NPPES file of Aug 9, 2026

Ginger January Tsai-Nguyen, M.D.

Critical Care Medicine (Internal Medicine) Physician · Dallas, TX

Ginger January Tsai-Nguyen, M.D. is a critical care medicine (internal medicine) physician with a practice address in Dallas, Texas, and NPI 1255775359, issued on Apr 19, 2013. Check the license (Texas R3447, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255775359
Name
Ginger January Tsai-Nguyen
Credential
M.D.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
R3447 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 19, 2013
Record last updated
Jul 5, 2022
Medicare enrollment
Enrolled (PECOS I20170821001756); accepts Medicare assignment
Medical or professional school
Texas A & M University System, Hsc, College Of Medicine, 2013
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 critical care medicine (internal medicine) physician records → All 413 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 Ginger January Tsai-Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license R3447    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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66% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

238 Medicare Part D claims for 53 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 75% of claims.

  1. Ginger Tsai-Nguyen238
  2. Specialty average696

Most prescribed

  1. Trelegy Ellipta44 claims
  2. Breztri Aerosphere34 claims
  3. Albuterol Sulfate Hfa18 claims
  4. Spiriva Respimat18 claims
  5. Stiolto Respimat15 claims
  6. Azithromycin14 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.

Industry payments in 2024: $348.20

15 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ginger Tsai-Nguyen$348.20
  2. Specialty average$2,958.68

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. Healthtexas Provider NetworkDallas, TX

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

Ginger January Tsai-Nguyen among 413 critical care medicine (internal medicine) physician records in Texas

Ginger January Tsai-Nguyen, M.D. is one of 413 critical care medicine (internal medicine) physician records with a practice address in Texas. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 66% of them.

  • NPI issued2013 · 66% of these records are older, 29% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 84% of these records are
  • Graduated2013 · median 2007 among the 346 with a school on file
  • Record last updated2022 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Texas

There are 413 critical care medicine (internal medicine) physician records in Texas.

All 413 in Texas → Every provider in Dallas → Critical Care Medicine (Internal Medicine) Physician nationwide →

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Terra Agha, PA-CDallas, TX 752461154874568
  2. Tanveer Ahmed, MDDallas, TX 752461265491724
  3. Firehiwot Berhane, MDDallas, TX 752461316332703
  4. Kimber Foust, MDDallas, TX 752461013176718
  5. William Haden, MDDallas, TX 752461730119009
  6. Adam Hayek, D.O.Dallas, TX 752461215294426
  7. Nithya Iyer, M.D.Dallas, TX 752461912075458
  8. Jilalu Kelbe, MDDallas, TX 752461316233505

Common questions

What is Ginger January Tsai-Nguyen, M.D.'s NPI number?

Ginger January Tsai-Nguyen, M.D.'s National Provider Identifier (NPI) is 1255775359, issued on Apr 19, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Ginger January Tsai-Nguyen, M.D. 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 Ginger January Tsai-Nguyen, M.D.'s license?

NPPES lists Texas license number R3447, 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 Ginger January Tsai-Nguyen, M.D. prescribe under Medicare Part D?

In 2024, Ginger January Tsai-Nguyen, M.D. had 238 Medicare Part D claims for 53 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.

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.