Maria Lynn Siebel, R-L.C.S.W.
Mental Health Counselor · Brooklyn, NY
Maria Lynn Siebel, R-L.C.S.W. is a mental health counselor with a practice address in Brooklyn, New York, and NPI 1659424844, issued on Jan 19, 2007. Check the license (New York R034144-1, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Maria Lynn Siebel
- Credential
- R-L.C.S.W.
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- License number
- R034144-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 565 1St St, Brooklyn, NY 11215
- Phone
- (718) 369-2659
- Enumerated
- Jan 19, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 565 1St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gretchen Hartman, LCSWClinical Social Worker1366526493
- Helene Kendler, L.C.S.W.Clinical Social Worker1689715773
- Jessica Knapp, LCSWClinical Social Worker1194217836
- Patrick McNulty, LCSWClinical Social Worker1194121756
- Royanne Weiss, LCSW-RClinical Social Worker1457418865
Verify Maria Lynn Siebel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license R034144-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2,722 mental health counselor records list a practice address in Brooklyn
They are 2,722 of the 64,057 NPPES records with a practice address in Brooklyn, and 19,989 mental health counselor records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,722 in Brooklyn → All 19,989 in New York → Every provider in Brooklyn →
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- Denise Abatemarco, LMHCBrooklyn, NY1487992897
- Jacqueline Abbanat, MHCNewburgh, NY1891421335
Common questions
What is Maria Lynn Siebel, R-L.C.S.W.'s NPI number?
Maria Lynn Siebel, R-L.C.S.W.'s National Provider Identifier (NPI) is 1659424844, issued on Jan 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Maria Lynn Siebel, R-L.C.S.W. located?
The NPPES record lists a practice address at 565 1St St, Brooklyn, NY, 11215. Phone: (718) 369-2659. Providers update this record themselves, so call before visiting.
How can I verify Maria Lynn Siebel, R-L.C.S.W.'s license?
NPPES lists New York license number R034144-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.