Physician

Charles D Birnbach, M.D.

According to 2025 Medicare claims, Charles Birnbach, M.D. (NPI: 1144255936) practices ophthalmology in the Seattle-Bellevue-Kent, WA market, with the plurality of this provider's patient population coming from King, WA. This provider's primary affiliated billing organization is PACIFIC NORTHWEST RETINA PLLC (NPI: 1558940387; TIN: 853763379) and primary practice location at 98004-3779.

Birnbach's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 873 traditional Medicare patients, billed 28,530 HCPCS/CPT codes, and received $3,466,385 in Medicare payments. The top billing code was 67028 (Injection of drug into eye). Part D data shows 520 prescription claims across 215 beneficiaries totaling $27,047 in drug costs, led by Lumigan (Bimatoprost). Open Payments data shows 3 records totaling $85. 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 risen steadily, from $1,830,586 to $3,466,385. Concurrently, Part D prescription costs did not follow a clear longitudinal pattern. 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	734	8,392	$1,830,586
2016	715	7,929	$1,887,562
2017	692	8,039	$1,946,729
2018	757	10,174	$2,401,011
2019	737	9,337	$2,487,199
2020	667	8,153	$2,216,646
2021	755	10,087	$2,785,340
2022	825	9,435	$2,565,586
2023	809	16,928	$2,498,900
2024	873	28,530	$3,466,385

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	154	354	$21,537
2016	154	362	$21,363
2017	145	342	$21,071
2018	136	323	$29,976
2019	179	490	$40,899
2020	138	409	$40,902
2021	138	340	$33,278
2022	175	451	$33,376
2023	188	507	$33,745
2024	215	520	$27,047

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	322	1,490	$105
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	205	249	$96
92014	Established patient complete exam of visual system	522	644	$94
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	372	561	$69
92134	Imaging of retina	835	2,385	$32

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Lumigan	Bimatoprost	11	796	$6,573
Prednisolone Acetate	Prednisolone Acetate	151	3,858	$4,598
Difluprednate	Difluprednate	19	463	$2,495
Brimonidine Tartrate-Timolol	Brimonidine Tartrate/Timolol	14	517	$1,385
Ofloxacin	Ofloxacin	100	2,273	$1,111

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.	3	$85	Regeneron Healthcare Solutions, 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 Charles D. Birnbach, M.D.?

Tedicare shows public-source Medicare data for Charles D. Birnbach, M.D. (NPI 1144255936), 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 Charles D. Birnbach, 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 Charles D. Birnbach, M.D.?

Charles D. Birnbach, M.D. is linked to PACIFIC NORTHWEST RETINA PLLC (billing NPI 1558940387) in the available physician profile data.

Does Charles D. Birnbach, M.D. have Open Payments data?

Charles D. Birnbach, M.D. has 3 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.