NPPES file of Aug 9, 2026

Stephan Zmugg, M.D.

Orthopaedic Surgery Physician · Oakland, CA

Stephan Zmugg, M.D. is an orthopaedic surgery physician with a practice address in Oakland, California, and NPI 1396030680, issued on Jun 14, 2011. Check the license (California A156721, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396030680
Name
Stephan Zmugg
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License numbers
A156721 CA
288700 NY
Q8402 TX
Self-reported in NPPES; status is on the state search
Practice location
275 W Macarthur Blvd, Oakland, CA 94611
Phone
(510) 752-1000
Enumerated
Jun 14, 2011
Record last updated
Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 275 W Macarthur Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. David Aaronson, MDUrology Physician1215053129
  2. Paul-Andre Abboud, M.D.Emergency Medicine Physician1710065503
  3. Brittany Abeldt, MDPsychiatry Physician1982353884
  4. Bilal Abu-Alrub, DOStudent in an Organized Health Care Education/Training Program1609760768
  5. Walter Acuna, MDInternal Medicine Physician1972655108
  6. Brett Adams, MDStudent in an Organized Health Care Education/Training Program1841731098

Verify Stephan Zmugg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A156721
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $2,811.29

17 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephan Zmugg$2,811
  2. Specialty average$23,023

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Stephan Zmugg among 2,276 orthopaedic surgery physician records in California

Stephan Zmugg, M.D. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 75% of them.

  • NPI issued2011 · 75% of these records are older, 23% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2021 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in California

There are 2,276 orthopaedic surgery physician records in California.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Thomas Barber, MDOakland, CA 946111760560569
  2. Stefano Bini, MDOakland, CA 946111619055415
  3. Robert Burri, MDOakland, CA 946111861570467
  4. John Cummins, MDOakland, CA 946111558449322
  5. Eric Eisemon, MDOakland, CA 946111093988974
  6. Joshua Hatch, MDOakland, CA 946111881772689
  7. Robert Hoffman, MDOakland, CA 946111699854398
  8. Todd Lincoln, MDOakland, CA 946111245318021

Common questions

What is Stephan Zmugg, M.D.'s NPI number?

Stephan Zmugg, M.D.'s National Provider Identifier (NPI) is 1396030680, issued on Jun 14, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Stephan Zmugg, M.D. located?

The NPPES record lists a practice address at 275 W Macarthur Blvd, Oakland, CA, 94611. Phone: (510) 752-1000. Providers update this record themselves, so call before visiting.

How can I verify Stephan Zmugg, M.D.'s license?

NPPES lists California license number A156721, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.