DONALD LEI MD
NPI 1497331201
Dermatology in Chicago, IL
About Donald Lei Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DONALD LEI MD (NPI 1497331201) is an individual dermatology provider in Chicago, Illinois, licensed in Illinois (036-174245) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Rush Oak Park Hospital, and maintains a secondary practice location in New York.
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 and accepts Medicare assignment
Donald Lei 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 Donald Lei reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush University Medical Group
- 2,169 clinicians in this Medicare group
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- 548 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Rush Oak Park Hospital
Acute Care Hospitals · Oak Park, ILRush University Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60707 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 7
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 Donald Lei's NPI number?
The NPI number for Donald Lei is 1497331201. It was assigned to this individual provider in the NPPES registry on March 22, 2021.
Where is Donald Lei located?
Donald Lei practices at 1625 N Harlem Ave, Chicago, IL 60707. The listed phone number is (312) 947-7546.
What is Donald Lei's specialty?
The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.
Is Donald Lei enrolled in Medicare?
Yes. Donald Lei 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 Donald Lei's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Donald Lei reassigns Medicare benefits to 2 organizations: Rush University Medical Center (Oak Brook, IL) and Rush Medical Group (Chicago, 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 Donald Lei's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Donald Lei accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Donald Lei 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 Donald Lei affiliated with any hospitals?
According to CMS data, Donald Lei is affiliated with Rush Oak Park Hospital and Rush University Medical Center.
When was this NPI record last updated?
The NPPES record for Donald Lei was last updated on July 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Donald Lei, MD · NPI 1497331201
Dermatology physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since March 22, 2021.
## Identity
- **NPI:** 1497331201 (Entity type: Individual)
- **Enumerated:** March 22, 2021
- **Primary specialty:** Dermatology · taxonomy 207N00000X
- **State license:** 036-174245 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1625 N HARLEM AVE, Chicago, IL 60707-4303
- **Phone:** (312) 947-7546
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Rush University Medical Center (NPI 1801375696, Oak Brook, IL); Rush Medical Group (NPI 1467312850, Chicago, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Chicago, Pritzker School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** July 8, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1497331201) · Data from the CMS NPPES public registry.