RYAN LANGE MD
NPI 1679997712
Ophthalmology in Evanston, IL
About Ryan Lange Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RYAN LANGE MD (NPI 1679997712) is an individual ophthalmology provider in Evanston, Illinois, licensed in Illinois (036159002) and active in the NPI registry since February 2014. He is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Ryan Lange 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 Ryan Lange reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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 15
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Memorial 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 2
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 Ryan Lange's NPI number?
The NPI number for Ryan Lange is 1679997712. It was assigned to this individual provider in the NPPES registry on February 10, 2014.
Where is Ryan Lange located?
Ryan Lange practices at 1630 Sherman Ave Ste 100, Evanston, IL 60201. The listed phone number is (847) 535-6464.
What is Ryan Lange's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Ryan Lange enrolled in Medicare?
Yes. Ryan Lange 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 Ryan Lange's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Lange reassigns Medicare benefits to Northwestern Medical Faculty Foundation (Carol Stream, 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 Ryan Lange's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ryan Lange affiliated with any hospitals?
According to CMS data, Ryan Lange is affiliated with Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Ryan Lange was last updated on April 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Ryan Lange, MD · NPI 1679997712
Ophthalmology physician in Evanston, Illinois. Individual provider, active in the CMS NPPES registry since February 10, 2014.
## Identity
- **NPI:** 1679997712 (Entity type: Individual)
- **Enumerated:** February 10, 2014
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 036159002 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1630 SHERMAN AVE STE 100, Evanston, IL 60201-3711
- **Phone:** (847) 535-6464 · **Fax:** (224) 271-4870
## 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:** Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** April 28, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1679997712) · Data from the CMS NPPES public registry.