Diana Mayer, LGMFT
NPI 1639439524 · Marriage & Family Therapist · Gaithersburg, MD
Diana Mayer, LGMFT is a Marriage & Family Therapist provider in Gaithersburg, MD (NPI 1639439524).
Provider details
- NPI number
- 1639439524
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LGMFT
- Sex
- Female
- Sole proprietor
- No
- License
- LGM410 (MD)
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
14 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
- 2012-05-24
- Last updated
- 2012-05-24
Frequently asked questions
- What is Diana Mayer's NPI number?
- Diana Mayer's National Provider Identifier (NPI) is 1639439524, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Mayer's specialty?
- Diana Mayer is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Diana Mayer located?
- Diana Mayer's practice location on file with NPPES is 610 E Diamond Ave, Gaithersburg, MD 20877-5321.
- What is Diana Mayer's phone number?
- The practice phone number listed in the NPPES registry for Diana Mayer is (301) 840-3200.
- Is Diana Mayer's NPI active?
- Yes — Diana Mayer's NPI (1639439524) is active in the NPPES registry as of the last update on 2012-05-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.