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RYLEE CASSIDY ZIMMER LCSW, LMSW, LGSW
NPI 1205693686
Social Worker in Boston, MA

Active since March 04, 2024PECOS Enrolled
850 HARRISON AVE, BOSTON, MA 02118(617) 414-4642 Get Directions Write a Review

NPPES record last updated: March 4, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Rylee Cassidy Zimmer Lcsw, Lmsw, Lgsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RYLEE CASSIDY ZIMMER LCSW, LMSW, LGSW (NPI 1205693686) is an individual social worker in Boston, Massachusetts, licensed in Massachusetts (228899) and active in the NPI registry since March 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1205693686
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameRYLEE CASSIDY ZIMMERCredential: LCSW, LMSW, LGSW
Location Address850 HARRISON AVEBoston, MA 02118-4001
Mailing Address443 New York Ave Nw Apt 905Washington, DC 20001-4865 · (940) 456-0612
Phone(617) 414-4642
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateMarch 4, 2024
NPPES CertifiedMarch 3, 2024
✔ NPI 1205693686 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Licenses✔ Licensed in MA · 228899✔ Licensed in DC · LGSW✔ Licensed in MD · 31166
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
850 HARRISON AVE, Boston, MA 02118
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rylee Cassidy Zimmer Lcsw, Lmsw, Lgsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5799261731
PECOS Enrollment IDI20260129003946, I20260618001240
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Rylee Zimmer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Columbia Associates In Psychiatry PC
397 mi
Psychiatry
2501 N GLEBE RD, SUITE 303
Arlington, VA 22207
  • Reassigned Medicare billing, District of Columbia, Maryland and Virginia enrollments
  • 267 clinicians in this Medicare group
NPI 1699012930 (703) 841-1290

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SHEELA S MARU MD
Obstetrics & Gynecology
850 HARRISON AVE, YACC 4
BOSTON, MA 02118
Suffolk County (617) 414-2000
LIDYA H WLASIUK M.D.
Family Medicine
850 HARRISON AVE, YACC 5
BOSTON, MA 02118
Suffolk County (617) 414-2080
DEBORAH A FRANK MD
Pediatrics
850 HARRISON AVE, YACC5
BOSTON, MA 02118
Suffolk County (617) 414-4841
BRIAN R PENTI M.D.
Family Medicine
850 HARRISON AVE, YACC 4
BOSTON, MA 02118
Suffolk County (617) 414-2080
MARY CHIN LICSW
Social Worker (Clinical)
850 HARRISON AVE, DOWLING 9
BOSTON, MA 02118
Suffolk County (617) 414-4672
ADELIZA OLIVERO MD
Psychiatry & Neurology (Psychiatry)
850 HARRISON AVE
BOSTON, MA 02118
Suffolk County (617) 414-5245
JEAN EWAN CNM
Advanced Practice Midwife
850 HARRISON AVE, YAWKEY 4TH FLOOR
BOSTON, MA 02118
Suffolk County (617) 414-2000
DOREEN LINEHAN RN
Registered Nurse
850 HARRISON AVE, DOWLING NORTH, SUITE 5108
BOSTON, MA 02118
Suffolk County (617) 638-7062

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rylee Zimmer's NPI number?

The NPI number for Rylee Zimmer is 1205693686. It was assigned to this individual provider in the NPPES registry on March 4, 2024.

Where is Rylee Zimmer located?

Rylee Zimmer practices at 850 Harrison Ave, Boston, MA 02118. The listed phone number is (617) 414-4642.

What is Rylee Zimmer's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Rylee Zimmer enrolled in Medicare?

Yes. Rylee Zimmer is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Rylee Zimmer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rylee Zimmer reassigns Medicare benefits to Columbia Associates In Psychiatry PC (Arlington, VA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Rylee Zimmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Rylee Zimmer was last updated on March 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.