NPPES file of Aug 9, 2026

Diana Kim Nguyen, MD

Dermatology Physician · Richardson, TX

Diana Kim Nguyen, MD is a dermatology physician with a practice address in Richardson, Texas, and NPI 1750385688, issued on Jun 9, 2005. Check the license (Texas L0877, 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
1750385688
Name
Diana Kim Nguyen
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
L0877 TX
Self-reported in NPPES; status is on the state search
Practice location
3005 E Renner RD, Richardson, TX 75082
Phone
(972) 699-0000
Enumerated
Jun 9, 2005
Record last updated
May 28, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(972) 699-0004
Medicaid ID
802791 TX
Medicare enrollment
Enrolled (PECOS I20050301000256); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 1998
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 3005 E Renner RD

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

  1. Kara Pretzlaff, M.D.Dermatology Physician1760878029

Verify Diana Kim Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L0877
    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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65% fewer Medicare Part D claims than the average dermatology physician in 2024

280 Medicare Part D claims for 140 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Diana Nguyen280
  2. Specialty average797

Most prescribed

  1. Triamcinolone Acetonide52 claims
  2. Ketoconazole43 claims
  3. Fluorouracil27 claims
  4. Clobetasol Propionate25 claims
  5. Valacyclovir24 claims
  6. Metronidazole23 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): 0 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 score0.0
  2. Costnot scored (reweighted)
  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).

Industry payments in 2024: $1,552.60

72 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diana Nguyen$1,552.60
  2. Specialty average$8,544.61

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. Dermatology Specialists, PARichardson, TX

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

Diana Kim Nguyen among 1,172 dermatology physician records in Texas

Diana Kim Nguyen, MD is one of 1,172 dermatology physician records with a practice address in Texas. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 90% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated1998 · median 2008 among the 926 with a school on file
  • Record last updated2010 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Texas

There are 1,172 dermatology physician records in Texas.

The 8 dermatology physician records with the nearest ZIP codes

  1. Carole Aponte, MDRichardson, TX 750821053374033
  2. Cameron Coury, MDRichardson, TX 750821104020767
  3. Kara Pretzlaff, M.D.Richardson, TX 750821760878029
  4. Sara Chapman, MDRichardson, TX 750801891801106
  5. Angie Koriakos, DORichardson, TX 750801396060794
  6. Kelsie Riemenschneider, MDRichardson, TX 750801508397837
  7. Donald Glass, M.D., PH,D,Prosper, TX 750781508052036
  8. Susanne Lockhart, MDProsper, TX 750781497857585

Common questions

What is Diana Kim Nguyen, MD's NPI number?

Diana Kim Nguyen, MD's National Provider Identifier (NPI) is 1750385688, issued on Jun 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Diana Kim Nguyen, MD located?

The NPPES record lists a practice address at 3005 E Renner RD, Richardson, TX, 75082. Phone: (972) 699-0000. Providers update this record themselves, so call before visiting.

How can I verify Diana Kim Nguyen, MD's license?

NPPES lists Texas license number L0877, 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.

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

In 2024, Diana Kim Nguyen, MD had 280 Medicare Part D claims for 140 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Diana Kim Nguyen, MD's MIPS final score?

The 2023 MIPS final score is 0 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.