DR. ENNIS J. DUFFIS M.D.
NPI 1174674295
Psychiatry & Neurology - Neurology in Springfield, MA
About Dr. Ennis J. Duffis M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ENNIS J. DUFFIS M.D. (NPI 1174674295) is an individual neurology provider in Springfield, Massachusetts, licensed in Massachusetts (239113) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Baystate Noble Hospital, and maintains a secondary practice location in Johnson City.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Ennis J. Duffis M.d. 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.
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baystate Noble Hospital
Acute Care Hospitals · Westfield, MABaystate Medical Center
Acute Care Hospitals · Springfield, MAUnited Health Services Hospitals, Inc
Acute Care Hospitals · Binghamton, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01107 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SPRINGFIELD, MA 01107
SPRINGFIELD, MA 01107
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 Ennis Duffis's NPI number?
The NPI number for Ennis Duffis is 1174674295. It was assigned to this individual provider in the NPPES registry on January 16, 2007.
Where is Ennis Duffis located?
Ennis Duffis practices at 3300 Main St 3rd Floor, Suite C&d, Springfield, MA 01107. The listed phone number is (413) 794-5600.
What is Ennis Duffis's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Ennis Duffis enrolled in Medicare?
Yes. Ennis Duffis 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.
What insurance does Ennis Duffis accept?
Health plans from Anthem Blue Cross and Blue Shield list Ennis Duffis 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 Ennis Duffis affiliated with any hospitals?
According to CMS data, Ennis Duffis is affiliated with Baystate Noble Hospital, Baystate Medical Center and United Health Services Hospitals, Inc.
When was this NPI record last updated?
The NPPES record for Ennis Duffis was last updated on March 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
