Active NPI 1689666885 Individual Practitioner Male Practitioner

Dr. Michael A Grassi , MD

Ophthalmology • Naperville, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Michael Grassi, MD is a certified Ophthalmology practicing in Naperville, IL. With approximately 27 years of clinical experience since graduating from Northwestern University Feinberg Medical School in 1999, Dr. Grassi delivers high-quality medical care to the local community at 1012 95TH ST STE 9.

Dr. Grassi accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, aflibercept, 1 mg, imaging of retina, injection of drug into eye. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1012 95th St Ste 9

Naperville, IL 605645040

Telephone 6309953465

Fax 6309953622

Associated Practice Facility / Clinic

🏢 Grassi Retina Md Sc Facility NPI 1598121113

Medicare Profile & Education

Medical School

Northwestern University Feinberg Medical School

Graduation Year

1999

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Naperville, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

27 Yrs +3.3 yrs vs City Avg

City Avg: 23.7 Yrs

State Avg: 31.1 Yrs

Regional Practice Density

13 Specialists

Practicing in Naperville, IL (954 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Grassi (27 Years) 27 Yrs

Naperville Specialty Average (23.7 Years) 23.7 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
J0178 Injection, aflibercept, 1 mg	1,990	130	$1957.79	$822.11
92134 Imaging of retina	1,740	437	$135.00	$41.27
67028 Injection of drug into eye	1,000	144	$609.00	$134.03
92083 Exam of visual field with extended testing	649	356	$205.00	$62.79
99213 Established patient office or other outpatient visit, typically 15 minutes	616	268	$240.00	$97.61
76512 Ultrasound of eye disease, growth, or structure	364	117	$207.14	$51.29
92235 Exam of retinal blood vessels using a special camera after injection of a dye	356	193	$295.00	$173.45
92012 Established patient problem focused exam of visual system	224	76	$280.00	$96.64
J9035 Injection, bevacizumab, 10 mg	224	69	$300.00	$67.85
92201 Extended exam of the back part of the eye with retinal drawing	177	86	$80.00	$26.04
92014 Established patient complete exam of visual system	157	138	$400.00	$134.03
92240 Exam of blood vessels between the white part of eye and retina using a special camera after injection of a dye	130	100	$665.00	$205.04
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	111	111	$530.00	$180.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	46	35	$350.00	$139.99
92274 Measurement of retinal and optic nerve function targeting multiple separate locations	39	32	$300.00	$90.55
67145 Photocoagulation treatment to prevent detachment of retina	21	12	$1700.00	$246.00
92004 New patient complete exam of visual system	17	17	$480.00	$160.97
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	16	16	$450.00	$137.69
92284 Evaluation of eye adaptation to light and dark with interpretation and report	14	14	$200.00	$32.89
92283 Extended color vision examination	14	14	$218.22	$49.56
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	12	12	$665.00	$240.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0178 Injection, aflibercept, 1 mg	1,274	93	$1500.00	$850.95
92134 Imaging of retina	1,234	244	$135.00	$40.71
67028 Injection of drug into eye	1,123	121	$603.74	$128.84
J9035 Injection, bevacizumab, 10 mg	709	88	$300.00	$69.15
92083 Exam of visual field with extended testing	693	313	$205.00	$60.02
99213 Established patient office or other outpatient visit, typically 15 minutes	611	220	$240.00	$94.42
92250 Photography of the retina	600	309	$165.00	$35.43
76512 Ultrasound of eye disease, growth, or structure	410	112	$200.00	$47.87
92235 Exam of retinal blood vessels using a special camera after injection of a dye	378	171	$295.00	$142.31
92012 Established patient problem focused exam of visual system	260	60	$280.00	$94.47
92201 Extended exam of the back part of the eye with retinal drawing	229	101	$80.00	$25.23
92014 Established patient complete exam of visual system	192	154	$400.00	$131.11
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	115	115	$530.00	$175.74
92240 Exam of blood vessels between the white part of eye and retina using a special camera after injection of a dye	101	79	$665.00	$204.04
92274 Measurement of retinal and optic nerve function targeting multiple separate locations	36	29	$300.00	$89.92
67145 Photocoagulation treatment to prevent detachment of retina	15	12	$1700.00	$229.32
92283 Extended color vision examination	11	11	$113.76	$48.04
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	11	11	$450.00	$133.05
92284 Evaluation of eye adaptation to light and dark with interpretation and report	11	11	$200.00	$40.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	1,168	233	$135.00	$42.26
67028 Injection of drug into eye	1,024	111	$574.22	$129.03
J9035 Injection, bevacizumab, 10 mg	916	105	$300.00	$67.44
92083 Exam of visual field with extended testing	618	277	$205.00	$61.50
J0178 Injection, aflibercept, 1 mg	574	32	$1500.00	$899.51
99213 Established patient office or other outpatient visit, typically 15 minutes	520	193	$240.00	$96.55
92250 Photography of the retina	508	265	$165.00	$36.00
76512 Ultrasound of eye disease, growth, or structure	350	105	$200.00	$49.11
92235 Exam of retinal blood vessels using a special camera after injection of a dye	321	163	$295.00	$133.18
92012 Established patient problem focused exam of visual system	243	59	$280.00	$95.54
92014 Established patient complete exam of visual system	168	137	$400.00	$134.67
92201 Extended exam of the back part of the eye with retinal drawing	162	79	$80.00	$26.08
92240 Exam of blood vessels between the white part of eye and retina using a special camera after injection of a dye	124	81	$665.00	$211.00
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	98	98	$530.00	$177.89
92274 Measurement of retinal and optic nerve function targeting multiple separate locations	31	27	$300.00	$88.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	20	$350.00	$136.52
67145 Photocoagulation treatment to prevent detachment of retina	19	13	$1700.00	$257.94

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J9035 Injection, bevacizumab, 10 mg	1,077	90	$300.00	$71.32
92134 Imaging of retina	941	162	$135.00	$43.16
67028 Injection of drug into eye	931	93	$500.00	$132.46
92083 Exam of visual field with extended testing	563	254	$205.00	$62.26
92250 Photography of the retina	497	260	$165.00	$38.18
99213 Established patient office or other outpatient visit, typically 15 minutes	399	149	$240.00	$97.81
92235 Exam of retinal blood vessels using a special camera after injection of a dye	339	155	$295.00	$126.13
76512 Ultrasound of eye disease, growth, or structure	239	82	$200.00	$50.34
92012 Established patient problem focused exam of visual system	204	52	$280.00	$96.86
92014 Established patient complete exam of visual system	152	123	$400.00	$136.04
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	95	95	$530.00	$179.53
92240 Exam of blood vessels between the white part of eye and retina using a special camera after injection of a dye	93	65	$665.00	$222.07
92201 Extended exam of the back part of the eye with retinal drawing	80	49	$80.00	$26.42
92274 Measurement of retinal and optic nerve function targeting multiple separate locations	32	29	$300.00	$89.31
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	13	$350.00	$139.63
92283 Extended color vision examination	12	12	$113.76	$51.39
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	12	12	$450.00	$143.04
92284 Evaluation of eye adaptation to light and dark with interpretation and report	12	12	$200.00	$54.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J9035 Injection, bevacizumab, 10 mg	698	76	$300.00	$76.72
67028 Injection of drug into eye	614	76	$510.59	$112.56
92134 Imaging of retina	600	120	$135.00	$42.14
92012 Established patient problem focused exam of visual system	426	125	$280.00	$92.38
92083 Exam of visual field with extended testing	405	193	$205.00	$61.24
92250 Photography of the retina	370	204	$165.00	$42.65
92235 Exam of retinal blood vessels using a special camera after injection of a dye	244	120	$295.00	$108.55
76512 Ultrasound of eye disease, growth, or structure	176	60	$200.00	$53.05
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	84	84	$530.00	$175.88
92014 Established patient complete exam of visual system	74	65	$400.00	$133.58
92201 Extended exam of the back part of the eye with retinal drawing	70	36	$80.00	$26.65
92240 Exam of blood vessels between the white part of eye and retina using a special camera after injection of a dye	63	41	$665.00	$215.99
92274 Measurement of retinal and optic nerve function targeting multiple separate locations	28	27	$300.00	$85.99
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	17	$350.00	$115.53
92284 Evaluation of eye adaptation to light and dark with interpretation and report	11	11	$200.00	$54.81
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	11	11	$450.00	$139.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	564	115	$168.88	$41.78
67028 Injection of drug into eye	522	69	$589.08	$115.23
J0178 Injection, aflibercept, 1 mg	442	36	$1500.00	$943.91
92012 Established patient problem focused exam of visual system	398	127	$203.49	$92.28
92083 Exam of visual field with extended testing	382	173	$255.98	$60.86
92250 Photography of the retina	337	171	$153.84	$47.29
J9035 Injection, bevacizumab, 10 mg	293	62	$300.00	$78.76
92235 Exam of retinal blood vessels using a special camera after injection of a dye	249	128	$283.43	$93.38
76512 Ultrasound of eye disease, growth, or structure	194	60	$233.40	$60.10
92274 Measurement of retinal and optic nerve function targeting multiple separate locations	79	77	$406.33	$92.35
92226 Examination of eye by ophthalmoscope with retinal drawing	77	23	$66.82	$26.55
92240 Exam of blood vessels between the white part of eye and retina using a special camera after injection of a dye	69	49	$610.00	$217.68
92014 Established patient complete exam of visual system	68	62	$306.18	$132.24
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	65	65	$384.92	$173.38
92225 Examination of eye by ophthalmoscope with retinal drawing	33	17	$70.61	$28.71
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	15	$235.29	$113.85
92284 Evaluation of eye adaptation to light and dark with interpretation and report	11	11	$186.36	$55.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0178 Injection, aflibercept, 1 mg	694	37	$1500.00	$953.04
92134 Imaging of retina	581	96	$200.00	$43.07
67028 Injection of drug into eye	534	56	$534.08	$115.96
92012 Established patient problem focused exam of visual system	340	124	$130.00	$91.58
92083 Exam of visual field with extended testing	293	130	$300.00	$60.63
92250 Photography of the retina	279	138	$145.00	$53.16
92235 Exam of retinal blood vessels using a special camera after injection of a dye	216	107	$275.00	$86.36
J9035 Injection, bevacizumab, 10 mg	212	43	$349.53	$76.27
76512 Ultrasound of eye disease, growth, or structure	171	51	$260.00	$73.83
92275 Recording of retinal electrical responses to external stimuli	125	96	$450.00	$154.71
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	56	56	$300.00	$173.82
92240 Exam of blood vessels between the white part of eye and retina using a special camera after injection of a dye	55	36	$550.00	$221.29
92226 Examination of eye by ophthalmoscope with retinal drawing	37	13	$45.00	$26.15
92225 Examination of eye by ophthalmoscope with retinal drawing	32	17	$50.00	$28.31
92284 Evaluation of eye adaptation to light and dark with interpretation and report	31	28	$170.00	$59.69
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	18	$200.00	$112.91

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92134 Imaging of retina	567	83	$200.00	$42.37
67028 Injection of drug into eye	482	49	$450.71	$114.10
J9035 Injection, bevacizumab, 10 mg	405	42	$300.00	$73.20
J0178 Injection, aflibercept, 1 mg	278	12	$1500.00	$962.71
92012 Established patient problem focused exam of visual system	220	85	$130.00	$89.15
92250 Photography of the retina	189	105	$145.00	$67.22
92235 Exam of retinal blood vessels using a special camera after injection of a dye	145	72	$347.07	$80.64
92083 Exam of visual field with extended testing	142	94	$312.68	$60.27
76512 Ultrasound of eye disease, growth, or structure	98	31	$260.00	$90.55
92275 Recording of retinal electrical responses to external stimuli	51	49	$450.00	$152.08
92242 Exam of retinal blood vessels and blood vessels between the white part of eye and retina using a special camera after injection of a dye	35	27	$895.71	$237.88
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	32	24	$200.00	$112.51
92240 Exam of blood vessels between the white part of eye and retina using a special camera after injection of a dye	27	24	$550.00	$218.03
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	22	22	$300.00	$173.32
92004 New patient complete exam of visual system	16	16	$265.00	$155.23

Medical Specialties & State Licenses

CMS Verified: 2025-03-10

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License IL 036115845

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.

Ophthalmology - Retina Specialist

NUCC Taxonomy Code: 207WX0107X

State License IL 036115845

An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.

Career & Practice History Timeline

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

11 Historical Events

✅

NPI Profile Active November 02, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location November 02, 2017

Registered at 1012 95TH ST STE 9, NAPERVILLE, IL 605645040 (Tel: 6309953465)

📍

Updated Business Mailing Address November 02, 2017

Registered at 1012 95TH ST STE 9, NAPERVILLE, IL 605645040 (Tel: (630) 995-3465)

👤

Provider Name / Credentials Updated November 02, 2017

Recorded as MICHAEL GRASSI, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 02, 2017

Ophthalmology (License #036115845 in IL)

✅

NPI Profile Active August 23, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location August 23, 2011

Registered at 2454 E DEMPSTER ST, SUITE 400, DES PLAINES, IL 600165315 (Tel: 8472990700)

📍

Updated Business Mailing Address August 23, 2011

Registered at 2454 E DEMPSTER ST, SUITE 400, DES PLAINES, IL 600165315 (Tel: 8472990700)

👤

Provider Name / Credentials Updated August 23, 2011

Recorded as MICHAEL GRASSI, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 23, 2011

Ophthalmology (License #35098 in IA)

🟢

Initial NPI Registration & Enumeration August 16, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1689666885

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: August 16, 2005

Last Update: March 10, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1012 95th St Ste 9

Naperville, IL 605645040

Phone: 6309953465

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.