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

Individual provider Internal Medicine Physician · NPI 1568497824

Dr. William F Grella, MD is an Internal Medicine in Wayne, New Jersey. Qualified in 1997, 29 years ago. Practices with Integrated Hospital Medicine LLC, a 4-clinician group and accepts Medicare assignment. Licensed in New Jersey and New York.

Years since qualifying
29
Licensed in
NJ, NY
In the registry since
2006
Specialties on file
2
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

224 Hamburg Tpke Rm 4023
Wayne, NJ 07470-2111
Phone: (973) 956-3357
Fax: (973) 389-4050
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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 221446 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 25MA07304300 (NJ)

Record details

NPI number1568497824
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 12, 2006
Last updated in NPPESDecember 3, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Integrated Hospital Medicine Llc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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