Physician

Brian Tsi-Wah Chan-Kai, M.D.

According to 2025 Medicare claims, Brian Chan-Kai, M.D. (NPI: 1578690566) practices ophthalmology in the Portland-Vancouver-Hillsboro, OR-WA market, with the plurality of this provider's patient population coming from Clackamas, OR. This provider's primary affiliated billing organization is EYE HEALTH NORTHWEST, PC (NPI: 1619959731; TIN: 93-1014730) and primary practice location at 97045-1523.

Chan-Kai's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 672 traditional Medicare patients, billed 15,892 HCPCS/CPT codes, and received $1,513,175 in Medicare payments. The top billing code was 67028 (Injection of drug into eye). Part D data shows 307 prescription claims across 122 beneficiaries totaling $14,891 in drug costs, led by Prednisolone Acetate (Prednisolone Acetate). Open Payments data shows 55 records totaling $193,794. 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's Medicare Part B carrier billing has changed little. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $10,148 and ending at $14,891. 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	651	11,023	$973,560
2016	698	9,323	$1,286,247
2017	677	7,628	$1,259,625
2018	638	7,011	$1,168,633
2019	621	6,047	$1,226,750
2020	520	5,591	$1,199,293
2021	578	5,831	$1,270,282
2022	576	6,852	$1,213,915
2023	594	11,917	$1,356,034
2024	672	15,892	$1,513,175

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	83	206	$10,148
2016	89	220	$13,046
2017	88	241	$22,634
2018	96	214	$15,262
2019	83	186	$16,387
2020	80	230	$30,491
2021	101	233	$22,064
2022	108	279	$24,841
2023	114	296	$20,820
2024	122	307	$14,891

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
67028	Injection of drug into eye	197	904	$99
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	431	825	$68
99426	Principal care management services for a single high-risk disease, first 30 minutes of clinical staff time directed by health care professional, per calendar month	168	466	$53
92134	Imaging of retina	526	1,535	$33
G2211	Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	280	458	$13

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Prednisolone Acetate	Prednisolone Acetate	104	4,243	$5,867
Moxifloxacin	Moxifloxacin Hcl	46	739	$1,233
Eplerenone	Eplerenone	15	1,050	$1,043
Ketorolac Tromethamine	Ketorolac Tromethamine	18	694	$410
Dorzolamide-Timolol	Dorzolamide Hcl/Timolol Maleat	13	1,192	$268

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.	41	$39,540	Regeneron Healthcare Solutions, Inc.
Research Payments	Reported research-related payment or transfer-of-value amount.	14	$154,253	Roche TCRC, Inc.
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 Brian Tsi-Wah Chan-Kai, M.D.?

Tedicare shows public-source Medicare data for Brian Tsi-Wah Chan-Kai, M.D. (NPI 1578690566), 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 Brian Tsi-Wah Chan-Kai, M.D. have ACO affiliation data?

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

What billing organization is linked to Brian Tsi-Wah Chan-Kai, M.D.?

Brian Tsi-Wah Chan-Kai, M.D. is linked to EYE HEALTH NORTHWEST, PC (billing NPI 1619959731) in the available physician profile data.

Does Brian Tsi-Wah Chan-Kai, M.D. have Open Payments data?

Brian Tsi-Wah Chan-Kai, M.D. has 55 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.