NPPES file of Aug 9, 2026

Brian Patrick Tiu, M.D.

Vascular Surgery Physician · Wildomar, CA

Brian Patrick Tiu, M.D. is a vascular surgery physician with a practice address in Wildomar, California, and NPI 1902190226, issued on Jun 3, 2011. Check the license (California A155522, 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
1902190226
Name
Brian Patrick Tiu
Credential
M.D.
Primary taxonomy
Vascular Surgery Physician 2086S0129X
License number
A155522 CA
Self-reported in NPPES; status is on the state search
Practice location
36320 Inland Valley Dr Ste 101, Wildomar, CA 92595
Phone
(951) 698-3000
Enumerated
Jun 3, 2011
Record last updated
Jul 26, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180629000423); 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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Also registered at 36320 Inland Valley Dr Ste 101

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

  1. Tatiana AttobraRegistered Dietitian1346908118

Verify Brian Patrick Tiu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A155522
    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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58% fewer Medicare Part D claims than the average vascular surgery physician in 2024

85 Medicare Part D claims for 49 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 37 claims were for opioids.

  1. Brian Tiu85
  2. Specialty average201

Most prescribed

  1. Oxycodone Hcl29 claims
  2. Clopidogrel17 claims
  3. Eliquis11 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: $1,151.96

15 payments; by number, the most common kind was food and beverage; the largest payer was Silk Road Medical, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brian Tiu$1,151.96
  2. Specialty average$6,178.00

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. Murrieta Valley Surgery Associates Medical Group Inc ApcWildomar, CA

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

Brian Patrick Tiu among 580 vascular surgery physician records in California

Brian Patrick Tiu, M.D. is one of 580 vascular surgery physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 72% of them.

  • NPI issued2011 · 72% of these records are older, 24% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2011 · median 2003 among the 411 with a school on file
  • Record last updated2018 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular Surgery Physician providers in California

There are 580 vascular surgery physician records in California.

The 8 vascular surgery physician records with the nearest ZIP codes

  1. Amit Karmur, D.O.Wildomar, CA 925951700134830
  2. Bolaji Nafiu, M.D.Wildomar, CA 925951003927393
  3. Yara Rothermel Gorski, M.D.Temecula, CA 925921417049156
  4. Marcos Kuroki, M.D., PH.D.Irvine, CA 926181235525460
  5. Garabed Nishanian, MDIrvine, CA 926181336297290
  6. Allen Chan, M.D.Murrieta, CA 925631568486926
  7. Joe Pantoja, MDMoreno Valley, CA 925551174985121
  8. Maraya Altuwaijri, M.D.Laguna Woods, CA 926371316925761

Common questions

What is Brian Patrick Tiu, M.D.'s NPI number?

Brian Patrick Tiu, M.D.'s National Provider Identifier (NPI) is 1902190226, issued on Jun 3, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Brian Patrick Tiu, M.D. located?

The NPPES record lists a practice address at 36320 Inland Valley Dr Ste 101, Wildomar, CA, 92595. Phone: (951) 698-3000. Providers update this record themselves, so call before visiting.

How can I verify Brian Patrick Tiu, M.D.'s license?

NPPES lists California license number A155522, 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 Brian Patrick Tiu, M.D. prescribe under Medicare Part D?

In 2024, Brian Patrick Tiu, M.D. had 85 Medicare Part D claims for 49 beneficiaries; the average among vascular surgery physician prescribers was 201. 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.