NPPES file of Aug 9, 2026

Michelle Nguyen, MD

Gastroenterology Physician · Los Gatos, CA

Michelle Nguyen, MD is a gastroenterology physician with a practice address in Los Gatos, California, and NPI 1811967920, issued on Jan 23, 2006. Check the license (California A74533, 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
1811967920
Name
Michelle Nguyen
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A74533 CA
Self-reported in NPPES; status is on the state search
Practice location
14901 National Ave, Los Gatos, CA 95032
Phone
(408) 471-2222
Enumerated
Jan 23, 2006
Record last updated
Oct 22, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(408) 471-2200
Medicare enrollment
Enrolled (PECOS I20040624001581); accepts Medicare assignment
Medical or professional school
University Of Michigan Medical School, 1998
Telehealth
Offers telehealth (CMS)
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 14901 National Ave

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

  1. Trevor Bostdorf, MPT/MTCPhysical Therapist1205819513
  2. Gordon Levin, MDOrthopaedic Surgery Physician1427085745
  3. Michael Luna, CCC-SLP, M.A.Speech-Language Pathologist1952623092
  4. Sumit Majumder, M.D.Infectious Disease Physician1245317692
  5. Rachana Palnitkar, M.D.Infectious Disease Physician1508050790
  6. Taral PatelOrthopedic Physical Therapist1508074782

Verify Michelle 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 A74533
    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

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23% fewer Medicare Part D claims than the average gastroenterology physician in 2024

624 Medicare Part D claims for 208 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Michelle Nguyen624
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium95 claims
  2. Famotidine83 claims
  3. Omeprazole46 claims
  4. Creon32 claims
  5. Zenpep22 claims
  6. Cholestyramine20 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 100 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. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $8,448.42

95 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michelle Nguyen$8,448.42
  2. Specialty average$5,015.95

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. Genesis Healthcare Partners PCLos Gatos, CA

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

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California.

Other gastroenterology physician records in California

  1. David Aarons, MDLodi, CA1619081379
  2. Constante Abaya, MDOxnard, CA1003918459
  3. Sadeea Abbasi, M.D., PH.D.Los Angeles, CA1366713513
  4. Basim Abdelkarim, MDUpland, CA1932217544
  5. Homan Abdollahzadeh, MDPalm Springs, CA1184634826
  6. John Abdulian, M.D.Fresno, CA1437114113
  7. Hussein Abidali, DORancho Cucamonga, CA1205274768
  8. Alaa Abousaif, MDOrange, CA1235124108
  9. Donald Abrahm, M.D.Newport Beach, CA1215022405
  10. Maria Abreu, M.D.West Hollywood, CA1598793374

Common questions

What is Michelle Nguyen, MD's NPI number?

Michelle Nguyen, MD's National Provider Identifier (NPI) is 1811967920, issued on Jan 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michelle Nguyen, MD located?

The NPPES record lists a practice address at 14901 National Ave, Los Gatos, CA, 95032. Phone: (408) 471-2222. Providers update this record themselves, so call before visiting.

How can I verify Michelle Nguyen, MD's license?

NPPES lists California license number A74533, 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.

How much does Michelle Nguyen, MD prescribe under Medicare Part D?

In 2024, Michelle Nguyen, MD had 624 Medicare Part D claims for 208 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Michelle Nguyen, MD's MIPS final score?

The 2023 MIPS final score is 100 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.