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MR. DAVID FRANCIS TIMMER M.S.W.
NPI 1639286552
Social Worker - Clinical in Hales Corners, WI

Active since August 24, 2006PECOS EnrolledAccepts Medicare Assignment
5300 S 108TH ST, 12B, HALES CORNERS, WI 53130(414) 529-2591(414) 529-2669 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mr. David Francis Timmer M.s.w. NPPES

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

MR. DAVID FRANCIS TIMMER M.S.W. (NPI 1639286552) is an individual clinical provider in Hales Corners, Wisconsin, licensed in Wisconsin (1722 123) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1639286552
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMR. DAVID FRANCIS TIMMERCredential: M.S.W.
Location Address5300 S 108TH ST, 12BHales Corners, WI 53130-1368
Mailing Address5300 S 108th St, 12bHales Corners, WI 53130-1368 · (414) 529-2591 · Fax (414) 529-2669
Phone(414) 529-2591
Fax(414) 529-2669
Sole ProprietorYes
Medical School CMSOtherGraduated 1989
Enumeration DateAugust 24, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1639286552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in WI · 1722 123
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.
Also ListedMarriage & Family TherapistTaxonomy 106H00000X · License 284 124 (WI)
5300 S 108TH ST, Hales Corners, WI 53130
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Other Identifiers 1

Medicaid39653900WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. David Francis Timmer M.s.w. 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 ID9436242195
PECOS Enrollment IDI20070911000691
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 53130 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 $53.90 – $163.24
Typical copayment $0.00 (range $13.47 – $40.81)
Most-billed visit code NA
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
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 2

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

MRS. BARBARA JOSEPHINE BAER MA LMFT LPC LCSW
Marriage & Family Therapist
5300 S 108TH ST, RECOVERY POINT SC SUITE 12B
HALES CORNERS, WI 53130
Milwaukee County (414) 529-2591
MARIANNE FAITH SKROBIAK LPC
Counselor (Addiction (Substance Use Disorder))
5300 S 108TH ST, SUITE 12B
HALES CORNERS, WI 53130
Milwaukee County (414) 529-2591

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 David Timmer's NPI number?

The NPI number for David Timmer is 1639286552. It was assigned to this individual provider in the NPPES registry on August 24, 2006.

Where is David Timmer located?

David Timmer practices at 5300 S 108th St 12B, Hales Corners, WI 53130. The listed phone number is (414) 529-2591.

What is David Timmer's specialty?

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

Is David Timmer enrolled in Medicare?

Yes. David Timmer 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.

What insurance does David Timmer accept?

Health plans from Medica list David Timmer 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 David Timmer was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.