John J. Iwuc, M.D.
Psychiatry Physician · Worcester, MA
John J. Iwuc, M.D. is a psychiatry physician with a practice address in Worcester, Massachusetts, and NPI 1851332498, issued on Jun 8, 2006. Check the license (Massachusetts 54032, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John J. Iwuc
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 54032 MA
Self-reported in NPPES; status is on the state search - Practice location
- 305 Belmont Street, Worcester, MA 01604
- Phone
- (508) 368-3752
- Enumerated
- Jun 8, 2006
- Record last updated
- Jan 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 305 Belmont Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nina Benjamin, LICSWClinical Social Worker1073843520
- John Cox, LICSWClinical Social Worker1942530100
- Gerard Croteau, LICSWClinical Social Worker1376873810
- Joel Match, PH.D.Psychologist1588712251
- Bruce Meltzer, M.D.Child & Adolescent Psychiatry Physician1952466724
- Nelly Nabokin, M.D.Psychiatry Physician1477511061
Verify John J. Iwuc in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 54032Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John J. Iwuc among 2,736 psychiatry physician records in Massachusetts
John J. Iwuc, M.D. is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 51% newer
- In a Medicare fileNo · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
133 psychiatry physician records list a practice address in Worcester
They are 133 of the 13,166 NPPES records with a practice address in Worcester, and 2,736 psychiatry physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,736 in Massachusetts → Every provider in Worcester → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Mohamad Bahnassi, M.D.Worcester, MA 016041487754974
- Allison Beckler, D,O.Worcester, MA 016041265726558
- Madelyn Hicks, M.D.Worcester, MA 016041184920217
- Richard Listerud, M.D.Worcester, MA 016041487635165
- Boris Lorberg, M.D.Worcester, MA 016041518980879
- Ashley Maclean, M.D.Worcester, MA 016041750723615
- Nelly Nabokin, M.D.Worcester, MA 016041477511061
- Paul Noroian, M.D.Worcester, MA 016041437161296
Common questions
What is John J. Iwuc, M.D.'s NPI number?
John J. Iwuc, M.D.'s National Provider Identifier (NPI) is 1851332498, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John J. Iwuc, M.D. located?
The NPPES record lists a practice address at 305 Belmont Street, Worcester, MA, 01604. Phone: (508) 368-3752. Providers update this record themselves, so call before visiting.
How can I verify John J. Iwuc, M.D.'s license?
NPPES lists Massachusetts license number 54032, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.