William D Timm, MD
Infectious Disease Internal Medicine
William D Timm is an Infectious Disease Internal Medicine specialist based in Brookfield, WI with over 35 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
William D Timm, MD practices as part of a group infectious disease specialist practice in Brookfield, WI. Trained at Medical College of Wisconsin (class of 1991), he has been practicing for over 35 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data).
Older · 492dNPPES updated 2025-01-16 · verify NPI on CMS · Verify license at Wisconsin Medical Examining Board
Contact & Location
Practice Location
150 S Sunny Slope Rd Ste 136, Brookfield, WI 53005-4858
How Does This Doctor Compare?
Medicare Patients
351
Unique beneficiaries
Standard volumePrescription Recipients
201
Patients prescribed
Prescriptions Written
891
Total claims
Total Medicare drug cost: $405k
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.
High blood pressure — a leading risk factor for heart disease and stroke
Elevated cholesterol or triglycerides that increase heart disease risk
Joint inflammation causing pain, swelling, and stiffness
Gradual loss of kidney function over time, often linked to diabetes or hypertension
A condition where the body cannot properly regulate blood sugar levels
Conditions affecting emotional state, including depression and bipolar disorder
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
The heart cannot pump blood efficiently enough to meet the body's needs
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$54 received from industry
3 transactions reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to William D Timm's NPI.
Social Vulnerability Index: 0.55 / 1.00
Moderate vulnerabilityHe practices in a community where the CDC measures social vulnerability across socioeconomic status, household composition, racial/ethnic minority status, and housing/transportation factors. A higher index indicates more residents may face barriers accessing care.
Source: CDC/ATSDR Social Vulnerability Index.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1991
Medical College of Wisconsin
Board certified · Jan 15, 2025
Self-reported via NPPES
35 years in practice
Senior practitioner
Infectious disease specialists diagnose and treat complex infections including HIV/AIDS, hepatitis, tuberculosis, antibiotic-resistant infections (MRSA), post-surgical infections, and travel-related illnesses. They also provide pre-travel vaccination counseling and manage infections in immunocompromised patients.
Taxonomy: 207RI0200X
Education & Training
Medical College of Wisconsin (Class of 1991)
Mailing address
150 S Sunny Slope Rd Suite 136, Brookfield, WI 53005-6461
Differs from practice location
Virtual Infectious Disease Care With William D Timm
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with William D Timm for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Brookfield required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about William D Timm
NPI records show Dr. Timm as active with telehealth listed in Brookfield, WI. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (262) 786-4550.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator · HRSA HPSA · CDC SVI. See Data Methodology.
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Contact William D Timm
Practice Location
150 S Sunny Slope Rd Ste 136, Brookfield, WI 53005-4858
Mailing Address
150 S Sunny Slope Rd Suite 136, Brookfield, WI 53005-6461
This is a provider directory. Contact the office directly to schedule appointments.
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