ERVIN DENHAM MD
NPI 1881658193
Surgery in Evanston, IL
About Ervin Denham Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERVIN DENHAM MD (NPI 1881658193) is an individual surgery provider in Evanston, Illinois, licensed in Illinois (036103113) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and is a graduate of University Of Louisville School Of Medicine (1993).
NPPES Registry Identity
Specialties & Licenses
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
Ervin Denham 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 Reassignment
Medicare enrollment records show Ervin Denham reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 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 10
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northshore University Healthsystem - Evanston Hospital
Acute Care Hospitals · Evanston, ILSwedish Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Ervin Denham's NPI number?
The NPI number for Ervin Denham is 1881658193. It was assigned to this individual provider in the NPPES registry on April 13, 2006.
Where is Ervin Denham located?
Ervin Denham practices at 1000 Central St Ste 717, Evanston, IL 60201. The listed phone number is (847) 570-1700.
What is Ervin Denham's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Ervin Denham enrolled in Medicare?
Yes. Ervin Denham 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 organization bills Medicare for Ervin Denham's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ervin Denham reassigns Medicare benefits to Endeavor Health Medical Group (Evanston, IL). 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 Ervin Denham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ervin Denham accept?
Health plans from Ambetter Health and Oscar Health list Ervin Denham 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 Ervin Denham affiliated with any hospitals?
According to CMS data, Ervin Denham is affiliated with Northshore University Healthsystem - Evanston Hospital and Swedish Hospital.
When was this NPI record last updated?
The NPPES record for Ervin Denham was last updated on November 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.
# Ervin Denham, MD · NPI 1881658193
Surgery physician in Evanston, Illinois. Individual provider, active in the CMS NPPES registry since April 13, 2006.
## Identity
- **NPI:** 1881658193 (Entity type: Individual)
- **Enumerated:** April 13, 2006
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 036103113 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 CENTRAL ST STE 717, Evanston, IL 60201-1779
- **Phone:** (847) 570-1700 · **Fax:** (847) 503-4360
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Endeavor Health Medical Group (NPI 1497701882, Evanston, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Louisville School Of Medicine, class of 1993
## Record status
- **NPPES last updated:** November 5, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1881658193) · Data from the CMS NPPES public registry.