Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DEREK WITZKE LLMSW
NPI 1104600626
Social Worker - Clinical in Cadillac, MI

Q: What is Derek Witzke's NPI number?

The NPI number for Derek Witzke is 1104600626. It was assigned to this individual provider in the NPPES registry on August 24, 2023.

Q: What is Derek Witzke's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Q: When was this NPI record last updated?

The NPPES record for Derek Witzke was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days 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.

Active since August 24, 2023PECOS Enrolled

805 S CARMEL ST, CADILLAC, MI 49601(231) 775-6517 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 10, 2026, Aug 24, 2023 (2 updates tracked since 2023).

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About Derek Witzke Llmsw NPPES

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

DEREK WITZKE LLMSW (NPI 1104600626) is an individual clinical provider in Cadillac, Michigan, licensed in Michigan (6801123020) and active in the NPI registry since August 2023. He is enrolled in Medicare PECOS and maintains a secondary practice location in Cadillac.

NPPES Registry Identity

NPI1104600626

Entity TypeIndividualMale

Primary Taxonomy1041C0700X

Provider Legal NameDEREK WITZKECredential: LLMSW

Location Address805 S CARMEL STCadillac, MI 49601-2344

Mailing Address5190 E 32 RdCadillac, MI 49601-9006 · (231) 878-7523

Phone(231) 775-6517

Sole ProprietorNo

Enumeration DateAugust 24, 2023

Last NPPES UpdateSeptember 10, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 10, 2026

✔ NPI 1104600626 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code1041C0700X

License✔ Licensed in MI · 6801123020

Definition

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

805 S CARMEL ST, Cadillac, MI 49601

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Secondary Practice Location 1

Location 15190 E 32 RdCadillac, MI 49601-9006 · Phone (231) 878-7523

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include McLaren Health Plan Community.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Derek Witzke Llmsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$0.00 typical visit price

range $54.34 – $166.68

Typical copayment $0.00 (range $13.58 – $41.67)

Most-billed visit code NA

Established Patient

$68.07 typical visit price

range $17.09 – $135.40

Typical copayment $17.01 (range $4.27 – $33.85)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

ELLEN EVELYN MAXWELL LLPC

Counselor (Professional)