ALAN LI MD
NPI 1902474604
Psychiatry & Neurology - Neurology in Downers Grove, IL
About Alan Li Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALAN LI MD (NPI 1902474604) is an individual neurology provider in Downers Grove, Illinois, licensed in Illinois (036-180170) and active in the NPI registry since June 2021. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Hospital Rochester, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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
Alan Li 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 Alan Li reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- 4,870 clinicians in this Medicare group
Rochester, MN 55905
- Reassigned Medicare billing, Minnesota enrollment
- 6,534 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mayo Clinic Hospital Rochester
Acute Care Hospitals · Rochester, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60515 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DOWNERS GROVE, IL 60515
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 Alan Li's NPI number?
The NPI number for Alan Li is 1902474604. It was assigned to this individual provider in the NPPES registry on June 17, 2021.
Where is Alan Li located?
Alan Li practices at 3743 Highland Ave Ste 1001, Downers Grove, IL 60515. The listed phone number is (847) 723-4088.
What is Alan Li's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Alan Li enrolled in Medicare?
Yes. Alan Li 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 Alan Li's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alan Li reassigns Medicare benefits to 2 organizations: Advocate Health And Hospitals Corporation (Downers Grove, IL) and Mayo Clinic (Rochester, MN). 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 Alan Li's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alan Li accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Alan Li 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 Alan Li affiliated with any hospitals?
According to CMS data, Alan Li is affiliated with Mayo Clinic Hospital Rochester.
When was this NPI record last updated?
The NPPES record for Alan Li was last updated on September 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 60 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.
# Alan Li, MD · NPI 1902474604
Neurology physician in Downers Grove, Illinois. Individual provider, active in the CMS NPPES registry since June 17, 2021.
## Identity
- **NPI:** 1902474604 (Entity type: Individual)
- **Enumerated:** June 17, 2021
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 036-180170 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 3743 HIGHLAND AVE STE 1001, Downers Grove, IL 60515-1594
- **Phone:** (847) 723-4088 · **Fax:** (630) 963-9936
## 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): Advocate Health And Hospitals Corporation (NPI 1285903849, Downers Grove, IL); Mayo Clinic (NPI 1114343860, Rochester, MN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** September 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1902474604) · Data from the CMS NPPES public registry.