DR. JOHN J. IWUC M.D.
NPI 1851332498
Psychiatry & Neurology - Psychiatry in Worcester, MA
About Dr. John J. Iwuc M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN J. IWUC M.D. (NPI 1851332498) is an individual psychiatry provider in Worcester, Massachusetts, licensed in Massachusetts (54032) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Worcester.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. John J. Iwuc M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Iwuc reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Worcester, MA 01604
- Reassigned Medicare billing, Massachusetts enrollment
- 59 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01604 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WORCESTER, MA 01604
WORCESTER, MA 01604
WORCESTER, MA 01604
WORCESTER, MA 01604
WORCESTER, MA 01604
WORCESTER, MA 01604
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Iwuc's NPI number?
The NPI number for John Iwuc is 1851332498. It was assigned to this individual provider in the NPPES registry on June 8, 2006.
Where is John Iwuc located?
John Iwuc practices at 305 Belmont Street Worcester State Hospital, Worcester, MA 01604. The listed phone number is (508) 368-3752.
What is John Iwuc's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is John Iwuc enrolled in Medicare?
Yes. John Iwuc is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Iwuc's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Iwuc reassigns Medicare benefits to The Commonwealth Of Massachusetts (Worcester, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Iwuc's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Iwuc accept?
Health plans from Taro Health list John Iwuc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for John Iwuc was last updated on January 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. John J. Iwuc, M.D. · NPI 1851332498
Psychiatry physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since June 8, 2006.
## Identity
- **NPI:** 1851332498 (Entity type: Individual)
- **Enumerated:** June 8, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 54032 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 305 BELMONT STREET, WORCESTER STATE HOSPITAL, Worcester, MA 01604
- **Phone:** (508) 368-3752
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** The Commonwealth Of Massachusetts (NPI 1275680456, Worcester, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 23, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1851332498) · Data from the CMS NPPES public registry.