Physician

Agnieszka E Witkowski, MD

Internal medicine Vallejo, CA Permanente Medical Group Inc

According to 2025 Medicare claims, Agnieszka E. Witkowski, MD (NPI: 1043486897) practices internal medicine in the Vallejo, CA market, with the plurality of this provider's patient population coming from Solano, CA. This provider's primary affiliated billing organization is Permanente Medical Group Inc (NPI: 1336222397; TIN: ).

Witkowski's data goes back to 2012 and runs through 2026. For example, in 2021, this provider had 19 traditional Medicare patients, billed 31 HCPCS/CPT codes, and received $2,072 in Medicare payments. 2023 Part D data shows 145 prescription claims across 61 beneficiaries totaling $9,520 in drug costs. No Open Payments records.

Download physician data Market Trend charts Top 5 tables

Download physician data with all billing codes (2014-2023) - $9 per 100 physicians.

10-Year Trend of Part B billing

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

Year	Patients	Services	Medicare Payment
2014	Not reported for this year	Not reported for this year	Not reported for this year
2015	39	66	$4,287
2016	53	105	$7,110
2017	26	48	$3,019
2018	14	18	$1,183
2019	27	45	$2,870
2020	18	24	$1,585
2021	19	31	$2,072
2022	Not reported for this year	Not reported for this year	Not reported for this year
2023	Not reported for this year	Not reported for this year	Not reported for this year

10-Year Trend of Part D records

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

Year	Patients	Claims	Drug Cost
2014	35	80	$2,322
2015	109	326	$14,021
2016	144	442	$25,068
2017	136	420	$29,623
2018	68	174	$6,147
2019	91	307	$14,846
2020	46	147	$14,489
2021	28	56	$3,667
2022	89	239	$10,960
2023	61	145	$9,520

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

Download physician data with all billing codes (2014-2023)

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

$9 per 100 physicians

Download physician data