NPPES file of Aug 9, 2026

Andrew Thuc Truong, MD

Internal Medicine Physician · Mission Viejo, CA

Andrew Thuc Truong, MD is an internal medicine physician with a practice address in Mission Viejo, California, and NPI 1134513047, issued on Mar 28, 2015. Check the license (California A159187, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134513047
Name
Andrew Thuc Truong
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A159187 CA
Self-reported in NPPES; status is on the state search
Practice location
26800 Crown Valley Pkwy Ste 305, Mission Viejo, CA 92691
Phone
(949) 364-6000
Enumerated
Mar 28, 2015
Record last updated
Nov 11, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(949) 364-3213
Medicare enrollment
Enrolled (PECOS I20190710003113); accepts Medicare assignment
Medical or professional school
State University Of New York Downstate Medical Center, 2015
Telehealth
Offers telehealth (CMS)
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 26800 Crown Valley Pkwy Ste 305

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

  1. Saba Akhtar, M.DInternal Medicine Physician1104112440
  2. Jae Choi, MDStudent in an Organized Health Care Education/Training Program1992371884
  3. Leslie Lu, MDInternal Medicine Physician1104921402
  4. Sharone Perlman, NPFamily Nurse Practitioner1548631419
  5. Jennifer Spignese, FNP-C, MSN, RNNurse Practitioner1386130938
  6. Winston Wong, PHARM.D.Pharmacotherapy Pharmacist1811913957

Verify Andrew Thuc Truong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A159187
    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

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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70% more Medicare Part D claims than the average internal medicine physician in 2024

5,400 Medicare Part D claims for 516 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 69 claims were for opioids.

  1. Andrew Truong5,400
  2. Specialty average3,176

Most prescribed

  1. Rosuvastatin Calcium409 claims
  2. Atorvastatin Calcium363 claims
  3. Losartan Potassium305 claims
  4. Amlodipine Besylate245 claims
  5. Levothyroxine Sodium232 claims
  6. Tamsulosin Hcl150 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: $1,017.46

50 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Andrew Truong$1,017.46
  2. Specialty average$1,303.06

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. Providence Medical FoundationFullerton, CA

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

Andrew Thuc Truong among 17,696 internal medicine physician records in California

Andrew Thuc Truong, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 76% of them.

  • NPI issued2015 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2015 · median 2004 among the 11,065 with a school on file
  • Record last updated2021 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

58 internal medicine physician records list a practice address in Mission Viejo

They are 58 of the 2,156 NPPES records with a practice address in Mission Viejo, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Bahman Badie, M.D.Mission Viejo, CA 926911396721916
  2. Sherif El Sokkary, M.D.Mission Viejo, CA 926911710964432
  3. Dennis Haghighat, M.D.Mission Viejo, CA 926911568449171
  4. Mark Hauptman, M.D.Mission Viejo, CA 926911801873427
  5. Raymond Kwa, M.D.Mission Viejo, CA 926911609853092
  6. Murray Margolis, M.D.Mission Viejo, CA 926911457338857
  7. Vy Nguyen, M.D.Mission Viejo, CA 926911881671154
  8. Nader Noorian, M.D.Mission Viejo, CA 926911861479057

Common questions

What is Andrew Thuc Truong, MD's NPI number?

Andrew Thuc Truong, MD's National Provider Identifier (NPI) is 1134513047, issued on Mar 28, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Thuc Truong, MD located?

The NPPES record lists a practice address at 26800 Crown Valley Pkwy Ste 305, Mission Viejo, CA, 92691. Phone: (949) 364-6000. Providers update this record themselves, so call before visiting.

How can I verify Andrew Thuc Truong, MD's license?

NPPES lists California license number A159187, 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.

How much does Andrew Thuc Truong, MD prescribe under Medicare Part D?

In 2024, Andrew Thuc Truong, MD had 5,400 Medicare Part D claims for 516 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

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.