Dr. Timothy R. Wassenaar
- Gender: Male
- Experience: 19 years
- Graduation year: 2002
- Sole propriator: No
- NPI: 1518928993
Dr. Timothy R. Wassenaar MD
Hematology and Oncology Specialist
He is located at N16W24131 Riverwood Drive in Waukesha, WI 53188. Can help patients with the following: Arthritis, Diarrhea, General Care, Nausea and Vomiting, Obesity, Osteoporosis. His National Provider Identifier (NPI) number is 1518928993. Appointment can be made via the phone number (262) 696-5690. He is affiliated with 3 practices and 2 hospitals.
Conditions treated
Dr. Timothy R. Wassenaar, being an hematology and oncology 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. Timothy R. Wassenaar.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Beta Thalassemia
- Bladder Control
- Bone Cancer
- Cancer
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Deep Vein Thrombosis (DVT)
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hemophilia
- Hiatal Hernia
- High Blood Pressure
- Hodgkin's Disease
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Idiopathic Thrombocytopenic Purpura (ITP)
- Influenza
- Inguinal Hernia
- Leukemia
- Migraine
- Multiple Myeloma
- Nausea and Vomiting
- Neutropenia
- Non-Hodgkin's Lymphoma (NHL)
- Obesity
- Osteoporosis
- Peptic Ulcer
- Pernicious Anemia
- Polycythemia
- Prescription Refill
- Pulmonary Embolism (PE)
- Sickle Cell Anemia
- Thalassemia
- Thrombocytopenia
- Urethritis
- Urinary Tract Infection (UTI)
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Timothy R. Wassenaar as in-network for the following 2026 plans.
Health plans
Anthem Blue Cross and Blue Shield
Network data as of Mar 25, 2026, as reported by the insurer.
Show all 18 plans from Anthem Blue Cross and Blue Shield
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Anthem Bronze Pathway/Lean 5000 (3 Free PCP Visits + $0 Select Drugs + Incentives) (5 plan variants) | HMO · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Pathway/Lean HSA (+ Incentives) (5 plan variants) | HMO · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Pathway/Lean Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) (5 plan variants) | HMO · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Preferred/Broad 5000 (3 Free PCP Visits + $0 Select Drugs + Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Preferred/Broad HSA (+ Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Gold Pathway/Lean 1000 ($0 Virtual PCP + $0 Select Drugs + Incentives) (5 plan variants) | HMO · Gold | Participating | Accepting new patients |
| Anthem Gold Pathway/Lean Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) (5 plan variants) | HMO · Gold | Participating | Accepting new patients |
| Anthem Gold Preferred/Broad 1000 ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Gold | Participating | Accepting new patients |
| Anthem Gold Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Gold | Participating | Accepting new patients |
| Anthem Heart Healthy Bronze Pathway/Lean 0 Med Ded ($0 Virtual PCP+$0 Select Drugs+Incentives) (5 plan variants) | HMO · Expanded Bronze | Participating | Accepting new patients |
| Anthem Heart Healthy Bronze Preferred/Broad 0 Med Ded ($0 Virtual PCP+$0 Select Drugs+Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Silver Pathway/Lean 4000 ($0 PCP Visits + $0 Select Drugs + Incentives) (5 plan variants) | HMO · Silver | Participating | Accepting new patients |
| Anthem Silver Pathway/Lean 5500 ($0 Virtual PCP + $0 Select Drugs + Incentives) (5 plan variants) | HMO · Silver | Participating | Accepting new patients |
| Anthem Silver Pathway/Lean Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) (5 plan variants) | HMO · Silver | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad 4000 ($0 PCP Visits + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad 5500 ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Silver | Participating | 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. Timothy R. Wassenaar 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. Timothy R. Wassenaar is enrolled to bill Medicare as a Practitioner - Hematology/oncology (also registered under: Practitioner - Internal Medicine) .
Bills through: Prohealth Medical Group Inc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Celgene | $868 |
| Onyx Pharmaceuticals An Amgen Subsidiary | $120 |
| E.R. Squibb \u0026 Sons | $110 |
Other
| Food and Beverage | $1099 |
Studies
Graduated in 2002Additional Specialities
- Internist
Affiliated practices
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- Address: N16W24131 Riverwood Drive Waukesha, 53188, WI
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- Address: 725 American Avenue Waukesha, 53188, WI
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- Address: 725 American Avenue Waukesha, 53188, WI
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- Address: Prohealth Care Regional Cancer Center 721 American Avenue Waukesha, 53188, WI
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Questions & Answers
What conditions does Dr. Timothy R. Wassenaar treat?
Dr. Timothy R. Wassenaar provides treatment for Arthritis, Diarrhea, General Care, Nausea and Vomiting, Obesity, Osteoporosis. For the full list see this list.
Does Dr. Timothy R. Wassenaar have affiliation with practices?
Dr. Timothy R. Wassenaar is affiliated with Prohealth Care Medical Associates Inc.. For the full list of practices see this list.
Does Dr. Timothy R. Wassenaar accept patients with Anthem Blue Cross and Blue Shield?
Yes, Dr. Timothy R. Wassenaar is listed in-network for Anthem Blue Cross and Blue Shield through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Where can you meet with Dr. Timothy R. Wassenaar?
Dr. Timothy R. Wassenaar's office is located at N16W24131 Riverwood Drive in Waukesha, WI 53188.
Has Dr. Timothy R. Wassenaar affiliation with hospitals?
Dr. Timothy R. Wassenaar is affiliated with WAUKESHA MEMORIAL HOSPITAL. For the full list of hospitals see this list.