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

Dr. William Howard Hilfer, MD

Individual provider Internal Medicine Physician · NPI 1194712398

Dr. William Howard Hilfer, MD is an Internal Medicine Physician in Rego Park, New York. Licensed in New York. Registered with an NPI since 2005.

Licensed in
NY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

6404 99th St
Rego Park, NY 11374-2648
Phone: (718) 459-4619
Fax: (718) 459-4753
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 136183 (NY)

Record details

NPI number1194712398
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 3, 2005
Last updated in NPPESJuly 13, 2026

Other providers in Rego Park