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

WILLIAM A GREISNER

Allopathic & Osteopathic Physicians Allergy & Immunology

NPI: 1720095334
CMS profile: 259552
Location: LEXINGTON, KY

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

$14,404.31

134 records · 0 disputed

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”
— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“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
Consulting Fee	$8,849.24	7
Food and Beverage	$4,194.87	122
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$1,000.00	1
Travel and Lodging	$360.20	4

By paying entity

PY2025 · sorted by reported total

Paying entity	Amount	Records
Lilly USA, LLC	$5,383.16	9
Kaleo, Inc.	$3,136.48	5
Genentech USA, Inc.	$2,040.22	9
GENZYME CORPORATION	$1,016.98	26
CSL Behring	$509.75	23
Acerta Pharma LLC	$415.47	8
Regeneron Healthcare Solutions, Inc.	$337.61	8
ADMA BioManufacturing LLC	$294.24	2
ARS Pharmaceuticals Operations, Inc.	$204.95	4
Grifols USA, LLC	$167.27	3
GlaxoSmithKline, LLC.	$166.73	10
Genentech, Inc.	$110.34	2
Takeda Pharmaceuticals U.S.A., Inc.	$96.01	3
PFIZER INC.	$86.84	4
Amgen Inc.	$85.75	4
LEO Pharma Inc.	$58.81	2
CYCLE PHARMACEUTICALS INC	$55.31	2
Blueprint Medicines Corporation	$51.86	2
OptiNose US, Inc.	$46.72	2
Azurity Pharmaceuticals, Inc.	$37.93	2
Organon LLC	$32.54	1
Octapharma USA, Inc.	$26.08	1
Pharming Healthcare, Inc.	$25.76	1
Ionis Pharmaceuticals, Inc.	$17.50	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2019	$4,384.49	67
PY2020	$1,859.75	65
PY2021	$2,403.42	103
PY2022	$2,755.27	121
PY2023	$5,530.94	118
PY2024	$8,001.13	93
PY2025	$14,404.31	134

Payment records · PY2025 (134)

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
CSL Behring	$8.63	12/18/2025	Food and Beverage	No dispute reported	06/30/2026	1232382120	CMS
GENZYME CORPORATION	$11.01	12/18/2025	Food and Beverage	No dispute reported	06/30/2026	1233279164	CMS
PFIZER INC.	$22.59	12/17/2025	Food and Beverage	No dispute reported	06/30/2026	1229914647	CMS
AstraZeneca Pharmaceuticals LP	$15.30	12/16/2025	Food and Beverage	No dispute reported	06/30/2026	1215351565	CMS
CSL Behring	$33.91	12/15/2025	Food and Beverage	No dispute reported	06/30/2026	1232382118	CMS
Amgen Inc.	$19.62	12/12/2025	Food and Beverage	No dispute reported	06/30/2026	1228446773	CMS
GENZYME CORPORATION	$28.00	12/10/2025	Food and Beverage	No dispute reported	06/30/2026	1233279154	CMS
GENZYME CORPORATION	$25.00	12/09/2025	Food and Beverage	No dispute reported	06/30/2026	1233279166	CMS
GlaxoSmithKline, LLC.	$4.75	12/08/2025	Food and Beverage	No dispute reported	06/30/2026	1190914935	CMS
Lilly USA, LLC	$5.00	12/03/2025	Travel and Lodging	No dispute reported	06/30/2026	1186943625	CMS
Lilly USA, LLC	$284.20	12/03/2025	Travel and Lodging	No dispute reported	06/30/2026	1186971110	CMS
Lilly USA, LLC	$12.00	12/03/2025	Travel and Lodging	No dispute reported	06/30/2026	1186989300	CMS
Lilly USA, LLC	$59.00	12/03/2025	Travel and Lodging	No dispute reported	06/30/2026	1186996570	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$31.99	12/02/2025	Food and Beverage	No dispute reported	06/30/2026	1223927998	CMS
Lilly USA, LLC	$3,375.00	11/25/2025	Consulting Fee	No dispute reported	06/30/2026	1187050927	CMS
Lilly USA, LLC	$1,575.00	11/25/2025	Consulting Fee	No dispute reported	06/30/2026	1187050929	CMS
GENZYME CORPORATION	$15.88	11/18/2025	Food and Beverage	No dispute reported	06/30/2026	1233279146	CMS
CSL Behring	$14.10	11/17/2025	Food and Beverage	No dispute reported	06/30/2026	1232382116	CMS
Regeneron Healthcare Solutions, Inc.	$24.39	11/13/2025	Food and Beverage	No dispute reported	06/30/2026	1212932737	CMS
Genentech, Inc.	$45.84	11/09/2025	Food and Beverage	No dispute reported	06/30/2026	1211607591	CMS
Regeneron Healthcare Solutions, Inc.	$93.61	11/09/2025	Food and Beverage	No dispute reported	06/30/2026	1212932735	CMS
GENZYME CORPORATION	$130.46	11/08/2025	Food and Beverage	No dispute reported	06/30/2026	1233279142	CMS
GENZYME CORPORATION	$46.21	11/08/2025	Food and Beverage	No dispute reported	06/30/2026	1233279158	CMS
ADMA BioManufacturing LLC	$121.58	11/07/2025	Consulting Fee	No dispute reported	06/30/2026	1211422188	CMS
Genentech USA, Inc.	$128.82	11/07/2025	Food and Beverage	No dispute reported	06/30/2026	1211607583	CMS
AstraZeneca Pharmaceuticals LP	$6.70	11/06/2025	Food and Beverage	No dispute reported	06/30/2026	1214803098	CMS
GENZYME CORPORATION	$38.86	11/03/2025	Food and Beverage	No dispute reported	06/30/2026	1233279150	CMS
CSL Behring	$14.53	10/31/2025	Food and Beverage	No dispute reported	06/30/2026	1232382112	CMS
CSL Behring	$9.78	10/31/2025	Food and Beverage	No dispute reported	06/30/2026	1232382114	CMS
Genentech USA, Inc.	$16.82	10/30/2025	Food and Beverage	No dispute reported	06/30/2026	1211607576	CMS
Genentech USA, Inc.	$1.87	10/30/2025	Food and Beverage	No dispute reported	06/30/2026	1211607580	CMS
Azurity Pharmaceuticals, Inc.	$16.83	10/27/2025	Food and Beverage	No dispute reported	06/30/2026	1242671748	CMS
CSL Behring	$34.46	10/20/2025	Food and Beverage	No dispute reported	06/30/2026	1232382110	CMS
GENZYME CORPORATION	$14.19	10/14/2025	Food and Beverage	No dispute reported	06/30/2026	1233279140	CMS
CSL Behring	$15.36	10/09/2025	Food and Beverage	No dispute reported	06/30/2026	1232382108	CMS
Amgen Inc.	$21.46	10/08/2025	Food and Beverage	No dispute reported	06/30/2026	1228446771	CMS
ADMA BioManufacturing LLC	$172.66	10/07/2025	Consulting Fee	No dispute reported	06/30/2026	1211422190	CMS
GlaxoSmithKline, LLC.	$10.60	10/06/2025	Food and Beverage	No dispute reported	06/30/2026	1190972456	CMS
GENZYME CORPORATION	$31.35	09/30/2025	Food and Beverage	No dispute reported	06/30/2026	1233279124	CMS
Regeneron Healthcare Solutions, Inc.	$24.39	09/26/2025	Food and Beverage	No dispute reported	06/30/2026	1212932733	CMS
AstraZeneca Pharmaceuticals LP	$16.19	09/24/2025	Food and Beverage	No dispute reported	06/30/2026	1214798734	CMS
GlaxoSmithKline, LLC.	$29.95	09/22/2025	Food and Beverage	No dispute reported	06/30/2026	1190928192	CMS
CSL Behring	$29.02	09/20/2025	Food and Beverage	No dispute reported	06/30/2026	1232382104	CMS
Genentech USA, Inc.	$23.79	09/18/2025	Food and Beverage	No dispute reported	06/30/2026	1211607572	CMS
Ionis Pharmaceuticals, Inc.	$17.50	09/18/2025	Food and Beverage	No dispute reported	06/30/2026	1246783095	CMS
GlaxoSmithKline, LLC.	$9.36	09/06/2025	Food and Beverage	No dispute reported	06/30/2026	1190717721	CMS
CSL Behring	$9.35	08/27/2025	Food and Beverage	No dispute reported	06/30/2026	1232382094	CMS
GENZYME CORPORATION	$34.73	08/27/2025	Food and Beverage	No dispute reported	06/30/2026	1233279116	CMS
Azurity Pharmaceuticals, Inc.	$21.10	08/18/2025	Food and Beverage	No dispute reported	06/30/2026	1242671746	CMS
GENZYME CORPORATION	$13.08	08/18/2025	Food and Beverage	No dispute reported	06/30/2026	1233279122	CMS
Regeneron Healthcare Solutions, Inc.	$21.39	08/14/2025	Food and Beverage	No dispute reported	06/30/2026	1212932731	CMS
GlaxoSmithKline, LLC.	$5.36	08/13/2025	Food and Beverage	No dispute reported	06/30/2026	1191024562	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$28.76	08/13/2025	Food and Beverage	No dispute reported	06/30/2026	1223915864	CMS
GENZYME CORPORATION	$23.99	08/12/2025	Food and Beverage	No dispute reported	06/30/2026	1233279118	CMS
CSL Behring	$12.12	08/01/2025	Food and Beverage	No dispute reported	06/30/2026	1232382090	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$35.26	07/29/2025	Food and Beverage	No dispute reported	06/30/2026	1223935350	CMS
AstraZeneca Pharmaceuticals LP	$15.85	07/28/2025	Food and Beverage	No dispute reported	06/30/2026	1214787935	CMS
Genentech USA, Inc.	$1,605.00	07/26/2025	Consulting Fee	No dispute reported	06/30/2026	1211607595	CMS
PFIZER INC.	$20.47	07/25/2025	Food and Beverage	No dispute reported	06/30/2026	1228987987	CMS
ARS Pharmaceuticals Operations, Inc.	$134.38	07/23/2025	Food and Beverage	No dispute reported	06/30/2026	1245876208	CMS
GlaxoSmithKline, LLC.	$23.92	07/22/2025	Food and Beverage	No dispute reported	06/30/2026	1190373606	CMS
CSL Behring	$42.07	07/21/2025	Food and Beverage	No dispute reported	06/30/2026	1232382086	CMS
GENZYME CORPORATION	$40.62	07/18/2025	Food and Beverage	No dispute reported	06/30/2026	1233279108	CMS
Grifols USA, LLC	$32.92	07/18/2025	Food and Beverage	No dispute reported	06/30/2026	1249543770	CMS
CSL Behring	$31.12	07/14/2025	Food and Beverage	No dispute reported	06/30/2026	1232382084	CMS
Amgen Inc.	$19.95	07/09/2025	Food and Beverage	No dispute reported	06/30/2026	1228446777	CMS
Genentech USA, Inc.	$20.02	07/07/2025	Food and Beverage	No dispute reported	06/30/2026	1211607568	CMS
Octapharma USA, Inc.	$26.08	06/30/2025	Food and Beverage	No dispute reported	06/30/2026	1245077931	CMS
ARS Pharmaceuticals Operations, Inc.	$27.04	06/27/2025	Food and Beverage	No dispute reported	06/30/2026	1245876206	CMS
GENZYME CORPORATION	$35.10	06/26/2025	Food and Beverage	No dispute reported	06/30/2026	1233279106	CMS
CSL Behring	$20.82	06/25/2025	Food and Beverage	No dispute reported	06/30/2026	1232382076	CMS
CSL Behring	$22.64	06/20/2025	Food and Beverage	No dispute reported	06/30/2026	1232382074	CMS
Regeneron Healthcare Solutions, Inc.	$23.76	06/20/2025	Food and Beverage	No dispute reported	06/30/2026	1212932729	CMS
CSL Behring	$6.98	06/13/2025	Food and Beverage	No dispute reported	06/30/2026	1232382072	CMS
GENZYME CORPORATION	$10.04	06/12/2025	Food and Beverage	No dispute reported	06/30/2026	1233279102	CMS
PFIZER INC.	$24.55	06/11/2025	Food and Beverage	No dispute reported	06/30/2026	1228908174	CMS
GlaxoSmithKline, LLC.	$27.56	05/27/2025	Food and Beverage	No dispute reported	06/30/2026	1190345248	CMS
CSL Behring	$6.56	05/23/2025	Food and Beverage	No dispute reported	06/30/2026	1232382068	CMS
GENZYME CORPORATION	$34.47	05/12/2025	Food and Beverage	No dispute reported	06/30/2026	1233279104	CMS
Regeneron Healthcare Solutions, Inc.	$19.44	05/08/2025	Food and Beverage	No dispute reported	06/30/2026	1212932727	CMS
CSL Behring	$32.42	05/05/2025	Food and Beverage	No dispute reported	06/30/2026	1232382066	CMS
Cycle Pharmaceuticals Inc	$26.46	05/01/2025	Food and Beverage	No dispute reported	06/30/2026	1248902369	CMS
GENZYME CORPORATION	$8.64	04/24/2025	Food and Beverage	No dispute reported	06/30/2026	1233279076	CMS
LEO Pharma Inc.	$28.18	04/24/2025	Food and Beverage	No dispute reported	06/30/2026	1252008410	CMS
Grifols USA, LLC	$107.39	04/23/2025	Food and Beverage	No dispute reported	06/30/2026	1249543765	CMS
GlaxoSmithKline, LLC.	$22.70	04/22/2025	Food and Beverage	No dispute reported	06/30/2026	1190664285	CMS
CSL Behring	$29.47	04/21/2025	Food and Beverage	No dispute reported	06/30/2026	1232382060	CMS
Regeneron Healthcare Solutions, Inc.	$23.89	04/10/2025	Food and Beverage	No dispute reported	06/30/2026	1212932725	CMS
GENZYME CORPORATION	$20.18	04/04/2025	Food and Beverage	No dispute reported	06/30/2026	1233279074	CMS
Amgen Inc.	$24.72	04/03/2025	Food and Beverage	No dispute reported	06/30/2026	1228446775	CMS
CSL Behring	$30.44	03/31/2025	Food and Beverage	No dispute reported	06/30/2026	1232382056	CMS
Pharming Healthcare, Inc.	$25.76	03/29/2025	Food and Beverage	No dispute reported	06/30/2026	1200797961	CMS
CSL Behring	$33.12	03/27/2025	Food and Beverage	No dispute reported	06/30/2026	1232382054	CMS
Optinose US, Inc.	$24.34	03/25/2025	Food and Beverage	No dispute reported	06/30/2026	1163253270	CMS
GlaxoSmithKline, LLC.	$12.67	03/24/2025	Food and Beverage	No dispute reported	06/30/2026	1191815755	CMS
GlaxoSmithKline, LLC.	$19.86	03/21/2025	Food and Beverage	No dispute reported	06/30/2026	1191703653	CMS
Genentech USA, Inc.	$12.57	03/20/2025	Food and Beverage	No dispute reported	06/30/2026	1211607566	CMS
LEO Pharma Inc.	$30.63	03/19/2025	Food and Beverage	No dispute reported	06/30/2026	1252008408	CMS
AstraZeneca Pharmaceuticals LP	$21.81	03/17/2025	Food and Beverage	No dispute reported	06/30/2026	1215326157	CMS
GENZYME CORPORATION	$43.14	03/14/2025	Food and Beverage	No dispute reported	06/30/2026	1233279066	CMS
ARS Pharmaceuticals Operations, Inc.	$18.48	03/12/2025	Food and Beverage	No dispute reported	06/30/2026	1245876204	CMS
Grifols USA, LLC	$26.96	03/08/2025	Food and Beverage	No dispute reported	06/30/2026	1249543759	CMS
Regeneron Healthcare Solutions, Inc.	$106.74	03/08/2025	Food and Beverage	No dispute reported	06/30/2026	1212932723	CMS
Blueprint Medicines Corporation	$14.62	03/06/2025	Food and Beverage	No dispute reported	06/30/2026	1235824259	CMS
CSL Behring	$12.58	03/05/2025	Food and Beverage	No dispute reported	06/30/2026	1232382048	CMS
GENZYME CORPORATION	$8.75	03/04/2025	Food and Beverage	No dispute reported	06/30/2026	1233279054	CMS
Organon LLC	$32.54	03/04/2025	Food and Beverage	No dispute reported	06/30/2026	1237762846	CMS
GENZYME CORPORATION	$60.68	03/02/2025	Food and Beverage	No dispute reported	06/30/2026	1233279090	CMS
GENZYME CORPORATION	$60.68	03/02/2025	Food and Beverage	No dispute reported	06/30/2026	1233279092	CMS
kaleo, Inc.	$41.52	03/02/2025	Food and Beverage	No dispute reported	06/30/2026	1240100474	CMS
AstraZeneca Pharmaceuticals LP	$90.09	03/01/2025	Food and Beverage	No dispute reported	06/30/2026	1214791147	CMS
AstraZeneca Pharmaceuticals LP	$113.42	03/01/2025	Food and Beverage	No dispute reported	06/30/2026	1215333212	CMS
Genentech, Inc.	$64.50	03/01/2025	Food and Beverage	No dispute reported	06/30/2026	1211607587	CMS
GENZYME CORPORATION	$92.50	03/01/2025	Food and Beverage	No dispute reported	06/30/2026	1233279062	CMS
GENZYME CORPORATION	$28.43	03/01/2025	Food and Beverage	No dispute reported	06/30/2026	1233279072	CMS
Blueprint Medicines Corporation	$37.24	02/28/2025	Food and Beverage	No dispute reported	06/30/2026	1235824257	CMS
Genentech USA, Inc.	$87.16	02/28/2025	Food and Beverage	No dispute reported	06/30/2026	1211607557	CMS
Genentech USA, Inc.	$144.17	02/28/2025	Food and Beverage	No dispute reported	06/30/2026	1211607561	CMS
Lilly USA, LLC	$35.38	02/28/2025	Food and Beverage	No dispute reported	06/30/2026	1186989298	CMS
Lilly USA, LLC	$12.31	02/28/2025	Food and Beverage	No dispute reported	06/30/2026	1187050923	CMS
Lilly USA, LLC	$25.27	02/28/2025	Food and Beverage	No dispute reported	06/30/2026	1187050925	CMS
CSL Behring	$31.83	02/25/2025	Food and Beverage	No dispute reported	06/30/2026	1232382042	CMS
PFIZER INC.	$19.23	02/24/2025	Food and Beverage	No dispute reported	06/30/2026	1231381396	CMS
Optinose US, Inc.	$22.38	02/20/2025	Food and Beverage	No dispute reported	06/30/2026	1163253272	CMS
Cycle Pharmaceuticals Inc	$28.85	02/19/2025	Food and Beverage	No dispute reported	06/30/2026	1248902367	CMS
CSL Behring	$28.44	02/13/2025	Food and Beverage	No dispute reported	06/30/2026	1232382038	CMS
kaleo, Inc.	$1,000.00	01/30/2025	Consulting Fee	No dispute reported	06/30/2026	1240100480	CMS
kaleo, Inc.	$94.96	01/27/2025	Food and Beverage	No dispute reported	06/30/2026	1240100472	CMS
AstraZeneca Pharmaceuticals LP	$136.11	01/24/2025	Food and Beverage	No dispute reported	06/30/2026	1214770824	CMS
GENZYME CORPORATION	$114.72	01/22/2025	Food and Beverage	No dispute reported	06/30/2026	1233279058	CMS
kaleo, Inc.	$1,000.00	01/09/2025	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	1240100476	CMS
GENZYME CORPORATION	$46.27	01/08/2025	Food and Beverage	No dispute reported	06/30/2026	1233279040	CMS
kaleo, Inc.	$1,000.00	01/08/2025	Consulting Fee	No dispute reported	06/30/2026	1240100478	CMS
ARS Pharmaceuticals Operations, Inc.	$25.05	01/02/2025	Food and Beverage	No dispute reported	06/30/2026	1245876202	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-1720095334

Plain: WILLIAM A GREISNER, NPI 1720095334. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1720095334.
APA 7: IndustryPayments. (2026). WILLIAM A GREISNER, NPI 1720095334 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1720095334
Bluebook: WILLIAM A GREISNER, NPI 1720095334, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1720095334.

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