Physician

William N. Bichai, M.D.

According to 2025 Medicare claims, William Bichai, M.D. (NPI: 1548349004) practices nephrology in the Bakersfield-Delano, CA market, with the plurality of this provider's patient population coming from Kern, CA. This provider's primary affiliated billing organization is WILLIAM N BICHAI MD INC (NPI: 1720316144; TIN: 320282506) and primary practice location at 93314-7222.

Bichai's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 1,048 traditional Medicare patients, billed 11,037 HCPCS/CPT codes, and received $737,383 in Medicare payments. The top billing code was 99306 (Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more). Part D data shows 69,453 prescription claims across 1,576 beneficiaries totaling $7,663,366 in drug costs, led by Ozempic (Semaglutide). DME data shows 1,749 claims. Open Payments data shows 22 records totaling $258. 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 sharply higher in recent years, from $1,696,512 to $7,663,366. For DME billing, reported payments moved up and down with repeated peaks and valleys, starting at $162,966 and ending at $290,840.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	627	6,194	$498,741
2016	597	7,774	$580,393
2017	667	9,990	$676,594
2018	694	11,931	$798,022
2019	896	14,220	$916,623
2020	878	11,397	$802,049
2021	1,268	10,853	$803,638
2022	1,376	17,950	$878,753
2023	1,016	17,360	$634,669
2024	1,048	11,037	$737,383

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	679	23,465	$1,696,512
2016	726	24,207	$2,013,546
2017	736	25,407	$2,036,766
2018	836	31,017	$2,631,525
2019	951	36,335	$3,015,668
2020	958	35,707	$2,987,914
2021	1,128	40,857	$3,317,091
2022	1,359	43,058	$5,923,906
2023	1,460	55,710	$7,655,534
2024	1,576	69,453	$7,663,366

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	140	975	$147,291
2016	191	987	$183,149
2017	208	954	$233,773
2018	195	1,193	$296,417
2019	248	1,340	$270,115
2020	270	1,496	$208,426
2021	260	1,644	$301,469
2022	304	1,956	$288,155
2023	346	2,144	$285,744
2024	348	1,749	$293,441

* / # = 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
99306	Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more	286	364	$135
99215	Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	260	569	$124
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	287	738	$91
99308	Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more	489	6,729	$55
J3420	Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	225	420	$1

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Ozempic	Semaglutide	1,218	37,995	$1,188,613
Eliquis	Apixaban	1,111	20,099	$409,391
Metformin Er Gastric	Metformin Hcl	505	18,078	$375,305
Jardiance	Empagliflozin	548	15,860	$313,648
Rexulti	Brexpiprazole	270	5,663	$292,528

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
E0466	Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell)	Y	28	207	$177,260
A4239	Supply allowance for non-adjunctive, non-implanted continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service	N	17	81	$32,214
E0483	High frequency chest wall oscillation system, with full anterior and/or posterior thoracic region receiving simultaneous external oscillation, includes all accessories and supplies, each	Y	N/R	33	$31,559
E1390	Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate	Y	35	241	$15,934
B4035	Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape	N	N/R	54	$7,445

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	22	$258	Amgen 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 William N. Bichai, M.D.?

Tedicare shows public-source Medicare data for William N. Bichai, M.D. (NPI 1548349004), 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 William N. Bichai, 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 William N. Bichai, M.D.?

William N. Bichai, M.D. is linked to WILLIAM N BICHAI MD INC (billing NPI 1720316144) in the available physician profile data.

Does William N. Bichai, M.D. have Open Payments data?

William N. Bichai, M.D. has 22 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.