Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1912976044 Individual Practitioner Female Practitioner

Dr. Marianna Bilis , OD

Optometrist • Chicago, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Marianna Bilis, OD is a certified Optometrist practicing in Chicago, IL. With approximately 30 years of clinical experience since graduating from Illinois College Of Optometry At Chicago in 1996, Dr. Bilis delivers high-quality medical care to the local community at 3500 W PETERSON AVE.

Dr. Bilis is affiliated with Charles S Ovitsky Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient complete exam of visual system, established patient problem focused exam of visual system, new patient complete exam of visual system. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3500 W Peterson Ave
Suite 401

Chicago, IL 606593306

Telephone 7735883090
Fax 7735883210
Associated Practice Facility / Clinic
🏢 Charles Ovitsky Facility NPI 1821049693

Medicare Profile & Education

Medical School

Illinois College Of Optometry At Chicago

Graduation Year

1996

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Chicago, IL

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
30 Yrs +14.4 yrs vs City Avg
City Avg: 15.6 Yrs
State Avg: 22.8 Yrs
Regional Practice Density
633 Specialists

Practicing in Chicago, IL (2783 Statewide)

Telehealth Adoption Rate
0.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
10.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Bilis (30 Years) 30 Yrs
Chicago Specialty Average (15.6 Years) 15.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
92014 Established patient complete exam of visual system
1,719 1,454 $145.00 $133.34
92012 Established patient problem focused exam of visual system
579 503 $105.00 $94.74
92004 New patient complete exam of visual system
511 511 $170.00 $157.69
92002 New patient problem focused exam of visual system
102 102 $110.00 $89.83

Medical Specialties & State Licenses

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License IL 046008924

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
046008924 (IL)
Commercial Insurance / Payer ID Railroad Medicare
P00210269 (IL)

Hospital & Practice Group Affiliations

Charles S Ovitsky Pc

3500 W Peterson Ave, Chicago, IL 606593307

Phone: 7735883090

Charles S Ovitsky Pc

1000 Palm Ave, Mattoon, IL 619386031

Phone: 2172347403

Charles S Ovitsky Pc

2155 Pfingsten Rd, Northbrook, IL 600626427

Phone: 8474806350

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

17 Associated Practitioners
NPI 1144419847

Doctor of Optometry

NPI 1194204578

Doctor of Optometry

NPI 1275780470

Doctor of Optometry

NPI 1336556083

Doctor of Optometry

NPI 1356968176

Doctor of Optometry

Benjamin Meyette

Optometrist

NPI 1417637927

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events
NPI Profile Active March 30, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location March 30, 2017

Registered at 3500 W PETERSON AVE, SUITE 401, CHICAGO, IL 606593306 (Tel: 7735883090)

📍
Updated Business Mailing Address March 30, 2017

Registered at 3917 CHARLIE CT, GLENVIEW, IL 60026 (Tel: 7737921011)

👤
Provider Name / Credentials Updated March 30, 2017

Recorded as MARIANNA BILIS, O.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 30, 2017

Optometrist (License #046008924 in IL)

NPI Profile Active July 09, 2014

NPI status registered as active in NPPES database

📍
Updated Practice Location July 09, 2014

Registered at 6601 N AVONDALE AVE, SUITE 102, CHICAGO, IL 606311567 (Tel: 7737921011)

📍
Updated Business Mailing Address July 09, 2014

Registered at 3917 CHARLIE CT, GLENVIEW, IL 60026 (Tel: 7737921011)

👤
Provider Name / Credentials Updated July 09, 2014

Recorded as MARIANNA BILIS, O.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 09, 2014

Optometrist (License #046008924 in IL)

🟢
Initial NPI Registration & Enumeration March 14, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews
No patient reviews submitted yet for Dr. Marianna Bilis. Be the first to share your experience!

Sign in to leave a review for Dr. Marianna Bilis

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1912976044
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 14, 2006
Last Update: March 30, 2017
Sole Proprietor: No

Mailing Address

3917 Charlie Ct

Glenview, IL 60026

Phone: 7737921011

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.