Physician

Alexander A Keister, D.O.

According to 2025 Medicare claims, Alexander Keister, D.O. (NPI: 1689060386) practices emergency medicine in the Sandusky, OH market, with the plurality of this provider's patient population coming from Erie, OH. This provider's primary affiliated billing organization is ER-DOC INC (NPI: 1922092014; TIN: 34-1601264) and primary practice location at 44870-9998.

Keister's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 582 traditional Medicare patients, billed 1,100 HCPCS/CPT codes, and received $61,570 in Medicare payments. The top billing code was 99291 (Critical care, first 30-74 minutes). Part D data shows 273 prescription claims across 196 beneficiaries totaling $1,815 in drug costs, led by Ondansetron Odt (Ondansetron). DME data shows 23 claims. Open Payments data shows 1 records totaling $16. 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 did not follow a clear longitudinal pattern. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $1,647 and ending at $1,815. 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	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	311	439	$40,836
2019	886	1,765	$119,370
2020	748	1,488	$95,706
2021	793	1,572	$113,807
2022	696	1,318	$93,961
2023	674	1,214	$73,930
2024	582	1,100	$61,570

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	17	41	$1,647
2016	52	69	$1,373
2017	57	95	$2,482
2018	114	155	$2,025
2019	213	290	$4,221
2020	136	188	$2,463
2021	198	282	$5,757
2022	164	225	$2,979
2023	175	262	$4,215
2024	196	273	$1,815

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	N/R	11	$51
2019	N/R	N/R	N/R
2020	N/R	N/R	N/R
2021	N/R	N/R	N/R
2022	N/R	N/R	N/R
2023	N/R	N/R	N/R
2024	N/R	23	$111

* / # = 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
99291	Critical care, first 30-74 minutes	66	69	$157
99285	Emergency department visit with high level of medical decision making	265	280	$110
99284	Emergency department visit with moderate level of medical decision making	166	171	$84
71045	X-ray of chest, 1 view	17	18	$6
93010	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	434	522	$6

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Ondansetron Odt	Ondansetron	42	193	$293
Cephalexin	Cephalexin	27	156	$100
Doxycycline Hyclate	Doxycycline Hyclate	20	106	$91
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	16	122	$88
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	22	65	$68

Top 5 DME services in 2024

By Total Medicare Payment Amount.

HCPCS Code	HCPCS Description	Supplier Rental Indicator	Total Supplier Beneficiaries	Total Supplier Claims	Total Medicare Payment Amount
E0570	Nebulizer, with compressor	Y	N/R	23	$111

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	1	$16	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 Alexander A. Keister, D.O.?

Tedicare shows public-source Medicare data for Alexander A. Keister, D.O. (NPI 1689060386), 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 Alexander A. Keister, D.O. have ACO affiliation data?

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

What billing organization is linked to Alexander A. Keister, D.O.?

Alexander A. Keister, D.O. is linked to ER-DOC INC (billing NPI 1922092014) in the available physician profile data.

Does Alexander A. Keister, D.O. have Open Payments data?

Alexander A. Keister, D.O. has 1 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.