NPPES file of Aug 9, 2026

Thu Nguyen

Anesthesiology Physician · San Diego, CA

Thu Nguyen is an anesthesiology physician with a practice address in San Diego, California, and NPI 1689037632, issued on Mar 29, 2016. Check the license (California A155083, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689037632
Name
Thu Nguyen
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
A155083 CA
Self-reported in NPPES; status is on the state search
Practice location
3626 Ruffin RD, San Diego, CA 92123
Phone
(858) 565-9666
Enumerated
Mar 29, 2016
Record last updated
Jul 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200720001615); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 2016
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 3626 Ruffin RD

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

  1. Rolando Abada, M.D.Anesthesiology Physician1952319071
  2. Yvonne Ahn, MDAnesthesiology Physician1447407275
  3. Anthony Alarcon, M.D.Anesthesiology Physician1972745370
  4. Arti Amin, M.D.Anesthesiology Physician1124349774
  5. John Arnold, M.D.Anesthesiology Physician1306853585
  6. Gus Atkins, M.D.Anesthesiology Physician1821075987

Verify Thu Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A155083
    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 MIPS final score for 2023 (Medicare payment program): 82.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score100.0
  2. Costout of 100 · 30%92.2
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Bills Medicare through one group practice

  1. Anesthesia Service Medical GroupSan Diego, CA

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

Thu Nguyen among 7,571 anesthesiology physician records in California

Thu Nguyen 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 2016, is newer than 80% of them.

  • NPI issued2016 · 80% of these records are older, 17% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2016 · median 2006 among the 4,868 with a school on file
  • Record last updated2020 · 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).

686 anesthesiology physician records list a practice address in San Diego

They are 686 of the 52,937 NPPES records with a practice address in San Diego, and 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Gus Atkins, M.D.San Diego, CA 921231821075987
  2. Paul Cattafi, DOSan Diego, CA 921231538151543
  3. Fei Chen, M.D.San Diego, CA 921231144290701
  4. Eric Clark, M.D.San Diego, CA 921231720078470
  5. William Connell, M.D.San Diego, CA 921231609848027
  6. Hisham El-Tayeb, M.D.San Diego, CA 921231679544084
  7. Janice Fernandez, M.D.San Diego, CA 921231578549788
  8. Robert Howard, M.D.San Diego, CA 921231003889528

Common questions

What is Thu Nguyen's NPI number?

Thu Nguyen's National Provider Identifier (NPI) is 1689037632, issued on Mar 29, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Thu Nguyen located?

The NPPES record lists a practice address at 3626 Ruffin RD, San Diego, CA, 92123. Phone: (858) 565-9666. Providers update this record themselves, so call before visiting.

How can I verify Thu Nguyen's license?

NPPES lists California license number A155083, 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 Thu Nguyen's MIPS final score?

The 2023 MIPS final score is 82.7 of 100. 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.