Physician

Allen Chiang, M.D.

According to 2025 Medicare claims, Allen Chiang, M.D. (NPI: 1326212960) practices ophthalmology in the Montgomery County-Bucks County-Chester County, PA market, with the plurality of this provider's patient population coming from Montgomery, PA. This provider's primary affiliated billing organization is RETINOVITREOUS ASSOCIATES LTD (NPI: 1659326452; TIN: 231932869) and primary practice location at 18017-9412.

Chiang's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 1,696 traditional Medicare patients, billed 42,295 HCPCS/CPT codes, and received $6,224,008 in Medicare payments. The top billing code was J0178 (Injection, aflibercept, 1 mg). Part D data shows 374 prescription claims across 145 beneficiaries totaling $39,358 in drug costs, led by Prednisolone Acetate (Prednisolone Acetate). Open Payments data shows 109 records totaling $393,772. 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 $3,240,690 to $6,224,008. Similarly, Part D prescription costs have risen steadily, from $20,701 to $39,358. 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	1,557	15,623	$3,240,690
2016	1,761	21,050	$4,575,204
2017	1,975	25,720	$5,814,588
2018	2,046	29,290	$5,950,316
2019	1,833	28,626	$6,060,289
2020	1,697	29,080	$6,444,625
2021	1,840	32,179	$7,123,390
2022	2,052	35,964	$6,963,082
2023	1,957	43,952	$6,680,244
2024	1,696	42,295	$6,224,008

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	124	356	$20,701
2016	141	371	$33,195
2017	148	428	$36,091
2018	164	492	$41,991
2019	161	467	$33,171
2020	166	473	$36,073
2021	161	498	$38,364
2022	170	465	$47,221
2023	185	475	$51,696
2024	145	374	$39,358

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
J0178	Injection, aflibercept, 1 mg	335	4,026	$652
67028	Injection of drug into eye	677	3,661	$102
92014	Established patient complete exam of visual system	777	844	$89
92012	Established patient problem focused exam of visual system	860	2,431	$68
92134	Imaging of retina	1,648	5,133	$31

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Prednisolone Acetate	Prednisolone Acetate	113	6,198	$6,351
Prolensa	Bromfenac Sodium	18	849	$5,993
Bromfenac Sodium	Bromfenac Sodium	17	622	$2,399
Ketorolac Tromethamine	Ketorolac Tromethamine	81	3,977	$1,262
Atropine Sulfate	Atropine Sulfate	12	735	$594

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.	1	$53	Boston Scientific Corporation
Research Payments	Reported research-related payment or transfer-of-value amount.	108	$393,719	Apellis Pharmaceuticals, 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 Allen Chiang, M.D.?

Tedicare shows public-source Medicare data for Allen Chiang, M.D. (NPI 1326212960), 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 Allen Chiang, 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 Allen Chiang, M.D.?

Allen Chiang, M.D. is linked to RETINOVITREOUS ASSOCIATES LTD (billing NPI 1659326452) in the available physician profile data.

Does Allen Chiang, M.D. have Open Payments data?

Allen Chiang, M.D. has 109 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.