1. Home
  2. Directory
  3. Illinois
  4. Chicago
  5. Ophthalmology
  6. NPI Profile

BRENDA LYNN BOHNSACK M.D., PHD
NPI 1811199953
Ophthalmology in Chicago, IL

Active since June 01, 2007PECOS Enrolled
225 E CHICAGO AVE, CHICAGO, IL 60611(312) 227-6728 Get Directions Write a Review

NPPES record last updated: January 8, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 24, 2021, Jul 29, 2020, May 28, 2019 (3 updates tracked since 2019).

About Brenda Lynn Bohnsack M.d., Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BRENDA LYNN BOHNSACK M.D., PHD (NPI 1811199953) is an individual ophthalmology provider in Chicago, Illinois, licensed in Michigan (4301088483) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811199953
Entity TypeIndividualFemale
Primary Taxonomy207W00000X
Provider Legal NameBRENDA LYNN BOHNSACKCredential: M.D., PHD
Location Address225 E CHICAGO AVEChicago, IL 60611-2991
Mailing Address225 E Chicago AveChicago, IL 60611-2991 · (312) 227-6728
Phone(312) 227-6728
Sole ProprietorNo
Enumeration DateJune 1, 2007
Last NPPES UpdateJanuary 8, 20243 updates tracked since enumeration
NPPES CertifiedJanuary 8, 2024
✔ NPI 1811199953 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Licenses✔ Licensed in MI · 4301088483✔ Licensed in IL · 036.152635
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
225 E CHICAGO AVE, Chicago, IL 60611
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Wyoming.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Brenda Lynn Bohnsack M.d., Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60611 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

BESSEY ELIZABETH JOSE GEEVARGHESE DO
Pediatrics
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (630) 933-6631
CHRISTINA SOOJIN KIM M.D.
Pediatrics
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (443) 928-7458
JESSICA LAUREN OFFENBACH APN
Nurse Practitioner (Pediatrics)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
MS. JENNY KO LEE APN
Nurse Practitioner (Neonatal)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (847) 962-6268
ERIN COHEN MD
Pediatrics (Hospice and Palliative Medicine)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
DR. JOSEPH HART COLLINS MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-3550
ALEXIS LYN HARMON
Student in an Organized Health Care Education/Training Program
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
SHANNON JULIA CONWAY MD
Student in an Organized Health Care Education/Training Program
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000

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 Brenda Bohnsack's NPI number?

The NPI number for Brenda Bohnsack is 1811199953. It was assigned to this individual provider in the NPPES registry on June 1, 2007.

Where is Brenda Bohnsack located?

Brenda Bohnsack practices at 225 E Chicago Ave, Chicago, IL 60611. The listed phone number is (312) 227-6728.

What is Brenda Bohnsack's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Brenda Bohnsack enrolled in Medicare?

Yes. Brenda Bohnsack is registered in the Medicare PECOS enrollment system.

What insurance does Brenda Bohnsack accept?

Health plans from Blue Cross Blue Shield of Wyoming list Brenda Bohnsack 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.

When was this NPI record last updated?

The NPPES record for Brenda Bohnsack was last updated on January 8, 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.