Physician

Kenneth G Halliwell, M.D.

According to 2025 Medicare claims, Kenneth Halliwell, M.D. (NPI: 1639338429) practices sleep medicine in the Buffalo-Cheektowaga, NY market, with the plurality of this provider's patient population coming from Erie, NY. This provider's primary affiliated billing organization is BUFFALO MEDICAL GROUP, P.C. (NPI: 1881659506; TIN: 16-1000580) and primary practice location at 14221-8216. Halliwell is affiliated with the agilon health Northeastern ACO, Inc. (DBA: Senior Health Connect ACO 6) (ACO ID: D0109), participating under the REACH model.

Halliwell's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 194 traditional Medicare patients, billed 379 HCPCS/CPT codes, and received $65,307 in Medicare payments. The top billing code was 95811 (Sleep study in sleep lab with continuous airway pressure (6 years or older)). Part D data shows 178 prescription claims across 34 beneficiaries totaling $573,391 in drug costs, led by Xyrem (Sodium Oxybate). DME data shows 1,465 claims. Open Payments data shows 86 records totaling $33,426. 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 moved up and down with repeated peaks and valleys, starting at $68,989 and ending at $65,307. Concurrently, Part D prescription costs have risen steadily, from $293,666 to $573,391. For DME billing, reported payments moved from a lower plateau to a higher plateau, from $47,164 to $80,560.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	356	838	$68,989
2016	435	1,046	$77,762
2017	503	1,222	$87,113
2018	482	1,103	$89,513
2019	438	1,052	$105,931
2020	388	690	$54,438
2021	522	1,072	$104,947
2022	335	519	$54,596
2023	160	313	$54,737
2024	194	379	$65,307

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	147	1,287	$293,666
2016	121	1,125	$285,115
2017	117	987	$276,597
2018	104	906	$269,793
2019	108	929	$307,426
2020	115	923	$308,492
2021	119	824	$495,076
2022	99	514	$445,753
2023	48	207	$502,329
2024	34	178	$573,391

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	502	942	$36,082
2016	956	1,996	$71,754
2017	1,226	3,027	$96,916
2018	1,510	3,477	$140,273
2019	1,873	4,164	$199,181
2020	1,928	4,807	$224,026
2021	1,685	3,699	$170,728
2022	1,409	3,200	$153,520
2023	937	1,863	$91,840
2024	680	1,465	$80,378

* / # = 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
95811	Sleep study in sleep lab with continuous airway pressure (6 years or older)	64	72	$477
95810	Sleep study in sleep lab (6 years or older)	24	24	$448
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	47	70	$92
95806	Sleep study including heart rate, breathing, airflow, and effort	82	88	$62
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	53	84	$62

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Xyrem	Sodium Oxybate	12	360	$252,426
Xywav	Sodium,calcium,mag,pot Oxybate	12	360	$238,631
Zaleplon	Zaleplon	19	547	$730
Modafinil	Modafinil	16	465	$452
Zolpidem Tartrate	Zolpidem Tartrate	27	810	$446

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
E0471	Respiratory assist device, bi-level pressure capability, with back-up rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device)	Y	15	84	$17,067
A7031	Face mask interface, replacement for full face mask, each	N	73	143	$11,754
A7030	Full face mask used with positive airway pressure device, each	N	79	135	$11,666
A4604	Tubing with integrated heating element for use with positive airway pressure device	N	110	213	$7,798
A7032	Cushion for use on nasal mask interface, replacement only, each	N	30	61	$6,013

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	86	$33,426	Avadel CNS Pharmaceuticals, LLC
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 Kenneth G. Halliwell, M.D.?

Tedicare shows public-source Medicare data for Kenneth G. Halliwell, M.D. (NPI 1639338429), 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 Kenneth G. Halliwell, M.D. have ACO affiliation data?

Kenneth G. Halliwell, M.D. is shown with ACO affiliation data for agilon health Northeastern ACO, Inc. (DBA: Senior Health Connect ACO 6) (REACH, ACO ID D0109).

What billing organization is linked to Kenneth G. Halliwell, M.D.?

Kenneth G. Halliwell, M.D. is linked to BUFFALO MEDICAL GROUP, P.C. (billing NPI 1881659506) in the available physician profile data.

Does Kenneth G. Halliwell, M.D. have Open Payments data?

Kenneth G. Halliwell, M.D. has 86 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.