Maria Siebel, R-L.C.S.W.
NPI 1659424844 · Mental Health Counselor · Brooklyn, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Siebel, R-L.C.S.W. is a Mental Health Counselor provider in Brooklyn, NY (NPI 1659424844).
Provider details
- NPI number
- 1659424844
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- R-L.C.S.W.
- Sex
- Female
- Sole proprietor
- Yes
- License
- R034144-1 (NY)
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
- 2007-01-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Maria Siebel's NPI number?
- Maria Siebel's National Provider Identifier (NPI) is 1659424844, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Siebel's specialty?
- Maria Siebel is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Maria Siebel located?
- Maria Siebel's practice location on file with NPPES is 565 1st St, Brooklyn, NY 11215-2310.
- What is Maria Siebel's phone number?
- The practice phone number listed in the NPPES registry for Maria Siebel is (718) 369-2659.
- Does Maria Siebel accept Medicare?
- Maria Siebel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Siebel's NPI active?
- Yes — Maria Siebel's NPI (1659424844) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.