Katherine Twitchell, LCSW
Clinical Social Worker · New York, NY
Katherine Twitchell, LCSW is a clinical social worker with a practice address in New York, New York, and NPI 1992358147, issued on Jul 17, 2019. Check the license (New York 099724, 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
- Katherine Twitchell
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 099724 NY
Self-reported in NPPES; status is on the state search - Practice location
- 227 Madison St FL 5, New York, NY 10002
- Phone
- (212) 238-7350
- Enumerated
- Jul 17, 2019
- Record last updated
- Sep 22, 2025
- Medicare enrollment
- Enrolled (PECOS I20260515001741); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 29,293 in New York → Look up another NPI →
Also registered at 227 Madison St FL 5
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Heather Luu, LMSWClinical Social Worker1518688787
- Yesica Nieves Quinones, PSYDClinical Psychologist1366086522
- Hu WangPhysical Therapist1265070940
Verify Katherine Twitchell 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 099724Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Katherine Twitchell among 29,293 clinical social worker records in New York
Katherine Twitchell, LCSW is one of 29,293 clinical social worker records with a practice address in New York. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2019, is newer than 74% of them.
- NPI issued2019 · 74% of these records are older, 22% newer
- In a Medicare fileNo · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 17% of these records are
- Graduated2016 · median 2001 among the 5,004 with a school on file
- Record last updated2025 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6,908 clinical social worker records list a practice address in New York
They are 6,908 of the 98,468 NPPES records with a practice address in New York, and 29,293 clinical social worker records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 29,293 in New York → Every provider in New York → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Naomi Brussel, LCSWNew York, NY 100021376594184
- Laura Collins, L.C.S.W.New York, NY 100021497712244
- Shlomit Geisler, LCSWNyc, NY 100021831157445
- Yuen Ling Ho, LCSWNew York, NY 100021679530927
- Deborah Kagel, LCSWNew York, NY 100021306803119
- Grace Ying Chi Lai, LCSWNew York, NY 100021467410050
- Nancy Lau, LCSWNew York, NY 100021922066513
- Joan Le Var, LCSWNew York, NY 100021053378208
Common questions
What is Katherine Twitchell, LCSW's NPI number?
Katherine Twitchell, LCSW's National Provider Identifier (NPI) is 1992358147, issued on Jul 17, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Twitchell, LCSW located?
The NPPES record lists a practice address at 227 Madison St FL 5, New York, NY, 10002. Phone: (212) 238-7350. Providers update this record themselves, so call before visiting.
How can I verify Katherine Twitchell, LCSW's license?
NPPES lists New York license number 099724, 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.