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OLIVIA WALSH LSW
NPI 1437800075
Social Worker in South Portland, ME

Active since January 14, 2022PECOS Enrolled
100 FODEN RD STE 100, SOUTH PORTLAND, ME 04106(207) 874-1486 Get Directions Write a Review

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

Record update history: Mar 4, 2026, Oct 9, 2025, May 16, 2023 and 1 more (4 updates tracked since 2022).

About Olivia Walsh Lsw NPPES

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

OLIVIA WALSH LSW (NPI 1437800075) is an individual social worker in South Portland, Maine, licensed in Maine (LC24869) and active in the NPI registry since January 2022. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1437800075
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameOLIVIA WALSHCredential: LSW
Location Address100 FODEN RD STE 100South Portland, ME 04106-2327
Mailing Address100 Gannett Dr Ste CSouth Portland, ME 04106-5900 · (207) 347-2947 · Fax (207) 874-2317
Phone(207) 874-1486
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateJanuary 14, 2022
Last NPPES UpdateMarch 4, 20264 updates tracked since enumeration
NPPES CertifiedMarch 4, 2026
✔ NPI 1437800075 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in ME · LC24869
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.
100 FODEN RD STE 100, South Portland, ME 04106
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Olivia Walsh Lsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8527564152
PECOS Enrollment IDI20251002002630
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 Olivia Walsh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Intermed, PA
1.4 mi
Internal Medicine
100 GANNETT DR, SUITE C
South Portland, ME 04106
  • Reassigned Medicare billing, Maine enrollment
  • 200 clinicians in this Medicare group
NPI 1467422733 (207) 828-0361

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 4

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

DONALD KENT LCSW, CCS
Social Worker (Clinical)
100 FODEN RD STE 100
SOUTH PORTLAND, ME 04106
Cumberland County (207) 874-1486
DR. BRANDON CHIU M.D.
Otolaryngology
100 FODEN RD STE 100
SOUTH PORTLAND, ME 04106
Cumberland County (207) 347-2910
CATHERINE MULLEN LCSW
Social Worker (Clinical)
100 FODEN RD STE 100
SOUTH PORTLAND, ME 04106
Cumberland County (207) 874-1489
ANDRES ABREU MD
Psychiatry & Neurology (Psychiatry)
100 FODEN RD STE 100
SOUTH PORTLAND, ME 04106
Cumberland County (207) 523-3700

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 Olivia Walsh's NPI number?

The NPI number for Olivia Walsh is 1437800075. It was assigned to this individual provider in the NPPES registry on January 14, 2022.

Where is Olivia Walsh located?

Olivia Walsh practices at 100 Foden Rd Ste 100, South Portland, ME 04106. The listed phone number is (207) 874-1486.

What is Olivia Walsh's specialty?

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

Is Olivia Walsh enrolled in Medicare?

Yes. Olivia Walsh is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Olivia Walsh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Olivia Walsh reassigns Medicare benefits to Intermed, PA (South Portland, ME). 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 Olivia Walsh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Olivia Walsh accept?

Health plans from Harvard Pilgrim Health Care list Olivia Walsh as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Olivia Walsh was last updated on March 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.