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

William Xuan Nghiem, MD

Individual provider Vascular & Interventional Radiology Physician · NPI 1851559223

William Xuan Nghiem, MD is an Interventional Radiology in Germantown, Maryland. Graduated from Temple University School of Medicine in 2008, 18 years ago. Practices with Horizon Surgical Group PA, an 8-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
18
Trained at
Temple University School of Medicine
Licensed in
MD
In the registry since
2008
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

20410 Observation Dr Ste 104
Germantown, MD 20876-3201
Phone: (301) 212-4264
Show map & directions

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

Specialties & licences

Vascular & Interventional Radiology Physician (primary) Taxonomy 2085R0204X · Licence D78132 (MD)

Record details

NPI number1851559223
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 1, 2008
Last updated in NPPESJune 26, 2015

Medicare enrollment

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

Medicare specialtyINTERVENTIONAL RADIOLOGY
Medical schoolTEMPLE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Horizon Surgical Group Pa — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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