NPPES file of Aug 9, 2026

Diem Q. Ngo

Internal Medicine Physician · Dallas, TX

Diem Q. Ngo is an internal medicine physician with a practice address in Dallas, Texas, and NPI 1134758733, issued on Apr 6, 2020. Check the license (Texas U1978, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134758733
Name
Diem Q. Ngo
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
U1978 TX
Self-reported in NPPES; status is on the state search
Practice location
3500 Gaston Ave, Dallas, TX 75246
Phone
(214) 820-2361
Enumerated
Apr 6, 2020
Record last updated
Jul 23, 2025
Medicare enrollment
Enrolled (PECOS I20250803000111); 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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8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →

Also registered at 3500 Gaston Ave

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

  1. Natalia Abbey, M.D.Neonatal-Perinatal Medicine Physician1790051480
  2. Yezan Abderrahman, M.D.Anesthesiology Physician1215460878
  3. Omar AboudawoudStudent in an Organized Health Care Education/Training Program1679327670
  4. Scott Adams, M.D.Diagnostic Radiology Physician1336359132
  5. Jazmin Agee, PHARMDPharmacist1831823236
  6. Terra Agha, PA-CCritical Care Medicine (Internal Medicine) Physician1154874568

Verify Diem Q. Ngo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license U1978    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

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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Bills Medicare through one group practice

  1. Healthtexas Provider NetworkDallas, TX

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

Diem Q. Ngo among 9,175 internal medicine physician records in Texas

Diem Q. Ngo is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 85% of them.

  • NPI issued2020 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2020 · median 2004 among the 6,088 with a school on file
  • Record last updated2025 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

956 internal medicine physician records list a practice address in Dallas

They are 956 of the 36,304 NPPES records with a practice address in Dallas, and 9,175 internal medicine physician records in Texas.

All 9,175 in Texas → Every provider in Dallas → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Robert Allison, M.D.Dallas, TX 752461750339719
  2. Uyen-Thi Cao, MDDallas, TX 752461639100555
  3. Susan Favour, MDDallas, TX 752461205895562
  4. Linsheng Guo, M.D.Dallas, TX 752461053365510
  5. Donald Kennerly, MDDallas, TX 752461538124763
  6. Susan Kohl, MDDallas, TX 752461528098811
  7. Ruth Krishnan, M.D.Dallas, TX 752461265480685
  8. Andrew Masica, M.D.Dallas, TX 752461881625440

Common questions

What is Diem Q. Ngo's NPI number?

Diem Q. Ngo's National Provider Identifier (NPI) is 1134758733, issued on Apr 6, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Diem Q. Ngo located?

The NPPES record lists a practice address at 3500 Gaston Ave, Dallas, TX, 75246. Phone: (214) 820-2361. Providers update this record themselves, so call before visiting.

How can I verify Diem Q. Ngo's license?

NPPES lists Texas license number U1978, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.