NPPES file of Aug 9, 2026

Rylee Cassidy Zimmer, LCSW, LMSW, LGSW

Social Worker · Boston, MA

Rylee Cassidy Zimmer, LCSW, LMSW, LGSW is a social worker with a practice address in Boston, Massachusetts, and NPI 1205693686, issued on Mar 4, 2024. Check the license (Massachusetts 228899, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1205693686
Name
Rylee Cassidy Zimmer
Credential
LCSW, LMSW, LGSW
Primary taxonomy
Social Worker 104100000X
License numbers
228899 MA
LGSW DC
31166 MD
Self-reported in NPPES; status is on the state search
Practice location
850 Harrison Ave, Boston, MA 02118
Phone
(617) 414-4642
Enumerated
Mar 4, 2024
Record last updated
Mar 4, 2024
Medicare enrollment
Enrolled (PECOS I20260129003946); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest social worker records → All 5,517 in Massachusetts → Look up another NPI →

Also registered at 850 Harrison Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jodi Abbott, MDMaternal & Fetal Medicine Physician1346222692
  2. Mayssa Aboody, CNMAdvanced Practice Midwife1780455998
  3. Zinah Abukhalil-Quinonez, LICSWClinical Social Worker1376662627
  4. Kirsten AdamsObstetrics & Gynecology Physician1477203446
  5. William Adams, MDPediatrics Physician1255314696
  6. Soukaina Adolphe, M.D.Pediatrics Physician1760579155

Verify Rylee Cassidy Zimmer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 228899    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Rylee Cassidy Zimmer among 5,517 social worker records in Massachusetts

Rylee Cassidy Zimmer, LCSW, LMSW, LGSW is one of 5,517 social worker records with a practice address in Massachusetts. 5% 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 2024, is newer than 84% of them.

  • NPI issued2024 · 84% of these records are older, 10% newer
  • In a Medicare fileNo · 5% of these records are
  • In the CMS Doctors and Clinicians fileYes · 8% of these records are
  • Graduated2022 · median 2012 among the 435 with a school on file
  • Record last updated2024 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

463 social worker records list a practice address in Boston

They are 463 of the 41,865 NPPES records with a practice address in Boston, and 5,517 social worker records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 5,517 in Massachusetts → Every provider in Boston → Social Worker nationwide →

The 8 social worker records with the nearest ZIP codes

  1. Laura Allen, LICSWBoston, MA 021181740446996
  2. Luis BorreroBoston, MA 021181215186994
  3. Virginia Chan, LCSWBoston, MA 021181659577955
  4. Virgenmina CosmeBoston, MA 021181154518942
  5. Margaret Dolan, LICSWBoston, MA 021181386740157
  6. Isabel Fierro-Kilfoyle, LSWBoston, MA 021181770706913
  7. Rosemary Jones, MSWBoston, MA 021181144346545
  8. Evelyn LautureBoston, MA 021181326176660

Common questions

What is Rylee Cassidy Zimmer, LCSW, LMSW, LGSW's NPI number?

Rylee Cassidy Zimmer, LCSW, LMSW, LGSW's National Provider Identifier (NPI) is 1205693686, issued on Mar 4, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Rylee Cassidy Zimmer, LCSW, LMSW, LGSW located?

The NPPES record lists a practice address at 850 Harrison Ave, Boston, MA, 02118. Phone: (617) 414-4642. Providers update this record themselves, so call before visiting.

How can I verify Rylee Cassidy Zimmer, LCSW, LMSW, LGSW's license?

NPPES lists Massachusetts license number 228899, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.