INOGEN, INC.

4,957 providers listed $348,476.47 reported 12,842 records General Payments

General Payments reported — all loaded program years

$348,476.47

Category: General Payments
Program years: 2019, 2020, 2021, 2022, 2023, 2024, 2025
Record count: 12,842
Providers listed: 4,957

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How this figure is 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.
Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.
Methodology & Data — sourcing, labeling, and limitations.

Coverage: program years 2019–2025, General Payments only. Each figure is labeled with its category and program year; categories are never combined.

By program year

Program year	Reported	Records	Providers
PY2019	$262.80	16	16
PY2020	$1,075.83	47	46
PY2021	$2,580.36	126	126
PY2022	$64,235.66	3,162	2,028
PY2023	$116,655.30	5,743	2,349
PY2024	$40,619.38	2,167	1,250
PY2025	$123,047.14	1,581	1,059

By recipient specialty (25 shown)

Sorted by reported total.

Specialty	Reported	Records	Providers
Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	$196,159.14	5,464	1,669
Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Family	$31,292.90	2,038	793
Allopathic & Osteopathic Physicians\|Internal Medicine\|Critical Care Medicine	$23,946.59	541	212
Allopathic & Osteopathic Physicians\|Internal Medicine	$22,924.41	884	492
Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner	$13,538.96	844	274
Allopathic & Osteopathic Physicians\|Family Medicine	$12,361.44	762	492
Physician Assistants & Advanced Practice Nursing Providers\|Physician Assistant	$8,309.94	506	259
Allopathic & Osteopathic Physicians\|Internal Medicine\|Cardiovascular Disease	$5,846.73	55	46
Allopathic & Osteopathic Physicians\|Internal Medicine\|Endocrinology, Diabetes & Metabolism	$5,688.44	33	12
Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Acute Care	$4,984.74	321	132
Physician Assistants & Advanced Practice Nursing Providers\|Physician Assistant\|Medical	$4,617.61	291	100
Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Adult Health	$4,036.68	268	93
Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Gerontology	$2,065.25	134	34
Allopathic & Osteopathic Physicians\|Internal Medicine\|Sleep Medicine	$1,844.25	128	50
Allopathic & Osteopathic Physicians\|Emergency Medicine	$1,525.77	11	9
Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Primary Care	$862.32	49	29
Allopathic & Osteopathic Physicians\|Psychiatry & Neurology\|Sleep Medicine	$786.40	59	7
Allopathic & Osteopathic Physicians\|Internal Medicine\|Rheumatology	$538.75	30	11
Allopathic & Osteopathic Physicians\|Hospitalist	$392.23	26	20
Allopathic & Osteopathic Physicians\|Internal Medicine\|Infectious Disease	$357.02	24	9
Allopathic & Osteopathic Physicians\|Internal Medicine\|Geriatric Medicine	$321.47	15	12
Allopathic & Osteopathic Physicians\|Physical Medicine & Rehabilitation	$320.36	15	2
Allopathic & Osteopathic Physicians\|Internal Medicine\|Nephrology	$312.29	20	4
Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Critical Care Medicine	$309.61	20	8
Allopathic & Osteopathic Physicians\|Internal Medicine\|Gastroenterology	$302.31	13	4

Providers listed (4,957)

Sorted by name. Sort by amount instead

Provider	Specialty	State	Reported by this company
FREDERIC D SEIFER	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	NY	$6,916.73
FREDERICK L TRENT	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	FL	$93.02
FREDERICK SPENCER GASKIN	Allopathic & Osteopathic Physicians\|Internal Medicine\|Cardiovascular Disease	AL	$12.99
FREDICIA L STEMBRIDGE	Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Adult Health	GA	$2.24
FURQAN SIDDIQI	Allopathic & Osteopathic Physicians\|Internal Medicine\|Critical Care Medicine	MI	$24.10
GABRIEL A ZAIETTA	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	TN	$153.46
GABRIEL THORNTON	Allopathic & Osteopathic Physicians\|Internal Medicine\|Critical Care Medicine	GA	$27.12
GABRIELA HUNKO	Allopathic & Osteopathic Physicians\|Internal Medicine	TX	$17.73
GABRIELLE HENRIKSEN	Allopathic & Osteopathic Physicians\|Hospitalist	NJ	$15.91
GAETON D LORINO	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	AL	$54.04
GAGANDIP B SINGH	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	AZ	$130.43
GAJA SHAUGHNESSY	Allopathic & Osteopathic Physicians\|Internal Medicine\|Sleep Medicine	FL	$42.56
GAMAL S ESKANDER	Allopathic & Osteopathic Physicians\|Family Medicine	TN	$19.97
GANESH K AKULA	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	FL	$14.86
GARRETT REED BIRD	Allopathic & Osteopathic Physicians\|Internal Medicine\|Sleep Medicine	UT	$27.56
GARRETT WADE MORGAN	Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Family	OK	$53.66
GARRETTSON ELLIS	Allopathic & Osteopathic Physicians\|Internal Medicine\|Critical Care Medicine	TN	$18.50
GARRISON F CHRISTIAN	Allopathic & Osteopathic Physicians\|Family Medicine	FL	$5.43
GARY A AARONSON	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	PA	$61.87
GARY B KAPLAN	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	OH	$17.34
GARY B LANGNAS	Allopathic & Osteopathic Physicians\|Internal Medicine	MI	$23.09
GARY GROSSMAN	Allopathic & Osteopathic Physicians\|Internal Medicine	NV	$13.75
GARY J ALEXANDER	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	UT	$17.12
GARY K SPORN	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	FL	$18.12
GARY L WEINSTEIN	Allopathic & Osteopathic Physicians\|Internal Medicine\|Critical Care Medicine	TX	$16.28
GARY M DESHAZO	Allopathic & Osteopathic Physicians\|Family Medicine	NV	$4.44
GARY W GILLIAM	Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Family	VA	$46.50
GAURANG PATEL	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	NJ	$29.21
GAURAV J PATEL	Allopathic & Osteopathic Physicians\|Internal Medicine\|Sleep Medicine	PA	$21.16
GAURAV KUMAR	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	IN	$53.28
GAURAV S SHAH	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	FL	$43.09
GAUTAM K SAMADDER	Allopathic & Osteopathic Physicians\|Internal Medicine\|Sleep Medicine	OH	$20.66
GAYLE LAVERN LOMBARD	Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Family	AL	$21.23
GEETA D RODE	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	MI	$43.06
GEOFF S SZABO	Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Family	TN	$197.81
GEOFFREY A LOH	Allopathic & Osteopathic Physicians\|Internal Medicine\|Critical Care Medicine	OH	$37.63
GEOFFREY L KOFF	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	PA	$54.99
GEORGE A APERGIS	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	NY	$123.78
GEORGE BOTROS	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	MA	$18.68
GEORGE BURGESS	Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Family	TX	$171.37
GEORGE C BAZACO	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	VA	$36.59
GEORGE C PARIDES	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	AZ	$6.11
GEORGE DUY LINH THOMSON	Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Family	NV	$31.83
GEORGE FRANKLYN BIRKS	Allopathic & Osteopathic Physicians\|Internal Medicine	CO	$27.40
GEORGE G GASS	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	TX	$58.87
GEORGE J CIECHANOWSKI	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	NJ	$16.58
GEORGE J PROFETA	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	NY	$25.86
GEORGE J RUBEIZ	Allopathic & Osteopathic Physicians\|Internal Medicine\|Pulmonary Disease	IN	$145.57
GEORGE K KNIGHT	Physician Assistants & Advanced Practice Nursing Providers\|Nurse Practitioner\|Family	OH	$8.73
GEORGE L MARKS	Allopathic & Osteopathic Physicians\|Internal Medicine	CA	$22.34