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Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

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 YANG

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1609005479
CMS profile
1091999
Location
NORTHRIDGE, CA

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

$12,526.82

137 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 paymentAmountRecords
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $7,380.00 5
Food and Beverage $3,100.11 128
Honoraria $2,000.00 1
Travel and Lodging $28.00 1
Education $18.71 2

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
Bayer HealthCare Pharmaceuticals Inc. $7,912.58 25
SCPHARMACEUTICALS INC. $2,040.44 4
Amgen Inc. $561.17 29
Acerta Pharma LLC $507.07 13
Otsuka America Pharmaceutical, Inc. $322.53 12
NOVARTIS PHARMACEUTICALS CORPORATION $302.68 14
AKEBIA THERAPEUTICS INC $181.26 8
Relypsa, Inc. $161.39 9
Lilly USA, LLC $143.55 6
GlaxoSmithKline, LLC. $100.50 4
Boehringer Ingelheim Pharmaceuticals, Inc. $74.81 3
Retrophin, Inc. $55.38 3
Novo Nordisk AS $44.62 2
Aurinia Pharma U.S., Inc. $43.16 2
Ardelyx, Inc. $32.46 1
Inspire Medical Systems, Inc. $23.97 1
CALLIDITAS THERAPEUTICS US INC. $19.25 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,787.78 87
PY2020 $7,504.88 137
PY2021 $5,773.10 197
PY2022 $7,870.09 148
PY2023 $13,973.78 154
PY2024 $16,741.89 178
PY2025 $12,526.82 137

Payment records · PY2025 (137)

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

Program year 2025 201920202021202220232024 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
AKEBIA THERAPEUTICS INC $23.55 12/11/2025 Food and Beverage No dispute reported 06/30/2026 1241825868 CMS
Amgen Inc. $24.01 12/10/2025 Food and Beverage No dispute reported 06/30/2026 1228307226 CMS
Bayer Healthcare Pharmaceuticals Inc. $8.32 12/09/2025 Food and Beverage No dispute reported 06/30/2026 1225913311 CMS
Otsuka America Pharmaceutical, Inc. $17.08 12/09/2025 Food and Beverage No dispute reported 06/30/2026 1227544441 CMS
SCPHARMACEUTICALS INC. $2,000.00 12/02/2025 Honoraria No dispute reported 06/30/2026 1228208014 CMS
AstraZeneca Pharmaceuticals LP $30.79 11/20/2025 Food and Beverage No dispute reported 06/30/2026 1206678521 CMS
AKEBIA THERAPEUTICS INC $27.63 11/18/2025 Food and Beverage No dispute reported 06/30/2026 1241824218 CMS
Travere Therapeutics, Inc. $7.50 11/18/2025 Food and Beverage No dispute reported 06/30/2026 1244417850 CMS
Calliditas Therapeutics US Inc. $19.25 11/12/2025 Food and Beverage No dispute reported 06/30/2026 1235010925 CMS
Bayer Healthcare Pharmaceuticals Inc. $8.16 10/28/2025 Food and Beverage No dispute reported 06/30/2026 1225913284 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $18.44 10/28/2025 Food and Beverage No dispute reported 06/30/2026 1223022312 CMS
Novartis Pharmaceuticals Corporation $34.98 10/23/2025 Food and Beverage No dispute reported 06/30/2026 1200396812 CMS
Otsuka America Pharmaceutical, Inc. $32.92 10/22/2025 Food and Beverage No dispute reported 06/30/2026 1227544437 CMS
GlaxoSmithKline, LLC. $28.28 10/21/2025 Food and Beverage No dispute reported 06/30/2026 1191437459 CMS
Lilly USA, LLC $16.88 10/17/2025 Food and Beverage No dispute reported 06/30/2026 1186943609 CMS
Amgen Inc. $6.71 10/15/2025 Education No dispute reported 06/30/2026 1226888663 CMS
Amgen Inc. $27.73 10/15/2025 Food and Beverage No dispute reported 06/30/2026 1228307244 CMS
Amgen Inc. $20.48 10/14/2025 Food and Beverage No dispute reported 06/30/2026 1228307216 CMS
AstraZeneca Pharmaceuticals LP $29.16 10/09/2025 Food and Beverage No dispute reported 06/30/2026 1206797584 CMS
Bayer Healthcare Pharmaceuticals Inc. $23.03 10/07/2025 Food and Beverage No dispute reported 06/30/2026 1225913288 CMS
Novartis Pharmaceuticals Corporation $29.41 10/06/2025 Food and Beverage No dispute reported 06/30/2026 1200526266 CMS
GlaxoSmithKline, LLC. $32.65 10/03/2025 Food and Beverage No dispute reported 06/30/2026 1191469619 CMS
Amgen Inc. $21.17 10/01/2025 Food and Beverage No dispute reported 06/30/2026 1228307220 CMS
Bayer Healthcare Pharmaceuticals Inc. $1,640.00 09/22/2025 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 1225913315 CMS
Otsuka America Pharmaceutical, Inc. $28.24 09/17/2025 Food and Beverage No dispute reported 06/30/2026 1227544433 CMS
Amgen Inc. $20.45 09/09/2025 Food and Beverage No dispute reported 06/30/2026 1228307222 CMS
Bayer Healthcare Pharmaceuticals Inc. $12.56 09/05/2025 Food and Beverage No dispute reported 06/30/2026 1225913268 CMS
Bayer Healthcare Pharmaceuticals Inc. $127.56 09/05/2025 Food and Beverage No dispute reported 06/30/2026 1225913272 CMS
Vifor Pharma, Inc. $32.32 09/04/2025 Food and Beverage No dispute reported 06/30/2026 1172020801 CMS
AKEBIA THERAPEUTICS INC $21.35 08/27/2025 Food and Beverage No dispute reported 06/30/2026 1241820451 CMS
Otsuka America Pharmaceutical, Inc. $24.23 08/22/2025 Food and Beverage No dispute reported 06/30/2026 1227544431 CMS
AstraZeneca Pharmaceuticals LP $14.40 08/21/2025 Food and Beverage No dispute reported 06/30/2026 1206983960 CMS
Amgen Inc. $20.70 08/19/2025 Food and Beverage No dispute reported 06/30/2026 1228307236 CMS
Amgen Inc. $20.02 08/13/2025 Food and Beverage No dispute reported 06/30/2026 1228307252 CMS
Bayer Healthcare Pharmaceuticals Inc. $6.93 08/13/2025 Food and Beverage No dispute reported 06/30/2026 1225913264 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $28.57 08/05/2025 Food and Beverage No dispute reported 06/30/2026 1223022310 CMS
Novartis Pharmaceuticals Corporation $29.90 08/04/2025 Food and Beverage No dispute reported 06/30/2026 1200526245 CMS
Amgen Inc. $21.62 07/29/2025 Food and Beverage No dispute reported 06/30/2026 1228307234 CMS
Bayer Healthcare Pharmaceuticals Inc. $23.60 07/18/2025 Food and Beverage No dispute reported 06/30/2026 1225913221 CMS
Otsuka America Pharmaceutical, Inc. $25.54 07/18/2025 Food and Beverage No dispute reported 06/30/2026 1227544428 CMS
Vifor Pharma, Inc. $33.42 07/16/2025 Food and Beverage No dispute reported 06/30/2026 1172020797 CMS
Lilly USA, LLC $22.48 07/14/2025 Food and Beverage No dispute reported 06/30/2026 1186943611 CMS
Lilly USA, LLC $29.15 07/14/2025 Food and Beverage No dispute reported 06/30/2026 1186987964 CMS
Aurinia Pharma U.S., Inc. $23.97 07/10/2025 Food and Beverage No dispute reported 06/30/2026 1249412334 CMS
SCPHARMACEUTICALS INC. $11.65 07/09/2025 Food and Beverage No dispute reported 06/30/2026 1228191578 CMS
AstraZeneca Pharmaceuticals LP $25.14 07/02/2025 Food and Beverage No dispute reported 06/30/2026 1207069452 CMS
SCPHARMACEUTICALS INC. $12.26 07/02/2025 Food and Beverage No dispute reported 06/30/2026 1228191019 CMS
AKEBIA THERAPEUTICS INC $27.26 06/24/2025 Food and Beverage No dispute reported 06/30/2026 1241818812 CMS
Amgen Inc. $6.58 06/23/2025 Food and Beverage No dispute reported 06/30/2026 1227172765 CMS
Novartis Pharmaceuticals Corporation $23.25 06/23/2025 Food and Beverage No dispute reported 06/30/2026 1200526243 CMS
Bayer Healthcare Pharmaceuticals Inc. $15.94 06/19/2025 Food and Beverage No dispute reported 06/30/2026 1225913249 CMS
Aurinia Pharma U.S., Inc. $19.19 06/16/2025 Food and Beverage No dispute reported 06/30/2026 1249408950 CMS
Novartis Pharmaceuticals Corporation $34.09 06/11/2025 Food and Beverage No dispute reported 06/30/2026 1200526219 CMS
AstraZeneca Pharmaceuticals LP $21.65 06/10/2025 Food and Beverage No dispute reported 06/30/2026 1206761281 CMS
GlaxoSmithKline, LLC. $25.62 06/09/2025 Food and Beverage No dispute reported 06/30/2026 1191121884 CMS
Travere Therapeutics, Inc. $25.82 06/05/2025 Food and Beverage No dispute reported 06/30/2026 1244417854 CMS
Novartis Pharmaceuticals Corporation $17.74 06/02/2025 Food and Beverage No dispute reported 06/30/2026 1200526217 CMS
Otsuka America Pharmaceutical, Inc. $27.02 06/02/2025 Food and Beverage No dispute reported 06/30/2026 1227544425 CMS
Vifor Pharma, Inc. $29.32 05/29/2025 Food and Beverage No dispute reported 06/30/2026 1172020795 CMS
Amgen Inc. $0.45 05/28/2025 Food and Beverage No dispute reported 06/30/2026 1227172759 CMS
Amgen Inc. $24.29 05/28/2025 Food and Beverage No dispute reported 06/30/2026 1228307218 CMS
Amgen Inc. $33.81 05/27/2025 Food and Beverage No dispute reported 06/30/2026 1228307224 CMS
Bayer Healthcare Pharmaceuticals Inc. $28.00 05/21/2025 Travel and Lodging No dispute reported 06/30/2026 1225913303 CMS
SCPHARMACEUTICALS INC. $16.53 05/21/2025 Food and Beverage No dispute reported 06/30/2026 1228186701 CMS
Otsuka America Pharmaceutical, Inc. $26.09 05/20/2025 Food and Beverage No dispute reported 06/30/2026 1227544421 CMS
Otsuka America Pharmaceutical, Inc. $29.18 05/19/2025 Food and Beverage No dispute reported 06/30/2026 1227544418 CMS
Bayer Healthcare Pharmaceuticals Inc. $1,230.00 05/16/2025 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 1225913290 CMS
Bayer Healthcare Pharmaceuticals Inc. $2,255.00 05/16/2025 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 1225913306 CMS
Bayer Healthcare Pharmaceuticals Inc. $128.61 05/15/2025 Food and Beverage No dispute reported 06/30/2026 1225913280 CMS
Novo Nordisk Inc $21.72 05/15/2025 Food and Beverage No dispute reported 06/30/2026 1188814034 CMS
AstraZeneca Pharmaceuticals LP $31.26 05/14/2025 Food and Beverage No dispute reported 06/30/2026 1207038788 CMS
Bayer Healthcare Pharmaceuticals Inc. $29.71 05/14/2025 Food and Beverage No dispute reported 06/30/2026 1225913276 CMS
Vifor Pharma, Inc. $12.00 05/12/2025 Education No dispute reported 06/30/2026 1172020799 CMS
Novartis Pharmaceuticals Corporation $24.89 05/07/2025 Food and Beverage No dispute reported 06/30/2026 1200526233 CMS
Novartis Pharmaceuticals Corporation $5.29 05/07/2025 Food and Beverage No dispute reported 06/30/2026 1200526235 CMS
Amgen Inc. $28.47 05/06/2025 Food and Beverage No dispute reported 06/30/2026 1228307242 CMS
AstraZeneca Pharmaceuticals LP $125.00 04/30/2025 Food and Beverage No dispute reported 06/30/2026 1206229768 CMS
Bayer Healthcare Pharmaceuticals Inc. $19.34 04/30/2025 Food and Beverage No dispute reported 06/30/2026 1225913241 CMS
Bayer Healthcare Pharmaceuticals Inc. $12.66 04/30/2025 Food and Beverage No dispute reported 06/30/2026 1225913253 CMS
Novo Nordisk Inc $22.90 04/30/2025 Food and Beverage No dispute reported 06/30/2026 1189009907 CMS
Vifor Pharma, Inc. $5.69 04/29/2025 Food and Beverage No dispute reported 06/30/2026 1172020791 CMS
Vifor Pharma, Inc. $6.26 04/29/2025 Food and Beverage No dispute reported 06/30/2026 1172020793 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $27.80 04/23/2025 Food and Beverage No dispute reported 06/30/2026 1223022308 CMS
Amgen Inc. $9.69 04/22/2025 Food and Beverage No dispute reported 06/30/2026 1227172757 CMS
Lilly USA, LLC $20.69 04/21/2025 Food and Beverage No dispute reported 06/30/2026 1187008478 CMS
AstraZeneca Pharmaceuticals LP $28.85 04/17/2025 Food and Beverage No dispute reported 06/30/2026 1206656106 CMS
Lilly USA, LLC $26.70 04/17/2025 Food and Beverage No dispute reported 06/30/2026 1186943607 CMS
Novartis Pharmaceuticals Corporation $28.16 04/17/2025 Food and Beverage No dispute reported 06/30/2026 1200526229 CMS
Novartis Pharmaceuticals Corporation $3.69 04/17/2025 Food and Beverage No dispute reported 06/30/2026 1200526231 CMS
Novartis Pharmaceuticals Corporation $18.95 04/16/2025 Food and Beverage No dispute reported 06/30/2026 1200526221 CMS
Novartis Pharmaceuticals Corporation $14.78 04/14/2025 Food and Beverage No dispute reported 06/30/2026 1200526215 CMS
Amgen Inc. $16.15 04/10/2025 Food and Beverage No dispute reported 06/30/2026 1228307248 CMS
Otsuka America Pharmaceutical, Inc. $29.20 04/07/2025 Food and Beverage No dispute reported 06/30/2026 1227544413 CMS
Amgen Inc. $11.76 04/03/2025 Food and Beverage No dispute reported 06/30/2026 1227172751 CMS
Bayer Healthcare Pharmaceuticals Inc. $15.60 04/03/2025 Food and Beverage No dispute reported 06/30/2026 1225913229 CMS
AKEBIA THERAPEUTICS INC $29.36 03/26/2025 Food and Beverage No dispute reported 06/30/2026 1241817268 CMS
Amgen Inc. $8.11 03/24/2025 Food and Beverage No dispute reported 06/30/2026 1227172749 CMS
Bayer Healthcare Pharmaceuticals Inc. $7.62 03/20/2025 Food and Beverage No dispute reported 06/30/2026 1225913225 CMS
Bayer Healthcare Pharmaceuticals Inc. $3.69 03/20/2025 Food and Beverage No dispute reported 06/30/2026 1225913257 CMS
AstraZeneca Pharmaceuticals LP $20.60 03/18/2025 Food and Beverage No dispute reported 06/30/2026 1206891267 CMS
Bayer Healthcare Pharmaceuticals Inc. $17.90 03/18/2025 Food and Beverage No dispute reported 06/30/2026 1225913261 CMS
Otsuka America Pharmaceutical, Inc. $26.88 03/13/2025 Food and Beverage No dispute reported 06/30/2026 1227544409 CMS
Amgen Inc. $11.12 03/12/2025 Food and Beverage No dispute reported 06/30/2026 1227172761 CMS
Inspire Medical Systems, Inc. $23.97 03/10/2025 Food and Beverage No dispute reported 06/30/2026 1251520932 CMS
Amgen Inc. $24.97 03/05/2025 Food and Beverage No dispute reported 06/30/2026 1228307228 CMS
Bayer Healthcare Pharmaceuticals Inc. $1,640.00 03/05/2025 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 1225913299 CMS
Travere Therapeutics, Inc. $22.06 03/04/2025 Food and Beverage No dispute reported 06/30/2026 1244417852 CMS
Novartis Pharmaceuticals Corporation $7.62 03/03/2025 Food and Beverage No dispute reported 06/30/2026 1200526203 CMS
AKEBIA THERAPEUTICS INC $23.23 02/26/2025 Food and Beverage No dispute reported 06/30/2026 1241816634 CMS
Vifor Pharma, Inc. $7.76 02/26/2025 Food and Beverage No dispute reported 06/30/2026 1172020789 CMS
AstraZeneca Pharmaceuticals LP $31.11 02/19/2025 Food and Beverage No dispute reported 06/30/2026 1206378270 CMS
Vifor Pharma, Inc. $10.12 02/19/2025 Food and Beverage No dispute reported 06/30/2026 1172020787 CMS
Amgen Inc. $32.22 02/17/2025 Food and Beverage No dispute reported 06/30/2026 1228307238 CMS
Lilly USA, LLC $27.65 02/17/2025 Food and Beverage No dispute reported 06/30/2026 1186996558 CMS
Ardelyx, Inc. $32.46 02/13/2025 Food and Beverage No dispute reported 06/30/2026 1247894146 CMS
Bayer Healthcare Pharmaceuticals Inc. $3.23 02/12/2025 Food and Beverage No dispute reported 06/30/2026 1225913245 CMS
Amgen Inc. $28.00 02/11/2025 Food and Beverage No dispute reported 06/30/2026 1228307240 CMS
Amgen Inc. $8.44 02/07/2025 Food and Beverage No dispute reported 06/30/2026 1227172755 CMS
Otsuka America Pharmaceutical, Inc. $27.99 02/07/2025 Food and Beverage No dispute reported 06/30/2026 1227544404 CMS
Novartis Pharmaceuticals Corporation $29.93 02/03/2025 Food and Beverage No dispute reported 06/30/2026 1200526201 CMS
Bayer Healthcare Pharmaceuticals Inc. $615.00 02/01/2025 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 1225913294 CMS
Amgen Inc. $6.93 01/30/2025 Food and Beverage No dispute reported 06/30/2026 1227172763 CMS
Vifor Pharma, Inc. $24.50 01/29/2025 Food and Beverage No dispute reported 06/30/2026 1172020785 CMS
Bayer Healthcare Pharmaceuticals Inc. $24.83 01/28/2025 Food and Beverage No dispute reported 06/30/2026 1225913237 CMS
GlaxoSmithKline, LLC. $13.95 01/24/2025 Food and Beverage No dispute reported 06/30/2026 1191447154 CMS
Otsuka America Pharmaceutical, Inc. $28.16 01/24/2025 Food and Beverage No dispute reported 06/30/2026 1227544401 CMS
AstraZeneca Pharmaceuticals LP $23.12 01/23/2025 Food and Beverage No dispute reported 06/30/2026 1206768165 CMS
AstraZeneca Pharmaceuticals LP $27.61 01/22/2025 Food and Beverage No dispute reported 06/30/2026 1206265330 CMS
AstraZeneca Pharmaceuticals LP $98.38 01/22/2025 Food and Beverage No dispute reported 06/30/2026 1206894546 CMS
Amgen Inc. $8.23 01/15/2025 Food and Beverage No dispute reported 06/30/2026 1227172753 CMS
Amgen Inc. $26.41 01/13/2025 Food and Beverage No dispute reported 06/30/2026 1228307232 CMS
AKEBIA THERAPEUTICS INC $1.88 01/10/2025 Food and Beverage No dispute reported 06/30/2026 1241815819 CMS
AKEBIA THERAPEUTICS INC $27.00 01/10/2025 Food and Beverage No dispute reported 06/30/2026 1241815831 CMS
Amgen Inc. $31.80 01/08/2025 Food and Beverage No dispute reported 06/30/2026 1228307246 CMS
Amgen Inc. $26.65 01/07/2025 Food and Beverage No dispute reported 06/30/2026 1228307250 CMS
Bayer Healthcare Pharmaceuticals Inc. $15.29 01/07/2025 Food and Beverage No dispute reported 06/30/2026 1225913233 CMS
Amgen Inc. $34.20 01/06/2025 Food and Beverage No dispute reported 06/30/2026 1228307230 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-1609005479

Plain
WILLIAM YANG, NPI 1609005479. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1609005479.
APA 7
IndustryPayments. (2026). WILLIAM YANG, NPI 1609005479 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1609005479
Bluebook
WILLIAM YANG, NPI 1609005479, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1609005479.

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