Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William K Giang

Individual provider Internal Medicine Physician · NPI 1386737518

William K Giang practises Internal Medicine in Bronx, New York. Graduated from New York Medical College in 1991, 35 years ago. Practices with Montefiore Medical Center, a 2,796-clinician group and offers telehealth. Licensed in New York.

Years since qualifying
35
Trained at
New York Medical College
Licensed in
NY
In the registry since
2006
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Practice location Address checks out

3400 Bainbridge Ave
Bronx, NY 10467-2404 Not confirmed with CMS for 16 years — call before visiting
Phone: (718) 920-8888
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 194012 (NY)

Record details

NPI number1386737518
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedOctober 2, 2006
Last updated in NPPESFebruary 1, 2010

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1991 (35 years in practice)
Group practice Montefiore Medical Center — 2796 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients146
Services billed 599 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Montefiore Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2796 clinicians in the practice; 12 are shown here.

Other providers in Bronx