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

Covered recipient · General Payments record

DOUGLAS D ZHANG

Allopathic & Osteopathic Physicians Family Medicine Geriatric Medicine

NPI
1023074341
CMS profile
91459
Location
SAN LEANDRO, 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.

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General Payments · PY2021 · Entire year

$3,660.36

196 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . 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 ↗

By nature of payment

PY2021 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $3,660.36 196

By paying entity

PY2021 · entire year · sorted by reported total

Page 1 of 4; records 1–50 of 196 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

DOUGLAS D ZHANG

NPI 1023074341 · CMS profile ID 91459

Allopathic & Osteopathic Physicians / Family Medicine / Geriatric Medicine

SAN LEANDRO, 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.

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.

General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 4; records 1–50 of 196 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1023074341?year=2021&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
DOUGLAS D ZHANG, NPI 1023074341, CMS profile ID 91459. General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 4; records 1–50 of 196 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1023074341?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
APA 7
IndustryPayments. (2026). DOUGLAS D ZHANG, NPI 1023074341, CMS profile ID 91459. General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 4; records 1–50 of 196 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1023074341?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
Bluebook
DOUGLAS D ZHANG, NPI 1023074341, CMS profile ID 91459, IndustryPayments, General Payments, PY2021; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 4; records 1–50 of 196 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202. https://industrypayments.org/provider/npi-1023074341?year=2021&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

196 matching records · $3,660.36 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 196 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 196.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Novo Nordisk Inc $9.3912/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811731115 CMS
Janssen Pharmaceuticals, Inc $22.2812/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788944281 CMS
GlaxoSmithKline, LLC. $12.5012/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 801993103 CMS
AbbVie Inc. $23.1012/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796304729 CMS
Biohaven Pharmaceuticals, Inc. $29.3512/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 852663113 CMS
AbbVie Inc. $4.9212/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796304727 CMS
Novo Nordisk Inc $3.5712/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811511221 CMS
Mylan Specialty L.P. $26.4412/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 965443701 CMS
Novo Nordisk Inc $16.9912/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 810836081 CMS
AstraZeneca Pharmaceuticals LP $21.8512/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829836101 CMS
Amarin Pharma Inc. $13.7612/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 815302033 CMS
AbbVie Inc. $22.7212/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796304725 CMS
SANOFI-AVENTIS U.S. LLC $21.1512/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 843524595 CMS
Biohaven Pharmaceuticals, Inc. $1.6712/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 852663111 CMS
Janssen Pharmaceuticals, Inc $6.4812/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788944285 CMS
Novartis Pharmaceuticals Corporation $20.0611/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 813387681 CMS
PFIZER INC. $11.5511/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833180305 CMS
Amgen Inc. $15.2411/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 825281055 CMS
Janssen Pharmaceuticals, Inc $15.3311/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788944295 CMS
Alfasigma USA, Inc. $20.7211/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 853050563 CMS
Biohaven Pharmaceuticals, Inc. $23.0011/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 852663109 CMS
Novo Nordisk Inc $6.7511/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811219893 CMS
AstraZeneca Pharmaceuticals LP $12.4611/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829805519 CMS
GlaxoSmithKline, LLC. $19.1111/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 803081721 CMS
Janssen Pharmaceuticals, Inc $23.2811/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788944317 CMS
AbbVie Inc. $22.3811/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796304723 CMS
Amarin Pharma Inc. $22.0811/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 815302037 CMS
AbbVie Inc. $8.7511/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796304721 CMS
Biohaven Pharmaceuticals, Inc. $1.8911/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 852663107 CMS
Novo Nordisk Inc $10.8011/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811511215 CMS
Mylan Specialty L.P. $21.2211/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 965437637 CMS
AbbVie Inc. $21.1910/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796304719 CMS
Novartis Pharmaceuticals Corporation $16.7110/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 813387677 CMS
Novo Nordisk Inc $17.9510/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811643985 CMS
PFIZER INC. $28.2910/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 832953213 CMS
AbbVie Inc. $26.6510/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796304717 CMS
E.R. Squibb & Sons, L.L.C. $18.8510/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 783529227 CMS
Novo Nordisk Inc $3.8210/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811511211 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $21.4310/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 763678832 CMS
SANOFI-AVENTIS U.S. LLC $22.7610/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 843524579 CMS
AstraZeneca Pharmaceuticals LP $21.2110/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 830060485 CMS
Novo Nordisk Inc $5.3610/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811731111 CMS
Eisai Inc. $33.2810/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 818021191 CMS
Novo Nordisk Inc $13.6510/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811643981 CMS
AbbVie Inc. $21.2710/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796304715 CMS
Janssen Pharmaceuticals, Inc $12.4410/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 788944293 CMS
Biohaven Pharmaceuticals, Inc. $26.3810/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 852663105 CMS
Amarin Pharma Inc. $23.6710/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 815243775 CMS
Novartis Pharmaceuticals Corporation $22.0109/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 813387673 CMS
AbbVie Inc. $29.6109/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 796304713 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $3,977.32 184
PY2020 $3,658.56 198
PY2021 $3,660.36 196
PY2022 $3,288.13 163
PY2023 $2,430.50 102
PY2024 $1,611.97 74
PY2025 $1,427.00 69

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 and profile matching
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.