NPPES file of Aug 9, 2026

Diem Kieu Thi Tran, MD

Neurological Surgery Physician · Loma Linda, CA

Diem Kieu Thi Tran, MD is a neurological surgery physician with a practice address in Loma Linda, California, and NPI 1790168987, issued on Jul 7, 2015. Check the license (California A139908, 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
1790168987
Name
Diem Kieu Thi Tran
Credential
MD
Primary taxonomy
Neurological Surgery Physician 207T00000X
License numbers
A139908 CA
MD61135447 WA
Self-reported in NPPES; status is on the state search
Practice location
11370 Anderson St # 2600, Loma Linda, CA 92354
Phone
(909) 558-6388
Enumerated
Jul 7, 2015
Record last updated
Sep 15, 2025
Medicaid ID
1790168987 WA
Medicare enrollment
Enrolled (PECOS I20220725000750); accepts Medicare assignment
Medical or professional school
University Of Utah School Of Medicine, 2014
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 Diem Kieu Thi Tran in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A139908
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 85.2 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 score71.8
  2. Costout of 100 · 30%64.5
  3. Promoting interoperabilityout of 100 · 25%82.0
  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: $101.42

3 payments; by number, the most common kind was food and beverage; the largest payer was Integra LifeSciences Corporation. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diem Kieu Tran$101
  2. Specialty average$14,926

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. Faculty Physicians And Surgeons OF LlusmLoma Linda, CA

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

Diem Kieu Thi Tran among 929 neurological surgery physician records in California

Diem Kieu Thi Tran, MD is one of 929 neurological surgery physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 80% of them.

  • NPI issued2015 · 80% of these records are older, 15% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2014 · median 2005 among the 612 with a school on file
  • Record last updated2025 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in California

There are 929 neurological surgery physician records in California.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. Achal Achrol, M.D.Loma Linda, CA 923541275783276
  2. Warren Boling, M.D.Loma Linda, CA 923541912007790
  3. Austin Colohan, M.D.Loma Linda, CA 923541366486227
  4. Daniel Dilorenzo, MD, PHDLoma Linda, CA 923541851546600
  5. Justin Dye, M.D.Loma Linda, CA 923541629212535
  6. Namath Hussain, M.D., MBALoma Linda, CA 923541285845404
  7. Walter Johnson, M.D.Loma Linda, CA 923541528096757
  8. Shokry Lawandy, D.O.Loma Linda, CA 923541376705418

Common questions

What is Diem Kieu Thi Tran, MD's NPI number?

Diem Kieu Thi Tran, MD's National Provider Identifier (NPI) is 1790168987, issued on Jul 7, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Diem Kieu Thi Tran, MD located?

The NPPES record lists a practice address at 11370 Anderson St # 2600, Loma Linda, CA, 92354. Phone: (909) 558-6388. Providers update this record themselves, so call before visiting.

How can I verify Diem Kieu Thi Tran, MD's license?

NPPES lists California license number A139908, 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.

What is Diem Kieu Thi Tran, MD's MIPS final score?

The 2023 MIPS final score is 85.2 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.