ERNST ROBERT LENGYEL MD
NPI 1447296306
Obstetrics & Gynecology - Gynecologic Oncology in Chicago, IL
About Ernst Robert Lengyel Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERNST ROBERT LENGYEL MD (NPI 1447296306) is an individual gynecologic oncology provider in Chicago, Illinois, licensed in Illinois (036110536) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and is a graduate of Other (1992).
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
Ernst Robert Lengyel 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
4Medicare enrollment records show Ernst Lengyel reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 1,905 clinicians in this Medicare group
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 2,237 clinicians in this Medicare group
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 clinicians in this Medicare group
Arlington Heights, IL 60005
- Reassigned Medicare billing, Illinois enrollment
- 346 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 2
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.
The University Of Chicago Medical Center
Acute Care Hospitals · Chicago, ILIngalls Memorial Hospital
Acute Care Hospitals · Harvey, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60637 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.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
CHICAGO, IL 60637
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 Ernst Lengyel's NPI number?
The NPI number for Ernst Lengyel is 1447296306. It was assigned to this individual provider in the NPPES registry on June 21, 2006.
Where is Ernst Lengyel located?
Ernst Lengyel practices at 5841 S Maryland Ave, Chicago, IL 60637. The listed phone number is (888) 824-0200.
What is Ernst Lengyel's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.
Is Ernst Lengyel enrolled in Medicare?
Yes. Ernst Lengyel 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 Ernst Lengyel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ernst Lengyel reassigns Medicare benefits to 4 organizations: The University Of Chicago Medical Center (Chicago, IL), University Of Chicago (Chicago, IL), Endeavor Health Medical Group (Evanston, IL) and Northwest Community Health Services Inc (Arlington Heights, 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 Ernst Lengyel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ernst Lengyel accept?
Health plans from Oscar Health list Ernst Lengyel 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 Ernst Lengyel affiliated with any hospitals?
According to CMS data, Ernst Lengyel is affiliated with The University Of Chicago Medical Center and Ingalls Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Ernst Lengyel was last updated on January 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Ernst Robert Lengyel, MD · NPI 1447296306
Gynecologic Oncology physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since June 21, 2006.
## Identity
- **NPI:** 1447296306 (Entity type: Individual)
- **Enumerated:** June 21, 2006
- **Primary specialty:** Obstetrics & Gynecology - Gynecologic Oncology · taxonomy 207VX0201X
- **State license:** 036110536 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 5841 S MARYLAND AVE, Chicago, IL 60637-1443
- **Phone:** (888) 824-0200
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): The University Of Chicago Medical Center (NPI 1033218128, Chicago, IL); University Of Chicago (NPI 1821048786, Chicago, IL); Endeavor Health Medical Group (NPI 1497701882, Evanston, IL); Northwest Community Health Services Inc (NPI 1467057513, Arlington Heights, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** January 3, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1447296306) · Data from the CMS NPPES public registry.