Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Patrick Mazur, MD

Individual provider Infectious Disease Physician · NPI 1518250828

William Patrick Mazur, MD is an Infectious Disease in Wilmington, Delaware. Qualified in 1996, 30 years ago. Practices with Christiana Care Health Services Inc, a 1,481-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Delaware.

Years since qualifying
30
Licensed in
DE
In the registry since
2011
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1400 N Washington St
Wilmington, DE 19801-1024
Phone: (302) 320-1300
Fax: (302) 320-1374
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence C1-0008683 (DE)

Record details

NPI number1518250828
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 19, 2011
Last updated in NPPESNovember 4, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINFECTIOUS DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Christiana Care Health Services Inc — 1481 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations7 on file with Medicare

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