Physician

John David Lonsdale, M.D.

According to 2025 Medicare claims, John Lonsdale, M.D. (NPI: 1669583662) practices ophthalmology in the Lewiston-Auburn, ME market, with the plurality of this provider's patient population coming from Androscoggin, ME. This provider's primary affiliated billing organization is CMEC EYE CARE LLC (NPI: 1528563111; TIN: 82-4869076) and primary practice location at 04240-7053.

Lonsdale's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 683 traditional Medicare patients, billed 2,561 HCPCS/CPT codes, and received $125,719 in Medicare payments. The top billing code was 92014 (Established patient complete exam of visual system). Part D data shows 4,244 prescription claims across 955 beneficiaries totaling $1,159,771 in drug costs, led by Restasis (Cyclosporine). 2022 DME data shows 11 claims. Open Payments data shows 23 records totaling $388. 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 started with an early spike, then settled into a lower baseline, moving from $448,669 to $125,719. In contrast, Part D prescription costs have moved from a lower plateau to a higher plateau, from $499,647 to $1,159,771. For DME billing, this smaller-volume category changed little.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	1,989	6,602	$448,669
2016	1,849	6,483	$411,435
2017	1,783	5,959	$378,803
2018	1,632	5,519	$320,122
2019	1,425	5,768	$310,497
2020	780	3,280	$167,742
2021	845	3,204	$164,123
2022	710	2,338	$137,527
2023	729	2,577	$144,107
2024	683	2,561	$125,719

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	724	2,263	$499,647
2016	728	2,087	$557,565
2017	784	2,231	$618,774
2018	845	2,685	$781,897
2019	945	3,580	$957,866
2020	871	3,386	$976,622
2021	959	3,691	$1,070,146
2022	884	3,682	$1,093,186
2023	940	4,004	$1,139,875
2024	955	4,244	$1,159,771

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	109	110	$7,459
2016	124	124	$7,824
2017	101	101	$6,311
2018	36	36	$2,143
2019	40	40	$2,709
2020	N/R	N/R	N/R
2021	14	14	$754
2022	11	11	$546
2023	N/R	N/R	N/R
2024	N/R	N/R	N/R

* / # = 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
92014	Established patient complete exam of visual system	249	259	$71
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	409	522	$45
92134	Imaging of retina	261	320	$22
92250	Photography of the retina	182	213	$21
92133	Imaging of optic nerve	156	236	$19

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Restasis	Cyclosporine	272	19,995	$406,259
Lumigan	Bimatoprost	559	40,500	$356,264
Combigan	Brimonidine Tartrate/Timolol	173	10,999	$93,401
Xiidra	Lifitegrast	55	3,900	$86,886
Alphagan P	Brimonidine Tartrate	59	3,653	$31,770

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.	23	$388	ABBVIE 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 John David Lonsdale, M.D.?

Tedicare shows public-source Medicare data for John David Lonsdale, M.D. (NPI 1669583662), 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 John David Lonsdale, 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 John David Lonsdale, M.D.?

John David Lonsdale, M.D. is linked to CMEC EYE CARE LLC (billing NPI 1528563111) in the available physician profile data.

Does John David Lonsdale, M.D. have Open Payments data?

John David Lonsdale, M.D. has 23 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.