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

CHRISTOPHER M OSAN

Allopathic & Osteopathic Physicians Family Medicine

NPI: 1427477413
CMS profile: 3519706
Location: VALPARAISO, IN

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 · PY2019–2025

CMS publication 2026-06-30

Latest program year · PY2025

$2,884.18

131 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	$2,884.18	131

By paying entity

PY2025 · sorted by reported total

Paying entity	Amount	Records
Acerta Pharma LLC	$496.65	13
ITI, Inc.	$362.76	14
Boehringer Ingelheim Pharmaceuticals, Inc.	$296.58	16
ABBVIE INC.	$291.25	16
PFIZER INC.	$201.39	13
Insulet Corporation	$150.00	1
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$147.59	9
Takeda Pharmaceuticals U.S.A., Inc.	$102.88	6
Phathom Pharmaceuticals, Inc.	$94.01	5
Esperion Therapeutics, Inc.	$77.95	4
Axsome Therapeutics, Inc.	$63.48	3
Otsuka America Pharmaceutical, Inc.	$56.35	3
BOSTON SCIENTIFIC CORPORATION	$49.68	1
GlaxoSmithKline, LLC.	$48.94	3
Lilly USA, LLC	$46.95	3
Merck Sharp & Dohme Corporation	$46.77	3
Vanda Pharmaceuticals Inc.	$43.13	2
Supernus Pharmaceuticals, Inc.	$41.91	2
Antares Pharma, Inc.	$40.67	2
Astellas Pharma US Inc	$36.27	2
NOVARTIS PHARMACEUTICALS CORPORATION	$35.46	2
Abbott Laboratories	$32.99	2
Novo Nordisk AS	$32.46	2
Bayer HealthCare Pharmaceuticals Inc.	$27.09	1
Exact Sciences Corporation	$24.83	1
VERTEX PHARMACEUTICALS INCORPORATED	$19.06	1
Azurity Pharmaceuticals, Inc.	$17.08	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2019	$3,037.07	105
PY2020	$1,713.42	94
PY2021	$3,047.49	137
PY2022	$3,816.11	167
PY2023	$3,047.28	153
PY2024	$2,939.11	138
PY2025	$2,884.18	131

Payment records · PY2025 (131)

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

Program year 2025 2019 2020 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
AstraZeneca Pharmaceuticals LP	$17.82	12/17/2025	Food and Beverage	No dispute reported	06/30/2026	1207055652	CMS
Abbott Laboratories	$14.19	12/14/2025	Food and Beverage	No dispute reported	06/30/2026	1241000793	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$16.59	12/10/2025	Food and Beverage	No dispute reported	06/30/2026	1222920957	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$130.00	12/10/2025	Food and Beverage	No dispute reported	06/30/2026	1241376266	CMS
VERTEX PHARMACEUTICALS INCORPORATED	$19.06	12/09/2025	Food and Beverage	No dispute reported	06/30/2026	1213902252	CMS
AstraZeneca Pharmaceuticals LP	$13.55	12/04/2025	Food and Beverage	No dispute reported	06/30/2026	1207021443	CMS
Insulet Corporation	$150.00	12/04/2025	Food and Beverage	No dispute reported	06/30/2026	1207163291	CMS
Phathom Pharmaceuticals, Inc.	$16.46	12/04/2025	Food and Beverage	No dispute reported	06/30/2026	1219277236	CMS
PFIZER INC.	$11.39	12/01/2025	Food and Beverage	No dispute reported	06/30/2026	1230969014	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$22.68	11/24/2025	Food and Beverage	No dispute reported	06/30/2026	1241376264	CMS
Otsuka America Pharmaceutical, Inc.	$16.46	11/19/2025	Food and Beverage	No dispute reported	06/30/2026	1227440770	CMS
AstraZeneca Pharmaceuticals LP	$21.53	11/18/2025	Food and Beverage	No dispute reported	06/30/2026	1206366272	CMS
PFIZER INC.	$16.49	11/13/2025	Food and Beverage	No dispute reported	06/30/2026	1231001697	CMS
ABBVIE INC.	$21.26	11/12/2025	Food and Beverage	No dispute reported	06/30/2026	1203403029	CMS
AstraZeneca Pharmaceuticals LP	$63.50	11/12/2025	Food and Beverage	No dispute reported	06/30/2026	1207208306	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$16.87	11/11/2025	Food and Beverage	No dispute reported	06/30/2026	1223831868	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$19.03	11/10/2025	Food and Beverage	No dispute reported	06/30/2026	1241376260	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$7.34	11/10/2025	Food and Beverage	No dispute reported	06/30/2026	1241376262	CMS
Astellas Pharma US Inc	$16.04	11/05/2025	Food and Beverage	No dispute reported	06/30/2026	1238695666	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$18.02	11/03/2025	Food and Beverage	No dispute reported	06/30/2026	1222920953	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.26	11/03/2025	Food and Beverage	No dispute reported	06/30/2026	1231841222	CMS
AstraZeneca Pharmaceuticals LP	$19.61	10/30/2025	Food and Beverage	No dispute reported	06/30/2026	1206618324	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$22.83	10/29/2025	Food and Beverage	No dispute reported	06/30/2026	1241376258	CMS
Axsome Therapeutics, Inc.	$17.54	10/20/2025	Food and Beverage	No dispute reported	06/30/2026	1235553790	CMS
Otsuka America Pharmaceutical, Inc.	$20.18	10/15/2025	Food and Beverage	No dispute reported	06/30/2026	1227440766	CMS
PFIZER INC.	$14.18	10/14/2025	Food and Beverage	No dispute reported	06/30/2026	1230445931	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$18.97	10/13/2025	Food and Beverage	No dispute reported	06/30/2026	1222920955	CMS
Abbott Laboratories	$18.80	10/10/2025	Food and Beverage	No dispute reported	06/30/2026	1240981999	CMS
Novartis Pharmaceuticals Corporation	$17.90	10/02/2025	Food and Beverage	No dispute reported	06/30/2026	1200617547	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$15.80	09/29/2025	Food and Beverage	No dispute reported	06/30/2026	1241376256	CMS
AstraZeneca Pharmaceuticals LP	$21.37	09/23/2025	Food and Beverage	No dispute reported	06/30/2026	1206294900	CMS
Phathom Pharmaceuticals, Inc.	$7.83	09/19/2025	Food and Beverage	No dispute reported	06/30/2026	1219277240	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$21.61	09/18/2025	Food and Beverage	No dispute reported	06/30/2026	1222920951	CMS
Vanda Pharmaceuticals Inc.	$26.86	09/17/2025	Food and Beverage	No dispute reported	06/30/2026	1232991578	CMS
Merck Sharp & Dohme LLC	$15.17	09/16/2025	Food and Beverage	No dispute reported	06/30/2026	1238283613	CMS
PFIZER INC.	$14.99	09/15/2025	Food and Beverage	No dispute reported	06/30/2026	1229769570	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$19.79	09/11/2025	Food and Beverage	No dispute reported	06/30/2026	1223855487	CMS
ABBVIE INC.	$24.91	09/10/2025	Food and Beverage	No dispute reported	06/30/2026	1203403024	CMS
AstraZeneca Pharmaceuticals LP	$18.00	09/08/2025	Food and Beverage	No dispute reported	06/30/2026	1206161350	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$7.97	09/08/2025	Food and Beverage	No dispute reported	06/30/2026	1222920949	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$15.66	09/08/2025	Food and Beverage	No dispute reported	06/30/2026	1231841219	CMS
ABBVIE INC.	$54.55	09/04/2025	Food and Beverage	No dispute reported	06/30/2026	1203403018	CMS
Lilly USA, LLC	$14.01	09/04/2025	Food and Beverage	No dispute reported	06/30/2026	1186557868	CMS
ABBVIE INC.	$19.39	09/02/2025	Food and Beverage	No dispute reported	06/30/2026	1203403012	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$28.74	08/28/2025	Food and Beverage	No dispute reported	06/30/2026	1241376254	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$6.80	08/25/2025	Food and Beverage	No dispute reported	06/30/2026	1222920947	CMS
PFIZER INC.	$13.80	08/25/2025	Food and Beverage	No dispute reported	06/30/2026	1229673709	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$17.59	08/20/2025	Food and Beverage	No dispute reported	06/30/2026	1222920945	CMS
Phathom Pharmaceuticals, Inc.	$22.29	08/18/2025	Food and Beverage	No dispute reported	06/30/2026	1219277238	CMS
PFIZER INC.	$14.83	08/14/2025	Food and Beverage	No dispute reported	06/30/2026	1229891993	CMS
ABBVIE INC.	$8.01	08/12/2025	Food and Beverage	No dispute reported	06/30/2026	1203403007	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.08	08/11/2025	Food and Beverage	No dispute reported	06/30/2026	1231841215	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$19.33	08/04/2025	Food and Beverage	No dispute reported	06/30/2026	1241376250	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$2.54	08/04/2025	Food and Beverage	No dispute reported	06/30/2026	1241376252	CMS
Novo Nordisk Inc	$17.47	07/28/2025	Food and Beverage	No dispute reported	06/30/2026	1188776792	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$20.85	07/24/2025	Food and Beverage	No dispute reported	06/30/2026	1222920993	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$17.44	07/23/2025	Food and Beverage	No dispute reported	06/30/2026	1222920943	CMS
Vanda Pharmaceuticals Inc.	$16.27	07/22/2025	Food and Beverage	No dispute reported	06/30/2026	1232991576	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$18.63	07/21/2025	Food and Beverage	No dispute reported	06/30/2026	1223845721	CMS
Merck Sharp & Dohme LLC	$15.91	07/15/2025	Food and Beverage	No dispute reported	06/30/2026	1238104858	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$18.92	07/14/2025	Food and Beverage	No dispute reported	06/30/2026	1241376248	CMS
PFIZER INC.	$15.76	07/10/2025	Food and Beverage	No dispute reported	06/30/2026	1229462229	CMS
ABBVIE INC.	$17.55	07/09/2025	Food and Beverage	No dispute reported	06/30/2026	1203403002	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$27.65	07/02/2025	Food and Beverage	No dispute reported	06/30/2026	1222920989	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$23.57	06/30/2025	Food and Beverage	No dispute reported	06/30/2026	1241376246	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.03	06/30/2025	Food and Beverage	No dispute reported	06/30/2026	1231841212	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$16.13	06/17/2025	Food and Beverage	No dispute reported	06/30/2026	1231841208	CMS
ABBVIE INC.	$14.81	06/11/2025	Food and Beverage	No dispute reported	06/30/2026	1203402996	CMS
AstraZeneca Pharmaceuticals LP	$19.82	06/10/2025	Food and Beverage	No dispute reported	06/30/2026	1206257270	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$20.81	06/09/2025	Food and Beverage	No dispute reported	06/30/2026	1222920941	CMS
Phathom Pharmaceuticals, Inc.	$22.75	06/05/2025	Food and Beverage	No dispute reported	06/30/2026	1219336942	CMS
Boston Scientific Corporation	$49.68	05/30/2025	Food and Beverage	No dispute reported	06/30/2026	1181281782	CMS
ABBVIE INC.	$28.10	05/28/2025	Food and Beverage	No dispute reported	06/30/2026	1203402991	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.01	05/27/2025	Food and Beverage	No dispute reported	06/30/2026	1231841204	CMS
Axsome Therapeutics, Inc.	$18.72	05/22/2025	Food and Beverage	No dispute reported	06/30/2026	1235733807	CMS
PFIZER INC.	$15.04	05/21/2025	Food and Beverage	No dispute reported	06/30/2026	1229121629	CMS
ABBVIE INC.	$7.89	05/19/2025	Food and Beverage	No dispute reported	06/30/2026	1203402986	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$21.51	05/14/2025	Food and Beverage	No dispute reported	06/30/2026	1222920939	CMS
Exact Sciences Corporation	$24.83	05/13/2025	Food and Beverage	No dispute reported	06/30/2026	1235282716	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$14.56	05/13/2025	Food and Beverage	No dispute reported	06/30/2026	1223816458	CMS
Esperion Therapeutics, Inc.	$17.53	05/07/2025	Food and Beverage	No dispute reported	06/30/2026	1243970380	CMS
PFIZER INC.	$7.15	05/05/2025	Food and Beverage	No dispute reported	06/30/2026	1229853684	CMS
Bayer Healthcare Pharmaceuticals Inc.	$27.09	05/01/2025	Food and Beverage	No dispute reported	06/30/2026	1225679654	CMS
Otsuka America Pharmaceutical, Inc.	$19.71	04/29/2025	Food and Beverage	No dispute reported	06/30/2026	1227440762	CMS
Lilly USA, LLC	$16.29	04/28/2025	Food and Beverage	No dispute reported	06/30/2026	1186552142	CMS
GlaxoSmithKline, LLC.	$17.24	04/24/2025	Food and Beverage	No dispute reported	06/30/2026	1190596525	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$19.64	04/22/2025	Food and Beverage	No dispute reported	06/30/2026	1222920937	CMS
Esperion Therapeutics, Inc.	$17.00	04/16/2025	Food and Beverage	No dispute reported	06/30/2026	1243970378	CMS
AstraZeneca Pharmaceuticals LP	$15.97	04/15/2025	Food and Beverage	No dispute reported	06/30/2026	1206411820	CMS
Novo Nordisk Inc	$14.99	04/15/2025	Food and Beverage	No dispute reported	06/30/2026	1188164145	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.96	04/14/2025	Food and Beverage	No dispute reported	06/30/2026	1231841198	CMS
ABBVIE INC.	$12.01	04/09/2025	Food and Beverage	No dispute reported	06/30/2026	1203402982	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$18.05	04/08/2025	Food and Beverage	No dispute reported	06/30/2026	1223841011	CMS
Phathom Pharmaceuticals, Inc.	$24.68	04/07/2025	Food and Beverage	No dispute reported	06/30/2026	1219336914	CMS
PFIZER INC.	$17.78	04/03/2025	Food and Beverage	No dispute reported	06/30/2026	1228940999	CMS
ABBVIE INC.	$18.77	04/02/2025	Food and Beverage	No dispute reported	06/30/2026	1203402976	CMS
Axsome Therapeutics, Inc.	$27.22	03/31/2025	Food and Beverage	No dispute reported	06/30/2026	1235705997	CMS
ABBVIE INC.	$9.21	03/26/2025	Food and Beverage	No dispute reported	06/30/2026	1203402970	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$16.26	03/25/2025	Food and Beverage	No dispute reported	06/30/2026	1231841195	CMS
Antares Pharma, Inc.	$18.44	03/18/2025	Food and Beverage	No dispute reported	06/30/2026	1235894031	CMS
AstraZeneca Pharmaceuticals LP	$24.08	03/17/2025	Food and Beverage	No dispute reported	06/30/2026	1206439057	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$18.96	03/13/2025	Food and Beverage	No dispute reported	06/30/2026	1222920935	CMS
Esperion Therapeutics, Inc.	$25.56	03/12/2025	Food and Beverage	No dispute reported	06/30/2026	1243970376	CMS
Supernus Pharmaceuticals, Inc.	$20.00	03/06/2025	Food and Beverage	No dispute reported	06/30/2026	1244915030	CMS
ABBVIE INC.	$14.99	03/05/2025	Food and Beverage	No dispute reported	06/30/2026	1203402964	CMS
PFIZER INC.	$14.55	03/04/2025	Food and Beverage	No dispute reported	06/30/2026	1228908313	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$22.25	03/03/2025	Food and Beverage	No dispute reported	06/30/2026	1241376244	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$20.39	02/20/2025	Food and Beverage	No dispute reported	06/30/2026	1222920933	CMS
PFIZER INC.	$21.26	02/11/2025	Food and Beverage	No dispute reported	06/30/2026	1229828675	CMS
Esperion Therapeutics, Inc.	$17.86	02/06/2025	Food and Beverage	No dispute reported	06/30/2026	1243970374	CMS
ABBVIE INC.	$9.11	02/05/2025	Food and Beverage	No dispute reported	06/30/2026	1203402958	CMS
GlaxoSmithKline, LLC.	$17.28	02/05/2025	Food and Beverage	No dispute reported	06/30/2026	1191708598	CMS
AstraZeneca Pharmaceuticals LP	$20.15	02/04/2025	Food and Beverage	No dispute reported	06/30/2026	1207310822	CMS
ABBVIE INC.	$16.27	02/03/2025	Food and Beverage	No dispute reported	06/30/2026	1203402953	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$16.20	02/03/2025	Food and Beverage	No dispute reported	06/30/2026	1231841191	CMS
Astellas Pharma US Inc	$20.23	01/30/2025	Food and Beverage	No dispute reported	06/30/2026	1238739000	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$6.74	01/30/2025	Food and Beverage	No dispute reported	06/30/2026	1241376242	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$14.98	01/29/2025	Food and Beverage	No dispute reported	06/30/2026	1223819076	CMS
AstraZeneca Pharmaceuticals LP	$13.66	01/27/2025	Food and Beverage	No dispute reported	06/30/2026	1206370529	CMS
ABBVIE INC.	$14.42	01/26/2025	Food and Beverage	No dispute reported	06/30/2026	1203402948	CMS
Supernus Pharmaceuticals, Inc.	$21.91	01/23/2025	Food and Beverage	No dispute reported	06/30/2026	1244864375	CMS
Lilly USA, LLC	$16.65	01/22/2025	Food and Beverage	No dispute reported	06/30/2026	1186553996	CMS
Novartis Pharmaceuticals Corporation	$17.56	01/21/2025	Food and Beverage	No dispute reported	06/30/2026	1200617545	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$21.78	01/15/2025	Food and Beverage	No dispute reported	06/30/2026	1222920931	CMS
PFIZER INC.	$24.17	01/14/2025	Food and Beverage	No dispute reported	06/30/2026	1228854569	CMS
Merck Sharp & Dohme LLC	$15.69	01/13/2025	Food and Beverage	No dispute reported	06/30/2026	1238238492	CMS
GlaxoSmithKline, LLC.	$14.42	01/09/2025	Food and Beverage	No dispute reported	06/30/2026	1190885787	CMS
Antares Pharma, Inc.	$22.23	01/08/2025	Food and Beverage	No dispute reported	06/30/2026	1235894029	CMS
Azurity Pharmaceuticals, Inc.	$17.08	01/07/2025	Food and Beverage	No dispute reported	06/30/2026	1242676843	CMS
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)	$22.99	01/06/2025	Food and Beverage	No dispute reported	06/30/2026	1241376240	CMS
AstraZeneca Pharmaceuticals LP	$227.59	01/03/2025	Food and Beverage	No dispute reported	06/30/2026	1206766408	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: 2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files: Dataset page · Bulk file · PY2019 , PY2020 , 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-1427477413

Plain: CHRISTOPHER M OSAN, NPI 1427477413. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1427477413.
APA 7: IndustryPayments. (2026). CHRISTOPHER M OSAN, NPI 1427477413 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1427477413
Bluebook: CHRISTOPHER M OSAN, NPI 1427477413, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1427477413.

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