Dr. William D. Timm
- Gender: Male
- Experience: 30 years
- Graduated from: Medical College Of Wisconsin
- Graduation year: 1991
- Sole propriator: No
- NPI: 1902856016
Dr. William D. Timm MD
Infectious Disease Specialist
He is located at 150 South Sunny Slope Road Suite 136 in Brookfield, WI 53005. Can help patients with the following: Common Cold, Ebola Hemorrhagic Fever, Migraine, Severe Acute Respiratory Syndrome (SARS), Syphilis, Tuberculosis (TB). His National Provider Identifier (NPI) number is 1902856016. Appointment can be made via the phone number (262) 786-4550. He is affiliated with 1 practices and 5 hospitals.
Conditions treated
Dr. William D. Timm, being an infectious disease specialist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. William D. Timm.
- Abdominal Pain
- Acquired Immunodeficiency Syndrome (AIDS)
- Acute Pain
- Anemia
- Anthrax
- Arthritis
- Asthma
- Atherosclerosis
- Bacterial Vaginosis
- Bladder Control
- Boils
- Botulism
- Bronchitis
- Brucellosis
- Candida Auris
- Cat Scratch Disease
- Cellulitis
- Chagas Disease
- Chest Pain
- Chickenpox
- Chlamydia
- Cholecystitis
- Cholera
- Chronic Obstructive Pulmonary Disease (COPD)
- Chronic Rhinitis
- Common Cold
- Constipation
- Coronavirus
- Cryptococcosis
- Cystitis
- Cytomegalovirus (CMV)
- Dengue Fever
- Diarrhea
- Diphtheria
- E. Coli Infection
- Eastern Equine Encephalitis (EEE)
- Ebola Hemorrhagic Fever
- Edema
- Encephalitis
- Endocarditis
- Epididymitis
- Fever
- Fifth Disease
- Food Poisoning
- Gangrene
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Genital Herpes
- Giardiasis
- Gonorrhea
- Guinea Worm Disease
- Hand, Foot, and Mouth Disease (HFMD)
- Headache
- Heart Disease
- Helicobacter Pylori Infection
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Herpes Simplex Virus
- Hiatal Hernia
- High Blood Pressure
- Histoplasmosis
- Hot Flashes
- Human Immunodeficiency Virus (HIV)
- Human Papillomavirus (HPV)
- Hyperlipidemia
- Hyponatremia
- Impetigo
- Infectious Diseases
- Infectious Mononucleosis
- Influenza
- Inguinal Hernia
- Leishmaniasis
- Leprosy
- Leptospirosis
- Listeriosis
- Lyme Disease
- Mad Cow Disease
- Malaria
- Measles
- Meningitis
- Migraine
- Mumps
- Nail Fungus
- Nausea and Vomiting
- Necrotizing Fasciitis (NF)
- Neutropenia
- Obesity
- Osteomyelitis
- Osteoporosis
- Peptic Ulcer
- Pinworm Infection
- Pityriasis Rosea
- Pneumonia
- Polio
- Prescription Refill
- Rabies
- Rocky Mountain Spotted Fever (RMSF)
- Roseola
- Rubella
- Salmonella Food Poisoning
- Scabies
- Scarlet Fever
- Schistosomiasis
- Sepsis
- Severe Acute Respiratory Syndrome (SARS)
- Sexually Transmitted Diseases (STDs)
- Smallpox
- Sore Throat
- Staph Infection
- Stomach Flu
- Strep Throat
- Swine Flu
- Syphilis
- Tetanus
- Thrush
- Tonsillitis
- Toxic Shock Syndrome (TSS)
- Toxoplasmosis
- Trichinosis
- Tuberculosis (TB)
- Typhoid Fever
- Upper Respiratory Infection (URI)
- Urethritis
- Urinary Tract Infection (UTI)
- Valley Fever
- Viral Hemorrhagic Fever (VHF)
- West Nile Virus
- Whooping Cough
- Yaws
- Yeast Infection
- Yellow Fever
- Zika Virus
Procedures Performed by Dr. William D. Timm
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. William D. Timm as in-network for the following 2026 plans.
Health plans
CareSource (Common Ground Healthcare)
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 18 plans from CareSource (Common Ground Healthcare)
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| CareSource (Common Ground Healthcare) Bronze $0 Ded / $2500 Rx Ded | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Bronze $0 Ded / $2500 Rx Ded - Vision Exam | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Bronze $9600 ($45 PCP Copay) | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Bronze $9600 ($45 PCP Copay) - Vision Exam | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Bronze Standard $7500 | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Bronze Standard $7500 - Vision Exam | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold $0 Ded | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold $0 Ded - Vision Exam | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold $3300 | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold $3300 - Vision Exam | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold Standard $2000 | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold Standard $2000 - Vision Exam | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver $4700 Ded / $5000 Rx Ded | EPO · Silver | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver $4700 Ded / $5000 Rx Ded - Vision Exam | EPO · Silver | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver $5000 Ded / $6000 Rx Ded | EPO · Silver | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver $5000 Ded / $6000 Rx Ded - Vision Exam | EPO · Silver | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver Standard $6000 | EPO · Silver | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver Standard $6000 - Vision Exam | EPO · Silver | Preferred | Accepting new patients |
Dean Health Plan
Network data as of Aug 13, 2026, as reported by the insurer.
Show all 9 plans from Dean Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Dean Bronze $0 Copay PCP Visits | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Dean Bronze Share | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Dean Expanded Bronze Standard | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Dean Gold HSA | HMO · Gold | Preferred | Accepting new patients |
| Dean Gold Share | HMO · Gold | Preferred | Accepting new patients |
| Dean Gold Standard | HMO · Gold | Preferred | Accepting new patients |
| Dean Silver $0 Copay PCP Visits | HMO · Silver | Preferred | Accepting new patients |
| Dean Silver Share | HMO · Silver | Preferred | Accepting new patients |
| Dean Silver Standard | HMO · Silver | Preferred | Accepting new patients |
Network Health
Network data as of Jan 12, 2026, as reported by the insurer.
Show all 14 plans from Network Health
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Prestige Bronze $0 Medical Deductible (2 plan variants) | HMO · Expanded Bronze | Signatureprestigebronzezeromedicaldeductible | Accepting new patients |
| Prestige Bronze $0 Medical Deductible + Dental + Vision | HMO · Expanded Bronze | Signatureprestigebronzezeromedicaldeductibledv | Accepting new patients |
| Prestige Bronze $0 Medical Deductible + Dental +Vision | HMO · Expanded Bronze | Signatureprestigebronzezeromedicaldeductibledv | Accepting new patients |
| Prestige Bronze Essential + 3 Free PCP Visits | HMO · Expanded Bronze | Prestigebronzeessential | Accepting new patients |
| Prestige Bronze Essential + Dental + Vision + 3 Free PCP Visits | HMO · Expanded Bronze | Prestigebronzeessentialdv | Accepting new patients |
| Prestige Bronze Plus | HMO · Expanded Bronze | Prestigebronzeplus | Accepting new patients |
| Prestige Gold | HMO · Gold | Prestigegold | Accepting new patients |
| Prestige Gold 50 + 1 Free PCP Visit | HMO · Gold | Prestigegoldfifty | Accepting new patients |
| Prestige Gold 50 + Dental + Vision + 1 Free PCP Visit | HMO · Gold | Prestigegoldfiftydv | Accepting new patients |
| Prestige Gold Essential + 3Free PCP Visits | HMO · Gold | Prestigegoldessential | Accepting new patients |
| Prestige Gold Essential + Dental + Vision + 3 Free PCP Visits | HMO · Gold | Prestigegoldessentialdv | Accepting new patients |
| Prestige Silver | HMO · Silver | Prestigesilver | Accepting new patients |
| Prestige Silver Essential + 3 Free PCP Visits | HMO · Silver | Prestigesilveressential | Accepting new patients |
| Prestige Silver Essential + Dental + Vision + 3 Free PCP Visits | HMO · Silver | Prestigesilveressentialdv | Accepting new patients |
UnitedHealthcare
Network data as of Sep 16, 2026, as reported by the insurer.
Show all 13 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential ($0 Virtual Urgent Care, No Referrals) | HMO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard (No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage ($0 Virtual Urgent Care, $5 Tier 2 Rx, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage+ ($0 Virtual Urgent Care, $5 Tier 2 Rx, Dental + Vision, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $5 Tier 2 Rx, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Advantage ($0 Virtual Urgent Care, $5 Tier 2 Rx, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Advantage+ ($0 Virtual Urgent Care, $5 Tier 2 Rx, Dental + Vision, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value ($0 Virtual Urgent Care, $8 Tier 2 Rx, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value+ ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. William D. Timm is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. William D. Timm is enrolled to bill Medicare as a Practitioner - Infectious Disease .
Bills through: Thedacare, Incorporated
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Actavis Pharma | $15496 |
| Allergan | $13746 |
| Forest Pharmaceuticals | $4899 |
Other
| Promotional Speaking or Service | $33050 |
| Food and Beverage | $1824 |
| Other | $11 |
Studies
MEDICAL COLLEGE OF WISCONSIN
Graduated in 1991Additional Specialities
- Internist
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Questions & Answers
Does Dr. William D. Timm have affiliation with practices?
Dr. William D. Timm is affiliated with Infectious Disease Specialists of Se WI SC.
Where can you meet with Dr. William D. Timm?
Dr. William D. Timm's office is located at 150 South Sunny Slope Road Suite 136 in Brookfield, WI 53005.
Has Dr. William D. Timm affiliation with hospitals?
Dr. William D. Timm is affiliated with WHEATON FRANCISCAN ST JOSEPH. For the full list of hospitals see this list.
What conditions does Dr. William D. Timm treat?
Dr. William D. Timm provides treatment for Common Cold, Ebola Hemorrhagic Fever, Migraine, Severe Acute Respiratory Syndrome (SARS), Syphilis, Tuberculosis (TB). For the full list see this list.
Does Dr. William D. Timm accept patients with Dean Health Plan?
Yes, Dr. William D. Timm is listed in-network for Dean Health Plan through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.