GREGORY A DUMANIAN MD
NPI 1972533388
Surgery - Plastic and Reconstructive Surgery in Chicago, IL
About Gregory A Dumanian Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY A DUMANIAN MD (NPI 1972533388) is an individual plastic and reconstructive surgery provider in Chicago, Illinois, licensed in Illinois (036091634) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and is a graduate of Other (1987).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 and accepts Medicare assignment
Gregory A Dumanian Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Gregory Dumanian reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60707
- Reassigned Medicare billing, Illinois enrollment
- 99 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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.
Areas of Expertise CMS Part B claims 8
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Medicine Mchenry
Acute Care Hospitals · Mchenry, ILNorthwestern Lake Forest Hospital
Acute Care Hospitals · Lake Forest, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILNorthwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60611
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 Gregory Dumanian's NPI number?
The NPI number for Gregory Dumanian is 1972533388. It was assigned to this individual provider in the NPPES registry on July 3, 2006.
Where is Gregory Dumanian located?
Gregory Dumanian practices at 259 E Erie St Ste 20-2060, Chicago, IL 60611. The listed phone number is (312) 695-6022.
What is Gregory Dumanian's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Plastic and Reconstructive Surgery, with taxonomy code 2086S0122X.
Is Gregory Dumanian enrolled in Medicare?
Yes. Gregory Dumanian is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gregory Dumanian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Dumanian reassigns Medicare benefits to 2 organizations: Shriners Hospitals For Children (Chicago, IL) and Northwestern Medical Faculty Foundation (Carol Stream, IL). Each 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 Gregory Dumanian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Dumanian accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and AmeriHealth Caritas Next list Gregory Dumanian 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.
Is Gregory Dumanian affiliated with any hospitals?
According to CMS data, Gregory Dumanian is affiliated with Northwestern Medicine Mchenry, Northwestern Lake Forest Hospital, Northwestern Medicine Central Dupage Hospital and Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Gregory Dumanian was last updated on January 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months 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.