IndividualActive
Mark De Guzman, LMSW
NPI 1588368435 · Clinical Social Worker · Brooklyn, NY
Mark De Guzman, LMSW is a Clinical Social Worker provider in Brooklyn, NY (NPI 1588368435).
Provider details
- NPI number
- 1588368435
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Male
- Sole proprietor
- No
- License
- 117433 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(59/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
348 13th St Ste 203
Brooklyn, NY 11215-6179
Phone: (718) 788-5101
Street-level locationGet directions
Mailing address
348 13th St Ste 203
Brooklyn, NY 11215-6179
Registry dates
- Enumerated
- 2023-03-27
- Last updated
- 2023-03-27
- Certified
- 2023-03-27
Frequently asked questions
- What is Mark De Guzman's NPI number?
- Mark De Guzman's National Provider Identifier (NPI) is 1588368435, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark De Guzman's specialty?
- Mark De Guzman is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark De Guzman located?
- Mark De Guzman's practice location on file with NPPES is 348 13th St Ste 203, Brooklyn, NY 11215-6179.
- What is Mark De Guzman's phone number?
- The practice phone number listed in the NPPES registry for Mark De Guzman is (718) 788-5101.
- Is Mark De Guzman's NPI active?
- Yes — Mark De Guzman's NPI (1588368435) is active in the NPPES registry as of the last update on 2023-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.