in the NPPES registry for Merle Litowitz, PH.D., PLC is (703) 255-3400.
- Who is the authorized official for Merle Litowitz, PH.D., PLC?
- The authorized official listed on Merle Litowitz, PH.D., PLC's NPPES record is Merle Litowitz, Clinical Psychologist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Merle Litowitz, PH.D., PLC's NPI active?
- Yes — Merle Litowitz, PH.D., PLC's NPI (1649306978) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.