Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

Covered recipient · General Payments record

STEVEN R KALFUS

Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner

NPI: 1801938865
CMS profile: 10817674
Location: CHANDLER, AZ

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

General Payments · PY2021–2025

CMS publication 2026-06-30

Latest program year · PY2025

$3,587.45

138 records · 0 disputed

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”
— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated

This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
Featured-page threshold (a presentation gate, not a judgment): (records>=3 OR total>=100) AND records>=2 AND NPI identity (all years).
Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of payment	Amount	Records
Food and Beverage	$2,687.45	137
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$900.00	1

By paying entity

PY2025 · sorted by reported total

Paying entity	Amount	Records
Ipsen Biopharmaceuticals, Inc	$1,239.29	15
ABBVIE INC.	$573.60	27
Gilead Sciences, Inc.	$344.97	15
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$232.32	20
Madrigal Pharmaceuticals	$198.14	12
QOL Medical, LLC	$166.99	8
Ardelyx, Inc.	$147.88	8
AIMMUNE THERAPEUTICS, INC.	$140.18	6
Takeda Pharmaceuticals U.S.A., Inc.	$112.81	6
GENZYME CORPORATION	$82.25	4
Novo Nordisk AS	$53.62	3
Regeneron Healthcare Solutions, Inc.	$52.81	2
Phathom Pharmaceuticals, Inc.	$38.11	2
PFIZER INC.	$37.40	2
Ferring Pharmaceuticals Inc.	$27.45	1
Mauna Kea Technologies, Inc.	$23.41	1
Daiichi Sankyo Inc.	$22.45	1
Janssen Biotech, Inc.	$22.15	1
Braintree Laboratories, Inc.	$21.57	1
Exact Sciences Corporation	$18.94	1
ORPHALAN INC	$18.47	1
Sirtex Medical Inc	$12.64	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2021	$10,634.64	133
PY2022	$11,526.71	103
PY2023	$7,770.12	82
PY2024	$9,557.59	99
PY2025	$3,587.45	138

Payment records · PY2025 (138)

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

Program year 2025 2021 2022 2023 2024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.

Paying entity	Amount	Date	Nature of payment	Dispute status	Published	Record ID	Source
QOL Medical, LLC	$20.36	12/18/2025	Food and Beverage	No dispute reported	06/30/2026	1185012455	CMS
Novo Nordisk Inc	$15.92	12/15/2025	Food and Beverage	No dispute reported	06/30/2026	1188805124	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$16.80	12/11/2025	Food and Beverage	No dispute reported	06/30/2026	1232146086	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$7.25	12/11/2025	Food and Beverage	No dispute reported	06/30/2026	1232146088	CMS
ABBVIE INC.	$107.97	12/08/2025	Food and Beverage	No dispute reported	06/30/2026	1204490303	CMS
Aimmune Therapeutics, Inc.	$28.48	12/03/2025	Food and Beverage	No dispute reported	06/30/2026	1249709654	CMS
ABBVIE INC.	$29.80	12/01/2025	Food and Beverage	No dispute reported	06/30/2026	1204490296	CMS
ABBVIE INC.	$15.82	12/01/2025	Food and Beverage	No dispute reported	06/30/2026	1204490300	CMS
Madrigal Pharmaceuticals	$27.04	11/18/2025	Food and Beverage	No dispute reported	06/30/2026	1248356691	CMS
Gilead Sciences, Inc.	$9.54	11/17/2025	Food and Beverage	No dispute reported	06/30/2026	1234587780	CMS
QOL Medical, LLC	$18.98	11/13/2025	Food and Beverage	No dispute reported	06/30/2026	1185012443	CMS
ABBVIE INC.	$16.12	11/10/2025	Food and Beverage	No dispute reported	06/30/2026	1204490291	CMS
PFIZER INC.	$19.34	11/10/2025	Food and Beverage	No dispute reported	06/30/2026	1230853916	CMS
Ipsen Biopharmaceuticals, Inc	$28.18	11/07/2025	Food and Beverage	No dispute reported	06/30/2026	1208859202	CMS
GENZYME CORPORATION	$17.37	11/06/2025	Food and Beverage	No dispute reported	06/30/2026	1233579225	CMS
ABBVIE INC.	$12.65	11/05/2025	Food and Beverage	No dispute reported	06/30/2026	1204490286	CMS
Novo Nordisk Inc	$15.32	11/05/2025	Food and Beverage	No dispute reported	06/30/2026	1188810487	CMS
Aimmune Therapeutics, Inc.	$26.41	11/04/2025	Food and Beverage	No dispute reported	06/30/2026	1249709652	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$9.85	11/03/2025	Food and Beverage	No dispute reported	06/30/2026	1232146056	CMS
Ipsen Biopharmaceuticals, Inc	$12.21	10/30/2025	Food and Beverage	No dispute reported	06/30/2026	1208859200	CMS
Gilead Sciences, Inc.	$124.99	10/29/2025	Food and Beverage	No dispute reported	06/30/2026	1234384804	CMS
ABBVIE INC.	$21.85	10/28/2025	Food and Beverage	No dispute reported	06/30/2026	1204490281	CMS
Madrigal Pharmaceuticals	$23.01	10/27/2025	Food and Beverage	No dispute reported	06/30/2026	1248356689	CMS
Ipsen Biopharmaceuticals, Inc	$900.00	10/25/2025	Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	No dispute reported	06/30/2026	1208859204	CMS
ABBVIE INC.	$15.07	10/23/2025	Food and Beverage	No dispute reported	06/30/2026	1204490278	CMS
PFIZER INC.	$18.06	10/21/2025	Food and Beverage	No dispute reported	06/30/2026	1230435153	CMS
Gilead Sciences, Inc.	$9.70	10/17/2025	Food and Beverage	No dispute reported	06/30/2026	1234587378	CMS
ABBVIE INC.	$26.30	10/14/2025	Food and Beverage	No dispute reported	06/30/2026	1204490273	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$13.68	10/14/2025	Food and Beverage	No dispute reported	06/30/2026	1223962353	CMS
ABBVIE INC.	$28.94	10/09/2025	Food and Beverage	No dispute reported	06/30/2026	1204490268	CMS
Novo Nordisk Inc	$22.38	10/08/2025	Food and Beverage	No dispute reported	06/30/2026	1188583663	CMS
Ipsen Biopharmaceuticals, Inc	$16.39	10/06/2025	Food and Beverage	No dispute reported	06/30/2026	1208859198	CMS
ABBVIE INC.	$5.21	10/01/2025	Food and Beverage	No dispute reported	06/30/2026	1204490263	CMS
Aimmune Therapeutics, Inc.	$15.87	09/30/2025	Food and Beverage	No dispute reported	06/30/2026	1249709658	CMS
GENZYME CORPORATION	$24.90	09/30/2025	Food and Beverage	No dispute reported	06/30/2026	1233579213	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$18.85	09/29/2025	Food and Beverage	No dispute reported	06/30/2026	1232146054	CMS
ABBVIE INC.	$20.67	09/24/2025	Food and Beverage	No dispute reported	06/30/2026	1204490259	CMS
Ardelyx, Inc.	$23.87	09/23/2025	Food and Beverage	No dispute reported	06/30/2026	1247921705	CMS
Madrigal Pharmaceuticals	$9.78	09/22/2025	Food and Beverage	No dispute reported	06/30/2026	1248356685	CMS
Madrigal Pharmaceuticals	$21.65	09/22/2025	Food and Beverage	No dispute reported	06/30/2026	1248356687	CMS
Gilead Sciences, Inc.	$30.22	09/17/2025	Food and Beverage	No dispute reported	06/30/2026	1234436677	CMS
Braintree Laboratories, Inc.	$21.57	09/12/2025	Food and Beverage	No dispute reported	06/30/2026	1173784909	CMS
Aimmune Therapeutics, Inc.	$19.02	09/10/2025	Food and Beverage	No dispute reported	06/30/2026	1249709660	CMS
Madrigal Pharmaceuticals	$7.88	09/10/2025	Food and Beverage	No dispute reported	06/30/2026	1248356683	CMS
Gilead Sciences, Inc.	$11.55	09/09/2025	Food and Beverage	No dispute reported	06/30/2026	1234583936	CMS
Gilead Sciences, Inc.	$6.22	09/09/2025	Food and Beverage	No dispute reported	06/30/2026	1234597985	CMS
Madrigal Pharmaceuticals	$21.13	08/27/2025	Food and Beverage	No dispute reported	06/30/2026	1248356681	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$17.67	08/26/2025	Food and Beverage	No dispute reported	06/30/2026	1223995680	CMS
Ipsen Biopharmaceuticals, Inc	$4.97	08/25/2025	Food and Beverage	No dispute reported	06/30/2026	1208859194	CMS
Ipsen Biopharmaceuticals, Inc	$21.48	08/25/2025	Food and Beverage	No dispute reported	06/30/2026	1208859196	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.01	08/25/2025	Food and Beverage	No dispute reported	06/30/2026	1232146084	CMS
Gilead Sciences, Inc.	$31.68	08/23/2025	Food and Beverage	No dispute reported	06/30/2026	1234429570	CMS
Ardelyx, Inc.	$7.66	08/21/2025	Food and Beverage	No dispute reported	06/30/2026	1247921703	CMS
ABBVIE INC.	$27.28	08/19/2025	Food and Beverage	No dispute reported	06/30/2026	1204490255	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$23.46	08/17/2025	Food and Beverage	No dispute reported	06/30/2026	1224047883	CMS
QOL Medical, LLC	$17.08	08/13/2025	Food and Beverage	No dispute reported	06/30/2026	1185012409	CMS
Gilead Sciences, Inc.	$17.03	08/12/2025	Food and Beverage	No dispute reported	06/30/2026	1234557507	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$12.67	08/12/2025	Food and Beverage	No dispute reported	06/30/2026	1232146082	CMS
ABBVIE INC.	$20.97	07/30/2025	Food and Beverage	No dispute reported	06/30/2026	1204490246	CMS
ABBVIE INC.	$6.37	07/30/2025	Food and Beverage	No dispute reported	06/30/2026	1204490250	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$2.59	07/28/2025	Food and Beverage	No dispute reported	06/30/2026	1232146078	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.57	07/28/2025	Food and Beverage	No dispute reported	06/30/2026	1232146080	CMS
ABBVIE INC.	$10.18	07/22/2025	Food and Beverage	No dispute reported	06/30/2026	1204490241	CMS
Ipsen Biopharmaceuticals, Inc	$3.77	07/22/2025	Food and Beverage	No dispute reported	06/30/2026	1208859190	CMS
Ipsen Biopharmaceuticals, Inc	$9.89	07/22/2025	Food and Beverage	No dispute reported	06/30/2026	1208859192	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$18.47	07/22/2025	Food and Beverage	No dispute reported	06/30/2026	1232146066	CMS
QOL Medical, LLC	$22.72	07/16/2025	Food and Beverage	No dispute reported	06/30/2026	1185012397	CMS
ABBVIE INC.	$22.08	07/15/2025	Food and Beverage	No dispute reported	06/30/2026	1204490237	CMS
Ardelyx, Inc.	$19.24	07/09/2025	Food and Beverage	No dispute reported	06/30/2026	1247921701	CMS
Ipsen Biopharmaceuticals, Inc	$7.61	07/02/2025	Food and Beverage	No dispute reported	06/30/2026	1208859188	CMS
QOL Medical, LLC	$18.20	07/01/2025	Food and Beverage	No dispute reported	06/30/2026	1185012389	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.04	06/24/2025	Food and Beverage	No dispute reported	06/30/2026	1232146064	CMS
Regeneron Healthcare Solutions, Inc.	$19.61	06/11/2025	Food and Beverage	No dispute reported	06/30/2026	1213149826	CMS
Gilead Sciences, Inc.	$10.53	06/09/2025	Food and Beverage	No dispute reported	06/30/2026	1234585798	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$20.65	06/09/2025	Food and Beverage	No dispute reported	06/30/2026	1232146070	CMS
Ardelyx, Inc.	$24.10	06/04/2025	Food and Beverage	No dispute reported	06/30/2026	1247921699	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$7.08	06/02/2025	Food and Beverage	No dispute reported	06/30/2026	1232146062	CMS
Ipsen Biopharmaceuticals, Inc	$26.87	05/27/2025	Food and Beverage	No dispute reported	06/30/2026	1208859184	CMS
Madrigal Pharmaceuticals	$14.47	05/23/2025	Food and Beverage	No dispute reported	06/30/2026	1248356679	CMS
Phathom Pharmaceuticals, Inc.	$17.92	05/22/2025	Food and Beverage	No dispute reported	06/30/2026	1219375781	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$22.82	05/21/2025	Food and Beverage	No dispute reported	06/30/2026	1224042866	CMS
Aimmune Therapeutics, Inc.	$28.70	05/20/2025	Food and Beverage	No dispute reported	06/30/2026	1249709656	CMS
ABBVIE INC.	$11.95	05/15/2025	Food and Beverage	No dispute reported	06/30/2026	1204490234	CMS
Janssen Biotech, Inc.	$22.15	05/15/2025	Food and Beverage	No dispute reported	06/30/2026	1174454494	CMS
Ardelyx, Inc.	$25.91	05/14/2025	Food and Beverage	No dispute reported	06/30/2026	1247921697	CMS
Ipsen Biopharmaceuticals, Inc	$7.32	05/13/2025	Food and Beverage	No dispute reported	06/30/2026	1208859182	CMS
ABBVIE INC.	$18.48	05/12/2025	Food and Beverage	No dispute reported	06/30/2026	1204490231	CMS
Exact Sciences Corporation	$18.94	05/10/2025	Food and Beverage	No dispute reported	06/30/2026	1235605154	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$6.75	05/07/2025	Food and Beverage	No dispute reported	06/30/2026	1232146060	CMS
QOL Medical, LLC	$18.56	05/06/2025	Food and Beverage	No dispute reported	06/30/2026	1185012355	CMS
Gilead Sciences, Inc.	$11.18	05/05/2025	Food and Beverage	No dispute reported	06/30/2026	1234584666	CMS
ABBVIE INC.	$6.56	04/29/2025	Food and Beverage	No dispute reported	06/30/2026	1204490227	CMS
Ardelyx, Inc.	$26.42	04/29/2025	Food and Beverage	No dispute reported	06/30/2026	1247921695	CMS
Gilead Sciences, Inc.	$15.45	04/25/2025	Food and Beverage	No dispute reported	06/30/2026	1234569460	CMS
Madrigal Pharmaceuticals	$19.14	04/25/2025	Food and Beverage	No dispute reported	06/30/2026	1248356677	CMS
Ipsen Biopharmaceuticals, Inc	$23.31	04/24/2025	Food and Beverage	No dispute reported	06/30/2026	1208859180	CMS
Mauna Kea Technologies, Inc.	$23.41	04/23/2025	Food and Beverage	No dispute reported	06/30/2026	1181558595	CMS
Aimmune Therapeutics, Inc.	$21.70	04/22/2025	Food and Beverage	No dispute reported	06/30/2026	1249709662	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$1.77	04/22/2025	Food and Beverage	No dispute reported	06/30/2026	1232146074	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$15.65	04/22/2025	Food and Beverage	No dispute reported	06/30/2026	1232146076	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$7.87	04/21/2025	Food and Beverage	No dispute reported	06/30/2026	1232146058	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$17.37	04/21/2025	Food and Beverage	No dispute reported	06/30/2026	1223992872	CMS
GENZYME CORPORATION	$20.84	04/16/2025	Food and Beverage	No dispute reported	06/30/2026	1233579096	CMS
ORPHALAN INC	$18.47	04/15/2025	Food and Beverage	No dispute reported	06/30/2026	1243932514	CMS
ABBVIE INC.	$16.12	04/14/2025	Food and Beverage	No dispute reported	06/30/2026	1204490222	CMS
Ferring Pharmaceuticals Inc.	$27.45	04/12/2025	Food and Beverage	No dispute reported	06/30/2026	1242097343	CMS
Madrigal Pharmaceuticals	$14.83	04/10/2025	Food and Beverage	No dispute reported	06/30/2026	1248356675	CMS
ABBVIE INC.	$6.92	04/08/2025	Food and Beverage	No dispute reported	06/30/2026	1204490219	CMS
Gilead Sciences, Inc.	$12.28	04/07/2025	Food and Beverage	No dispute reported	06/30/2026	1234582662	CMS
ABBVIE INC.	$17.16	04/02/2025	Food and Beverage	No dispute reported	06/30/2026	1204490214	CMS
Phathom Pharmaceuticals, Inc.	$20.19	03/27/2025	Food and Beverage	No dispute reported	06/30/2026	1219375723	CMS
QOL Medical, LLC	$18.78	03/27/2025	Food and Beverage	No dispute reported	06/30/2026	1185012337	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$6.02	03/25/2025	Food and Beverage	No dispute reported	06/30/2026	1232146068	CMS
Madrigal Pharmaceuticals	$16.33	03/19/2025	Food and Beverage	No dispute reported	06/30/2026	1248356673	CMS
ABBVIE INC.	$22.46	03/18/2025	Food and Beverage	No dispute reported	06/30/2026	1204490211	CMS
Ipsen Biopharmaceuticals, Inc	$14.34	03/17/2025	Food and Beverage	No dispute reported	06/30/2026	1208859178	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$8.36	03/17/2025	Food and Beverage	No dispute reported	06/30/2026	1232146052	CMS
Ardelyx, Inc.	$6.08	03/11/2025	Food and Beverage	No dispute reported	06/30/2026	1247921693	CMS
Gilead Sciences, Inc.	$13.56	03/10/2025	Food and Beverage	No dispute reported	06/30/2026	1234579715	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$10.98	03/07/2025	Food and Beverage	No dispute reported	06/30/2026	1232146072	CMS
Sirtex Medical Inc	$12.64	03/05/2025	Food and Beverage	No dispute reported	06/30/2026	1250416384	CMS
ABBVIE INC.	$16.94	03/04/2025	Food and Beverage	No dispute reported	06/30/2026	1204490207	CMS
ABBVIE INC.	$26.32	03/03/2025	Food and Beverage	No dispute reported	06/30/2026	1204490202	CMS
Ipsen Biopharmaceuticals, Inc	$137.96	02/26/2025	Food and Beverage	No dispute reported	06/30/2026	1208859186	CMS
GENZYME CORPORATION	$19.14	02/25/2025	Food and Beverage	No dispute reported	06/30/2026	1233579060	CMS
QOL Medical, LLC	$32.31	02/19/2025	Food and Beverage	No dispute reported	06/30/2026	1185012299	CMS
ABBVIE INC.	$25.14	02/18/2025	Food and Beverage	No dispute reported	06/30/2026	1204490198	CMS
Madrigal Pharmaceuticals	$6.59	02/18/2025	Food and Beverage	No dispute reported	06/30/2026	1248356671	CMS
Ipsen Biopharmaceuticals, Inc	$24.99	02/17/2025	Food and Beverage	No dispute reported	06/30/2026	1208859176	CMS
Gilead Sciences, Inc.	$34.04	02/05/2025	Food and Beverage	No dispute reported	06/30/2026	1234419921	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$17.81	02/04/2025	Food and Beverage	No dispute reported	06/30/2026	1223996999	CMS
Daiichi Sankyo Inc.	$22.45	02/03/2025	Food and Beverage	No dispute reported	06/30/2026	1197049803	CMS
ABBVIE INC.	$18.27	01/31/2025	Food and Beverage	No dispute reported	06/30/2026	1204490194	CMS
Gilead Sciences, Inc.	$7.00	01/31/2025	Food and Beverage	No dispute reported	06/30/2026	1234595083	CMS
Regeneron Healthcare Solutions, Inc.	$33.20	01/29/2025	Food and Beverage	No dispute reported	06/30/2026	1213149824	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$15.09	01/10/2025	Food and Beverage	No dispute reported	06/30/2026	1232146090	CMS
Ardelyx, Inc.	$14.60	01/07/2025	Food and Beverage	No dispute reported	06/30/2026	1247921691	CMS
Madrigal Pharmaceuticals	$16.29	01/07/2025	Food and Beverage	No dispute reported	06/30/2026	1248356669	CMS

Source & provenance

Dataset: CMS Open Payments — General Payments
Publisher of source data: Centers for Medicare & Medicaid Services
CMS publication date: 2026-06-30
Program years on this page: 2021, 2022, 2023, 2024, 2025
Source files: Dataset page · Bulk file · PY2021 , PY2022 , PY2023 , PY2024 , PY2025
Generated from: OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Permalink https://industrypayments.org/provider/npi-1801938865

Plain: STEVEN R KALFUS, NPI 1801938865. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1801938865.
APA 7: IndustryPayments. (2026). STEVEN R KALFUS, NPI 1801938865 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1801938865
Bluebook: STEVEN R KALFUS, NPI 1801938865, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1801938865.

Source: Centers for Medicare & Medicaid Services, Open Payments.