Diana Letwinsky, SLP
NPI 1659860914 · Speech-Language Pathologist · California, MD
Diana Letwinsky, SLP is a Speech-Language Pathologist provider in California, MD (NPI 1659860914).
Provider details
- NPI number
- 1659860914
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- SLP
- Sex
- Female
- Sole proprietor
- No
- License
- 06507 (MD)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-05-02
- Last updated
- 2018-05-02
Frequently asked questions
- What is Diana Letwinsky's NPI number?
- Diana Letwinsky's National Provider Identifier (NPI) is 1659860914, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Letwinsky's specialty?
- Diana Letwinsky is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Diana Letwinsky located?
- Diana Letwinsky's practice location on file with NPPES is 22593 Three Notch Rd, California, MD 20619-3054.
- What is Diana Letwinsky's phone number?
- The practice phone number listed in the NPPES registry for Diana Letwinsky is (301) 862-2505.
- Is Diana Letwinsky's NPI active?
- Yes — Diana Letwinsky's NPI (1659860914) is active in the NPPES registry as of the last update on 2018-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.