Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Ryan Lange, MD

Individual provider Ophthalmology Physician · NPI 1679997712

Ryan Lange, MD practises Ophthalmology in Evanston, Illinois. Graduated from Johns Hopkins University School of Medicine in 2016, 10 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois and Washington.

Years since qualifying
10
Trained at
Johns Hopkins University School of Medicine
Licensed in
IL, WA
In the registry since
2014
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1630 Sherman Ave Ste 100
Evanston, IL 60201-3711
Phone: (847) 535-6464
Fax: (224) 271-4870
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 600 N Wolfe St, Baltimore, MD 21287-2109 — (410) 955-5000
  • 1101 Madison St Ste 600, Seattle, WA 98104-1340 — (206) 215-2020

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 036159002 (IL)
Ophthalmology Physician Taxonomy 207W00000X · Licence MD61043249 (WA)

Record details

NPI number1679997712
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 10, 2014
Last updated in NPPESApril 28, 2022
Certification dateApril 28, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Cataract surgery 51 times · 64th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients459
Services billed 1,020 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Northwestern Medical Faculty Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 4394 clinicians in the practice; 12 are shown here.

Other providers in Evanston