Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Eastside Outpatient Services PLLC

Organization Methadone Clinic · NPI 1487275376

Eastside Outpatient Services PLLC is a Methadone Clinic in Muskegon, Michigan. Registered with an NPI since 2020.

In the registry since
2020
Specialties on file
2
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

445 E Sherman Blvd
Muskegon, MI 49444-2203
Phone: (231) 739-4359
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Substance Use Disorder Rehabilitation Clinic/Center (primary) Taxonomy 261QR0405X
Methadone Clinic Taxonomy 261QM2800X

Record details

NPI number1487275376
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Darien Smith — Program Director · (231) 206-9612
NPI enumeratedMay 1, 2020
Last updated in NPPESMay 1, 2020
Certification dateMay 1, 2020
Mailing address445 E Sherman Blvd, Muskegon, MI 49444-2203