NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Senior Psychiatric Services of Mi, Pllc

Psychiatry Physician in Livonia, MI · enumerated 2006 · authorized official Debra Koelzer, Managing Partner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1336152933

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Senior Psychiatric Services of Mi, Pllc
Practice address 38807 Ann Arbor Rd Ste 7, Livonia, MI, 48150
Phone (734) 953-6734
Fax (734) 953-6738
Enumeration date Aug 14, 2006
Last updated in NPPES Jan 24, 2019

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians Primary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Debra Koelzer
Title Managing Partner
Phone (734) 634-9965

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for Senior Psychiatric Services of Mi, Pllc?
NPPES lists Debra Koelzer (Managing Partner) as the authorized official for this organization.
What is the NPI number for Senior Psychiatric Services of Mi, Pllc?
The NPI for Senior Psychiatric Services of Mi, Pllc is 1336152933, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-24.