Physician

Michael Chaouki Gemayel

According to 2025 Medicare claims, Michael Gemayel (NPI: 1194258624) practices ophthalmology in the Detroit-Dearborn-Livonia, MI market, with the plurality of this provider's patient population coming from Wayne, MI. This provider's primary affiliated billing organization is MICHIGAN RETINA CENTER, PC (NPI: 1164960571; TIN: 384025028) and primary practice location at 48124-1715.

Gemayel's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 285 traditional Medicare patients, billed 7,039 HCPCS/CPT codes, and received $453,492 in Medicare payments. The top billing code was 92004 (New patient complete exam of visual system). Part D data shows 509 prescription claims across 212 beneficiaries totaling $7,343 in drug costs, led by Prednisolone Acetate (Prednisolone Acetate). Open Payments data shows 7 records totaling $291. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider has fewer than 5 years of reported Medicare Part B carrier billing data, so a reliable trend cannot be assigned. Concurrently, Part D prescription costs started with an early spike, then settled into a lower baseline, moving from $6,696 to $7,343. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.

Part B Carrier Billing Trend

Medicare payment trend, with N of patients and claim lines in the table.

Year	Patients	Clm Lines	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	N/R	N/R	N/R
2019	N/R	N/R	N/R
2020	N/R	N/R	N/R
2021	N/R	N/R	N/R
2022	21	34	$1,330
2023	99	714	$49,770
2024	285	7,039	$453,492

Part D Events Trend

Drug cost trend, with N of patients and prescription claims in the table.

Year	Patients	Claims	Drug Cost
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	43	112	$6,696
2019	42	116	$7,480
2020	34	86	$2,495
2021	13	43	$2,407
2022	16	63	$2,803
2023	48	107	$3,329
2024	212	509	$7,343

DME Billing Trend

Medicare payment trend, with N of patients and DME claim records in the table.

No connected DME records

* / # = suppressed by CMS; 0 = reported zero; N/R = not reported or blank.

Top 5 Part B carrier billing codes in 2024

By total payments.

Code	Description	Patients	Clm Lines	Total Payment
92004	New patient complete exam of visual system	113	113	$109
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	81	136	$101
92014	Established patient complete exam of visual system	132	222	$92
92134	Imaging of retina	259	631	$30
92201	Extended exam of the back part of the eye with retinal drawing	220	470	$19

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Prednisolone Acetate	Prednisolone Acetate	86	1,793	$2,856
Gentamicin Sulfate	Gentamicin Sulfate	268	5,131	$2,005
Ketorolac Tromethamine	Ketorolac Tromethamine	78	1,931	$1,435
Dorzolamide-Timolol	Dorzolamide Hcl/Timolol Maleat	22	1,645	$349
Brimonidine Tartrate	Brimonidine Tartrate	11	408	$69

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	7	$291	Apellis Pharmaceuticals, Inc.
Research Payments	Reported research-related payment or transfer-of-value amount.	0	$0	N/R
Ownership / Investment Interests	Reported value of ownership or investment interests.	0	$0	N/R

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FAQ

What Medicare data is available for Michael Chaouki Gemayel?

Tedicare shows public-source Medicare data for Michael Chaouki Gemayel (NPI 1194258624), including provider identity, specialty, market context, Medicare Part B activity, Part D prescribing, DME records, Open Payments where available, billing organization details, and ACO affiliation signals where available. Profile data covers 2015-2024, with current attribution based on 2025 claims where available.

Does Michael Chaouki Gemayel have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to Michael Chaouki Gemayel?

Michael Chaouki Gemayel is linked to MICHIGAN RETINA CENTER, PC (billing NPI 1164960571) in the available physician profile data.

Does Michael Chaouki Gemayel have Open Payments data?

Michael Chaouki Gemayel has 7 connected Open Payments records in the available 2024 summary data.

Can I download physician-level Medicare data from Tedicare?

Yes. Tedicare provides sample physician export data and paid custom physician data exports for research, planning, outreach, and market analysis. Exports can include physician profile fields, market and specialty context, billing organization details, ACO affiliation signals where available, and Medicare utilization data.