Physician

Blake Isernhagen, MD

According to 2025 Medicare claims, Blake Isernhagen, MD (NPI: 1336469444) practices ophthalmology in the Lexington-Fayette, KY market, with the plurality of this provider's patient population coming from Fayette, KY. This provider's primary affiliated billing organization is RETINA AND VITREOUS ASSOCIATES OF KENTUCKY PLLC (NPI: 1619949971; TIN: 610918053) and primary practice location at 41101-3009.

Isernhagen's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 919 traditional Medicare patients, billed 41,144 HCPCS/CPT codes, and received $3,299,132 in Medicare payments. The top billing code was J0178 (Injection, aflibercept, 1 mg). Part D data shows 1,113 prescription claims across 314 beneficiaries totaling $74,515 in drug costs, led by Difluprednate (Difluprednate). Open Payments data shows 50 records totaling $15,517. 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 $7,898 to $3,299,132. Similarly, Part D prescription costs have risen steadily, from $7,563 to $74,515. 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	100	157	$7,898
2016	665	3,614	$967,113
2017	1,448	9,698	$2,707,376
2018	1,354	11,968	$3,165,110
2019	1,297	13,666	$3,646,382
2020	1,441	13,888	$3,786,650
2021	1,263	12,443	$3,567,444
2022	1,050	12,557	$3,095,529
2023	921	28,041	$3,280,810
2024	919	41,144	$3,299,132

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	26	108	$7,563
2016	28	56	$3,572
2017	147	407	$29,336
2018	192	608	$52,330
2019	246	747	$64,880
2020	338	906	$77,158
2021	358	967	$86,238
2022	353	1,002	$84,261
2023	311	1,083	$92,508
2024	314	1,113	$74,515

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	282	2,278	$653
67028	Injection of drug into eye	417	1,598	$90
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	281	362	$89
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	485	746	$62
92134	Imaging of retina	804	2,129	$28

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Difluprednate	Difluprednate	149	6,274	$15,891
Combigan	Brimonidine Tartrate/Timolol	26	1,643	$9,825
Atovaquone	Atovaquone	18	339	$9,646
Prednisolone Acetate	Prednisolone Acetate	158	7,777	$6,953
Valacyclovir	Valacyclovir Hcl	93	4,188	$4,539

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.	50	$15,517	Genentech USA, 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 Blake Isernhagen, MD?

Tedicare shows public-source Medicare data for Blake Isernhagen, MD (NPI 1336469444), 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 Blake Isernhagen, MD have ACO affiliation data?

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

What billing organization is linked to Blake Isernhagen, MD?

Blake Isernhagen, MD is linked to RETINA AND VITREOUS ASSOCIATES OF KENTUCKY PLLC (billing NPI 1619949971) in the available physician profile data.

Does Blake Isernhagen, MD have Open Payments data?

Blake Isernhagen, MD has 50 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.