Dr. William P. Mazur
- Gender: Male
- Experience: 25 years
- Graduation year: 1996
- Sole propriator: No
- NPI: 1518250828
Dr. William P. Mazur M.D.
Infectious Disease Specialist
He is located at 1400 North Washington Street in Wilmington, DE 19801. Can help patients with the following: Cat Scratch Disease, Common Cold, Diarrhea, Heart Disease, Schistosomiasis, Strep Throat. His National Provider Identifier (NPI) number is 1518250828. Appointment can be made via the phone number (302) 320-1300. He is affiliated with 4 practices and 1 hospitals.
Conditions treated
Dr. William Patrick Mazur, 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 P. Mazur.
- Abdominal Pain
- Acquired Immunodeficiency Syndrome (AIDS)
- Acute Pain
- Anemia
- Anthrax
- Arthritis
- Asthma
- Atherosclerosis
- Bacterial Vaginosis
- Bladder Control
- Boils
- Botulism
- Bronchitis
- Brucellosis
- Cancer
- 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
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. William P. Mazur as in-network for the following 2026 plans.
Health plans
Ambetter Health of Delaware
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 17 plans from Ambetter Health of Delaware
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Clear Gold | EPO · Gold | Preferred | Accepting new patients |
| Clear Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold | EPO · Gold | Preferred | Accepting new patients |
| Complete Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Elite Silver | EPO · Silver | Preferred | Accepting new patients |
| Elite Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Everyday Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Focused Silver | EPO · Silver | Preferred | Accepting new patients |
| Focused Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Principal Bronze HSA | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Principal Bronze HSA + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Gold | EPO · Gold | Preferred | Accepting new patients |
| Standard Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Silver | EPO · Silver | Preferred | Accepting new patients |
AmeriHealth Caritas Next
Network data as of Sep 11, 2026, as reported by the insurer.
Show all 8 plans from AmeriHealth Caritas Next
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| AmeriHealth Caritas Next Bronze Essential + No Referrals | HMO · Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Bronze Premier + No Referrals | HMO · Expanded Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Bronze Signature + No Referrals | HMO · Expanded Bronze | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Gold Premier + No Referrals | HMO · Gold | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Gold Signature + No Referrals | HMO · Gold | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Essential + No Referrals | HMO · Silver | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Premier + No Referrals | HMO · Silver | Preferred | Accepting new patients |
| AmeriHealth Caritas Next Silver Signature + No Referrals | HMO · Silver | Preferred | Accepting new patients |
Highmark Blue Cross Blue Shield Delaware
Network data as of Sep 8, 2026, as reported by the insurer.
Show all 15 plans from Highmark Blue Cross Blue Shield Delaware
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| my Blue Access Major Events Select PPO Catastrophic 10600 - 3 Free PCP Visits | PPO · Catastrophic | In Network | Accepting new patients |
| my Blue Access Select PPO Bronze 3800 | PPO · Expanded Bronze | In Network | Accepting new patients |
| my Blue Access Select PPO Bronze 3800 + Adult Dental and Vision | PPO · Expanded Bronze | In Network | Accepting new patients |
| my Blue Access Select PPO Bronze 9200 | PPO · Expanded Bronze | In Network | Accepting new patients |
| my Blue Access Select PPO Gold 0 | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Gold 0 + Adult Dental and Vision | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Gold 1700 HSA | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Premier Gold 0 + Adult Dental and Vision | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Premier Platinum 0 + Adult Dental and Vision | PPO · Platinum | In Network | Accepting new patients |
| my Blue Access Select PPO Premier Silver 0 + Adult Dental and Vision | PPO · Silver | In Network | Accepting new patients |
| my Blue Access Select PPO Standard Bronze 7500 | PPO · Expanded Bronze | In Network | Accepting new patients |
| my Blue Access Select PPO Standard Gold 2000 | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Standard Gold 2000 + Adult Dental and Vision | PPO · Gold | In Network | Accepting new patients |
| my Blue Access Select PPO Standard Platinum 0 | PPO · Platinum | In Network | Accepting new patients |
| my Blue Access Select PPO Standard Silver 6000 | PPO · Silver | In Network | 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 P. Mazur 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 P. Mazur is enrolled to bill Medicare as a Practitioner - Infectious Disease (also registered under: Practitioner - Internal Medicine) .
Bills through: Christiana Care Health Services 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
| Gilead Sciences | $12532 |
| Viiv Healthcare Company | $144 |
| E.R. Squibb \u0026 Sons | $54 |
Other
| Promotional Speaking or Service | $8300 |
| Other | $2050 |
| Travel and Lodging | $1694 |
| Food and Beverage | $561 |
| Consulting | $130 |
Studies
Graduated in 1996Additional Specialities
- Internist
Affiliated practices
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Questions & Answers
Has Dr. William Patrick Mazur affiliation with hospitals?
Dr. William Patrick Mazur is affiliated with CHRISTIANA HOSPITAL.
Does Dr. William Patrick Mazur accept patients with AmeriHealth Caritas Next?
Yes, Dr. William Patrick Mazur is listed in-network for AmeriHealth Caritas Next through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Where can you meet with Dr. William Patrick Mazur?
Dr. William Patrick Mazur's office is located at 1400 North Washington Street in Wilmington, DE 19801.
What conditions does Dr. William Patrick Mazur treat?
Dr. William Patrick Mazur provides treatment for Cat Scratch Disease, Common Cold, Diarrhea, Heart Disease, Schistosomiasis, Strep Throat. For the full list see this list.
Does Dr. William Patrick Mazur have affiliation with practices?
Dr. William Patrick Mazur is affiliated with Bayhealth Hospital, Sussex Campus. For the full list of practices see this list.