NPPES file of Aug 9, 2026

Gilbert Siu, D.O., PH.D.

Hospitalist Physician · Vineland, NJ

Gilbert Siu, D.O., PH.D. is a hospitalist physician with a practice address in Vineland, New Jersey, and NPI 1801062443, issued on May 4, 2008. Check the license (New Jersey 25MB08919200, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801062443
Name
Gilbert Siu
Credential
D.O., PH.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License numbers
25MB08919200 NJ
OT012043 PA
Self-reported in NPPES; status is on the state search
Practice location
1237 W Sherman Ave, Vineland, NJ 08360
Phone
(856) 566-7010
Enumerated
May 4, 2008
Record last updated
Aug 30, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(856) 566-6956
Medicare enrollment
Enrolled (PECOS I20110831000274); accepts Medicare assignment
Medical or professional school
Rowan University School Of Osteopathic Medicine, 2007
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 1237 W Sherman Ave

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

  1. Charles Francis, PTPhysical Therapist1508636119
  2. Melissa Gildein, MPTPhysical Therapist1073636346
  3. Nicole Kremer, PSYDClinical Psychologist1073668026
  4. Todd Mingin, DOPhysical Medicine & Rehabilitation Physician1801241708
  5. Eugenio Rocksmith, M.D.Neurology Physician1225172554
  6. Lulu Stowers, PHYSICAL THERAPISTPhysical Therapist1134241052

Verify Gilbert Siu 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 25MB08919200
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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98% fewer Medicare Part D claims than the average hospitalist physician in 2024

12 Medicare Part D claims for 11 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Gilbert Siu12
  2. Specialty average521

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.

Industry payments in 2024: $30.51

2 payments; by number, the most common kind was food and beverage; the largest payer was Ipsen Biopharmaceuticals, Inc. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gilbert Siu$30.51
  2. Specialty average$494.84

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Ipc Hospitalist Physicians OF New Jersey PCRed Bank, NJ

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

Gilbert Siu among 644 hospitalist physician records in New Jersey

Gilbert Siu, D.O., PH.D. is one of 644 hospitalist physician records with a practice address in New Jersey. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 20% of them.

  • NPI issued2008 · 20% of these records are older, 75% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 88% of these records are
  • Graduated2007 · median 2013 among the 565 with a school on file
  • Record last updated2011 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in New Jersey

There are 644 hospitalist physician records in New Jersey.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Natallia Breibart, D.O.Vineland, NJ 083601487009114
  2. Desrene CrossVineland, NJ 083601164370094
  3. Laila Dadvand, M.D., PH.D.Vineland, NJ 083601497071732
  4. Kanika Gupta, M.D.Vineland, NJ 083601821475898
  5. Shannon Harrington, D.O.Vineland, NJ 083601306290978
  6. Judith Hunt, M.D.Vineland, NJ 083601366470320
  7. Chand Marvania, DOVineland, NJ 083601326500372
  8. Anita Nathan, M.D.Vineland, NJ 083601528479359

Common questions

What is Gilbert Siu, D.O., PH.D.'s NPI number?

Gilbert Siu, D.O., PH.D.'s National Provider Identifier (NPI) is 1801062443, issued on May 4, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Gilbert Siu, D.O., PH.D. located?

The NPPES record lists a practice address at 1237 W Sherman Ave, Vineland, NJ, 08360. Phone: (856) 566-7010. Providers update this record themselves, so call before visiting.

How can I verify Gilbert Siu, D.O., PH.D.'s license?

NPPES lists New Jersey license number 25MB08919200, 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 Gilbert Siu, D.O., PH.D. prescribe under Medicare Part D?

In 2024, Gilbert Siu, D.O., PH.D. had 12 Medicare Part D claims for 11 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.

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.