Physician

Adam T Gerstenblith, MD

Ophthalmology Hagerstown-Martinsburg, MD-WV Robert E Parnes MD LLC

According to 2025 Medicare claims, Adam T. Gerstenblith, MD (NPI: 1265654875) practices ophthalmology in the Hagerstown-Martinsburg, MD-WV market, with the plurality of this provider's patient population coming from Washington, MD. This provider's primary affiliated billing organization is Robert E Parnes MD LLC (NPI: 1205857349; TIN: ).

Gerstenblith's data goes back to 2012 and runs through 2026. For example, in 2023, this provider had 1,574 traditional Medicare patients, billed 83,310 HCPCS/CPT codes, and received $4,205,654 in Medicare payments. Part D data shows 280 prescription claims across 131 beneficiaries totaling $20,236 in drug costs. Open Payments data shows 505 records totaling $1,446,424.

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10-Year Trend of Part B billing

Medicare payment trend, with patients and services in the table.

Year	Patients	Services	Medicare Payment
2014	578	4,301	$763,428
2015	792	6,649	$1,339,287
2016	933	9,162	$1,774,909
2017	1,039	9,042	$2,036,512
2018	1,302	11,863	$2,741,913
2019	1,321	13,100	$3,385,980
2020	1,185	13,463	$3,203,462
2021	1,320	15,407	$3,761,448
2022	1,422	17,649	$3,521,528
2023	1,574	83,310	$4,205,654

10-Year Trend of Part D records

Prescription claims trend, with patients and drug cost in the table.

Year	Patients	Claims	Drug Cost
2014	49	131	$5,599
2015	81	252	$14,916
2016	59	171	$10,998
2017	64	158	$10,326
2018	87	207	$11,243
2019	104	240	$14,350
2020	90	204	$19,815
2021	103	244	$15,178
2022	134	290	$15,179
2023	131	280	$20,236

10-Year Trend of DME records

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

No connected records

Top 5 Part B billing codes in 2023

By N of patients.

No connected Part B code-level records for 2023.

Top 5 Part D drugs in 2023

By N of patients.

No connected Part D drug-level records for 2023.

Top 5 DME in 2023

By N of patients.

No connected DME records for 2023.

Physician Data Export

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Part B billing, Part D prescribing, DME records, yearly summaries, source JSON, and source notes.

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