Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

STEPHAN T ZMUGG

Allopathic & Osteopathic Physicians Orthopaedic Surgery

NPI
1396030680
CMS profile
290406
Location
OAKLAND, CA

General Payments · PY2018–2024

$25,114.11

  • Reported across 29 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$2,811.29

17 records · 0 disputed

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

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Travel and Lodging $2,199.22 8
Food and Beverage $612.07 9

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Stryker Corporation $2,766.87 16
MEDACTA USA, INC. $44.42 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $22,253.74 11
PY2019 $49.08 1
PY2024 $2,811.29 17

Payment records · PY2024 (17)

Sorted by paying entity, then date · as published by CMS

Program year 2024 20182019 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
MEDACTA USA, INC. $44.42 10/16/2024 Food and Beverage Undisputed 01/23/2026 1143690946 CMS
Stryker Corporation $64.76 05/09/2024 Food and Beverage Undisputed 01/23/2026 1120025046 CMS
Stryker Corporation $174.71 05/09/2024 Food and Beverage Undisputed 01/23/2026 1120025048 CMS
Stryker Corporation $750.60 06/07/2024 Travel and Lodging Undisputed 01/23/2026 1120025050 CMS
Stryker Corporation $24.00 06/14/2024 Food and Beverage Undisputed 01/23/2026 1120025056 CMS
Stryker Corporation $36.00 06/14/2024 Food and Beverage Undisputed 01/23/2026 1120025060 CMS
Stryker Corporation $9.64 06/14/2024 Travel and Lodging Undisputed 01/23/2026 1120025062 CMS
Stryker Corporation $138.97 06/14/2024 Food and Beverage Undisputed 01/23/2026 1120025064 CMS
Stryker Corporation $24.00 06/15/2024 Food and Beverage Undisputed 01/23/2026 1120025068 CMS
Stryker Corporation $40.00 06/15/2024 Food and Beverage Undisputed 01/23/2026 1120025072 CMS
Stryker Corporation $65.21 06/15/2024 Food and Beverage Undisputed 01/23/2026 1120025074 CMS
Stryker Corporation $679.80 06/16/2024 Travel and Lodging Undisputed 01/23/2026 1120025076 CMS
Stryker Corporation $221.70 06/17/2024 Travel and Lodging Undisputed 01/23/2026 1120025078 CMS
Stryker Corporation $283.78 06/18/2024 Travel and Lodging Undisputed 01/23/2026 1120025080 CMS
Stryker Corporation $192.22 06/20/2024 Travel and Lodging Undisputed 01/23/2026 1120025082 CMS
Stryker Corporation $28.69 06/25/2024 Travel and Lodging Undisputed 01/23/2026 1120025084 CMS
Stryker Corporation $32.79 06/25/2024 Travel and Lodging Undisputed 01/23/2026 1120025086 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.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.