NPPES file of Aug 9, 2026

William Holaday, M.D.

Surgery Physician · Moorestown, NJ

William Holaday, M.D. is a surgery physician with a practice address in Moorestown, New Jersey, and NPI 1851392112, issued on Aug 9, 2005. Check the license (New Jersey 25MA04411100, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851392112
Name
William Holaday
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
25MA04411100 NJ
Self-reported in NPPES; status is on the state search
Practice location
401 Young Ave Ste 375A, Moorestown, NJ 08057
Phone
(856) 291-8920
Enumerated
Aug 9, 2005
Record last updated
Dec 21, 2023
Fax
(856) 291-8922
Medicaid ID
7875509 NJ
Medicare enrollment
Enrolled (PECOS I20040423000977); accepts Medicare assignment
Medical or professional school
Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 1979
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 401 Young Ave Ste 375A

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Samantha Smetaniuk, FNPFamily Nurse Practitioner1336852128

Verify William Holaday in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA04411100
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

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93% fewer Medicare Part D claims than the average surgery physician in 2024

11 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. William Holaday11
  2. Specialty average147

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Virtua Medical Group, PAVoorhees, NJ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Surgery Physician providers in New Jersey

There are 737 surgery physician records in New Jersey.

Other surgery physician records in New Jersey

  1. William Aarons, M.D.Atlantic City, NJ1972551240
  2. Alexander Abkin, MDFlorham Park, NJ1770564742
  3. Claude Abouchedid, MDTrenton, NJ1902981152
  4. Emeka Acholonu, M.DVoorhees, NJ1598944076
  5. Charles Adams, MDHackensack, NJ1366447203
  6. William Adams, MDNeptune, NJ1376522839
  7. Ayotunde Adeyeri, MDHolmdel, NJ1184869737
  8. Adebayo AdunbarinJersey City, NJ1497118368
  9. Justin Ady, M.D.New Brunswick, NJ1558664599
  10. Thomas Ahlborn, M.D.Glen Rock, NJ1801883277

Common questions

What is William Holaday, M.D.'s NPI number?

William Holaday, M.D.'s National Provider Identifier (NPI) is 1851392112, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William Holaday, M.D. located?

The NPPES record lists a practice address at 401 Young Ave Ste 375A, Moorestown, NJ, 08057. Phone: (856) 291-8920. Providers update this record themselves, so call before visiting.

How can I verify William Holaday, M.D.'s license?

NPPES lists New Jersey license number 25MA04411100, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William Holaday, M.D. prescribe under Medicare Part D?

In 2024, William Holaday, M.D. had 11 Medicare Part D claims; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

What is William Holaday, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.