Hayley Siegel
Clinical Social Worker · East Boston, MA
Hayley Siegel is a clinical social worker with a practice address in East Boston, Massachusetts, and NPI 1992171557, issued on Aug 18, 2015. Check the license (Massachusetts 121735, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hayley Siegel
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 121735 MA
Self-reported in NPPES; status is on the state search - Practice location
- 31 Monmouth St # 4, East Boston, MA 02128
- Phone
- (617) 817-8915
- Enumerated
- Aug 18, 2015
- Record last updated
- Jul 7, 2026
- Medicare enrollment
- Enrolled (PECOS I20201125002521); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 17,815 in Massachusetts → Look up another NPI →
Verify Hayley Siegel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 121735Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Child And Family Psychological Services PLLCBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hayley Siegel among 17,815 clinical social worker records in Massachusetts
Hayley Siegel is one of 17,815 clinical social worker records with a practice address in Massachusetts. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 55% of them.
- NPI issued2015 · 55% of these records are older, 42% newer
- In a Medicare fileYes · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 17% of these records are
- Graduated2016 · median 2004 among the 3,059 with a school on file
- Record last updated2026 · 68% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
70 clinical social worker records list a practice address in East Boston
They are 70 of the 587 NPPES records with a practice address in East Boston, and 17,815 clinical social worker records in Massachusetts.
All 17,815 in Massachusetts → Every provider in East Boston → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Susan Bruce, LICSWEast Boston, MA 021281114033644
- Beverly Chase, LCSWEast Boston, MA 021281912059759
- Carmen Delgado, LICSWEast Boston, MA 021281730265786
- David Gaeta, MSWEast Boston, MA 021281972556074
- Elizabeth Goodchild, LICSWEast Boston, MA 021281265505341
- Marsha Hanssen, LICSWEast Boston, MA 021281770660821
- Edward Henrichs, LICSWEast Boston, MA 021281205991775
- Stephanie Johnson, LICSWEast Boston, MA 021281871670190
Common questions
What is Hayley Siegel's NPI number?
Hayley Siegel's National Provider Identifier (NPI) is 1992171557, issued on Aug 18, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Hayley Siegel located?
The NPPES record lists a practice address at 31 Monmouth St # 4, East Boston, MA, 02128. Phone: (617) 817-8915. Providers update this record themselves, so call before visiting.
How can I verify Hayley Siegel's license?
NPPES lists Massachusetts license number 121735, as entered by the provider. Search the Massachusetts 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. Medicare files from data.cms.gov. 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.