NPPES file of Aug 9, 2026

Diana K. Nguyen, DO

Pediatric Infectious Diseases Physician · Galveston, TX

Diana K. Nguyen, DO is a pediatric infectious diseases physician with a practice address in Galveston, Texas, and NPI 1225270473, issued on Apr 2, 2009. Check the license (Texas R3723, as entered in NPPES) on the Texas Medical Board; 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
1225270473
Name
Diana K. Nguyen
Credential
DO
Primary taxonomy
Pediatric Infectious Diseases Physician 2080P0208X
License number
R3723 TX
Self-reported in NPPES; status is on the state search
Practice location
400 Harborside Dr Suite 103, Galveston, TX 77555
Phone
(409) 772-3695
Enumerated
Apr 2, 2009
Record last updated
Apr 19, 2024
Fax
(409) 772-3680
Medicare enrollment
Enrolled (PECOS I20170816001412); accepts Medicare assignment
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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Verify Diana K. Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license R3723
    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 Texas license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 75 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 score73.8
  2. Costout of 100 · 30%47.8
  3. Promoting interoperabilityout of 100 · 25%94.0
  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: $24.82

1 payment: food and beverage; the largest payer was Genentech USA, Inc. The 294 providers of this specialty with any payment received $9,151.53 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diana Nguyen$24.82
  2. Specialty average$9,151.53

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. Texas Childrens Physician GroupHouston, TX

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

Diana K. Nguyen among 106 pediatric infectious diseases physician records in Texas

Diana K. Nguyen, DO is one of 106 pediatric infectious diseases physician records with a practice address in Texas. 54% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 69% of them.

  • NPI issued2009 · 69% of these records are older, 26% newer
  • In a Medicare fileYes · 54% of these records are
  • In the CMS Doctors and Clinicians fileYes · 33% of these records are
  • Graduated2009 · median 2003 among the 35 with a school on file
  • Record last updated2024 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0208X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Infectious Diseases Physician providers in Texas

There are 106 pediatric infectious diseases physician records in Texas.

The 8 pediatric infectious diseases physician records with the nearest ZIP codes

  1. Antonella Casola, M.D.Galveston, TX 775551194817965
  2. Tasnee Chonmaitree, M.D.Galveston, TX 775551417049289
  3. Sarah Labuda, MDGalveston, TX 775551023209012
  4. Janak Patel, M.D.Galveston, TX 775551336231141
  5. Judith Rowen, M.D.Galveston, TX 775551740372416
  6. Lawrence Stanberry, M.D.Galveston, TX 775551295827905
  7. Ankhi Dutta, M.D., M.P.H.Conroe, TX 773841235378563
  8. Rene Amaya, MDHouston, TX 770431134125370

Common questions

What is Diana K. Nguyen, DO's NPI number?

Diana K. Nguyen, DO's National Provider Identifier (NPI) is 1225270473, issued on Apr 2, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Diana K. Nguyen, DO located?

The NPPES record lists a practice address at 400 Harborside Dr Suite 103, Galveston, TX, 77555. Phone: (409) 772-3695. Providers update this record themselves, so call before visiting.

How can I verify Diana K. Nguyen, DO's license?

NPPES lists Texas license number R3723, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Diana K. Nguyen, DO's MIPS final score?

The 2023 MIPS final score is 75 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.