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LILLIAN RUTH DEMPSEY LLMSW
NPI 1144871930
Social Worker in Muskegon, MI

Active since September 24, 2019PECOS EnrolledAccepts Medicare Assignment
376 E APPLE AVE, MUSKEGON, MI 49442(231) 724-3519(231) 724-4545 Get Directions Write a Review

NPPES record last updated: September 24, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Lillian Ruth Dempsey Llmsw NPPES

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

LILLIAN RUTH DEMPSEY LLMSW (NPI 1144871930) is an individual social worker in Muskegon, Michigan, licensed in Michigan (6801105428) and active in the NPI registry since September 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1144871930
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameLILLIAN RUTH DEMPSEYCredential: LLMSW
Location Address376 E APPLE AVEMuskegon, MI 49442-3466
Mailing Address376 E Apple AveMuskegon, MI 49442-3466 · (231) 724-3519 · Fax (231) 724-4545
Phone(231) 724-3519
Fax(231) 724-4545
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateSeptember 24, 2019
✔ NPI 1144871930 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 MI · 6801105428
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.
376 E APPLE AVE, Muskegon, MI 49442
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Lillian Ruth Dempsey Llmsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID345633897
PECOS Enrollment IDI20220207000738
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 Lillian Dempsey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Muskegon
Same address
Mental Health (Including Community Mental Health Center)
376 E APPLE AVENUE
Muskegon, MI 49442
  • Reassigned Medicare billing, Michigan enrollment
  • 58 clinicians in this Medicare group
NPI 1003914946 (231) 724-1111

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.

MRS. REBECA JOSEPHINE GASKIN RN
Registered Nurse (Psychiatric/Mental Health)
376 E APPLE AVE
MUSKEGON, MI 49442
Muskegon County (231) 724-3699
CASSANDRA SCHIELER
Social Worker (Clinical)
376 E APPLE AVE
MUSKEGON, MI 49442
Muskegon County (231) 724-7190
DAVID RAY REINHART
Social Worker
376 E APPLE AVE
MUSKEGON, MI 49442
Muskegon County (231) 670-9850
MARIA ALVARADO
Case Manager/Care Coordinator
376 E APPLE AVE
MUSKEGON, MI 49442
Muskegon County (231) 724-1111
MADISON GRUNOW
Peer Specialist
376 E APPLE AVE
MUSKEGON, MI 49442
Muskegon County (231) 724-1111
LOGAN HILLARY PARMELEE
Peer Specialist
376 E APPLE AVE
MUSKEGON, MI 49442
Muskegon County (231) 724-1111
GWENDOLYN RENE HORNING CCC-SLP
Speech-Language Pathologist
376 E APPLE AVE
MUSKEGON, MI 49442
Muskegon County (231) 724-1111
MR. EDWARD STEPHEN SHIER LMSW
Social Worker (Clinical)
376 E APPLE AVE
MUSKEGON, MI 49442
Muskegon County (231) 724-1111

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 Lillian Dempsey's NPI number?

The NPI number for Lillian Dempsey is 1144871930. It was assigned to this individual provider in the NPPES registry on September 24, 2019.

Where is Lillian Dempsey located?

Lillian Dempsey practices at 376 E Apple Ave, Muskegon, MI 49442. The listed phone number is (231) 724-3519.

What is Lillian Dempsey's specialty?

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

Is Lillian Dempsey enrolled in Medicare?

Yes. Lillian Dempsey is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Lillian Dempsey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lillian Dempsey reassigns Medicare benefits to County Of Muskegon (Muskegon, MI). 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 Lillian Dempsey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lillian Dempsey accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Oscar Insurance Company and Priority Health list Lillian Dempsey 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 Lillian Dempsey was last updated on September 24, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.