NPPES file of Aug 9, 2026

Marina Swee, DO

Anesthesiology Physician · Castro Valley, CA

Marina Swee, DO is an anesthesiology physician with a practice address in Castro Valley, California, and NPI 1124077730, issued on May 9, 2006. Check the license (California 20A6748, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124077730
Name
Marina Swee
Credential
DO
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
20A6748 CA
Self-reported in NPPES; status is on the state search
Practice location
20998 Redwood RD, Castro Valley, CA 94546
Phone
(510) 538-2828
Enumerated
May 9, 2006
Record last updated
Jul 13, 2026
Medicaid ID
00AX67480 CA
Medicare enrollment
Enrolled (PECOS I20050622001204); accepts Medicare assignment
Medical or professional school
Midwestern University, Chicago College Of Osteopathic Med, 1994
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 20998 Redwood RD

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

  1. Corinne BourdillonCertified Registered Nurse Anesthetist1609435874
  2. Jeffrey Do, MDAnesthesiology Physician1225088552
  3. Fedor Logvin, MDAnesthesiology Physician1871542746
  4. Charles Lopez, MDAnesthesiology Physician1184673170
  5. Steven Mandelberg, MDAnesthesiology Physician1881644870
  6. Fair Wang, MDAnesthesiology Physician1619926078

Verify Marina Swee in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A6748
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 71 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score60.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $38.10

1 payment: food and beverage; the largest payer was Avanos Medical. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marina Swee$38.10
  2. Specialty average$669.59

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

Bills Medicare through one group practice

  1. Alameda Anesthesia Associates Medical Group IncSan Leandro, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marina Swee among 7,571 anesthesiology physician records in California

Marina Swee, DO is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 53% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1994 · median 2006 among the 4,868 with a school on file
  • Record last updated2026 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 anesthesiology physician records list a practice address in Castro Valley

They are 22 of the 999 NPPES records with a practice address in Castro Valley, and 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. David Black, MDCastro Valley, CA 945461659323244
  2. Alfred Blum, MDCastro Valley, CA 945461770533341
  3. Penna Bui, M.D.Castro Valley, CA 945461225045149
  4. Jeffrey Do, MDCastro Valley, CA 945461225088552
  5. Christian Eirich, MDCastro Valley, CA 945461518915883
  6. Warren Gee, MDCastro Valley, CA 945461528143575
  7. Lawrence Holm, MDCastro Valley, CA 945461477506707
  8. Fedor Logvin, MDCastro Valley, CA 945461871542746

Common questions

What is Marina Swee, DO's NPI number?

Marina Swee, DO's National Provider Identifier (NPI) is 1124077730, issued on May 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marina Swee, DO located?

The NPPES record lists a practice address at 20998 Redwood RD, Castro Valley, CA, 94546. Phone: (510) 538-2828. Providers update this record themselves, so call before visiting.

How can I verify Marina Swee, DO's license?

NPPES lists California license number 20A6748, 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.

What is Marina Swee, DO's MIPS final score?

The 2023 MIPS final score is 71 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.