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

Q: 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.

Q: What is Brenda Bohnsack's specialty?

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

Q: 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.

Active since June 01, 2007PECOS EnrolledAccepts Medicare Assignment

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: October 18, 2026.

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

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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, is affiliated with Ann & Robert H Lurie Childrens Hospital Of Chicago, and is a graduate of Baylor College Of Medicine (2006).

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

Medical School CMSBaylor College Of MedicineGraduated 2006

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

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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

Brenda Lynn Bohnsack M.d., Phd 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.

PECOS PAC ID7517151665

PECOS Enrollment IDI20210707002933

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.

Medicare Billing Reassignments

Medicare enrollment records show Brenda Bohnsack reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lurie Children's Medical Group Inc

Same address

Pediatrics

225 E CHICAGO AVE
Chicago, IL 60611

Reassigned Medicare billing, Illinois enrollment
826 clinicians in this Medicare group

NPI 1518064716 (312) 227-6412

Lurie Childrens Surgical Foundation Inc

Same address

Pediatric Surgery

225 E CHICAGO AVE
Chicago, IL 60611

Reassigned Medicare billing, Illinois enrollment
14 clinicians in this Medicare group

NPI 1356822050 (800) 543-7362

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.

Ann & Robert H Lurie Childrens Hospital Of Chicago

Childrens · Chicago, IL

OwnershipVoluntary non-profit - Private

CMS Certification Number143300

Location225 E Chicago Ave, Box 140Chicago, IL 60611 · Cook County

Emergency services

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