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

William Holaday, MD

Individual provider Surgery Physician · NPI 1851392112

William Holaday, MD practises General Surgery in Moorestown, New Jersey. Graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1979, 47 years ago. Practices with Virtua Medical Group, PA, a 1,669-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
47
Trained at
Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Licensed in
NJ
In the registry since
2005
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

401 Young Ave Ste 375A
Moorestown, NJ 08057-3130
Phone: (856) 291-8920
Fax: (856) 291-8922
Show map & directions

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

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 25MA04411100 (NJ)

Record details

NPI number1851392112
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 9, 2005
Last updated in NPPESDecember 21, 2023
Certification dateDecember 21, 2023

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolCLVLND CLINIC LERNER COLLEGE OF MED OF CASE WSTN RSV UNIVERSITY
Graduated 1979 (47 years in practice)
Group practice Virtua Medical Group, Pa — 1669 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Mastectomy 39 times · 91st percentile
Melanoma (skin cancer) excision 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients130
Services billed 227 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. Those with a page here are linked.

  • Virtua Willingboro Hospital Hospital · Willingboro, NJ · listed as Virtua Willingboro Hospital Inc
  • Virtua Mount Holly Hospital Hospital · Mount Holly, NJ
  • West Jersey Hospital Hospital · Voorhees, NJ

Colleagues at Virtua Medical Group, PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1669 clinicians in the practice; 12 are shown here.

Other providers in Moorestown