NPPES file of Aug 9, 2026

Conrad Liang, M.D., PH.D.

Vascular Neurology Physician · Fontana, CA

Conrad Liang, M.D., PH.D. is a vascular neurology physician with a practice address in Fontana, California, and NPI 1912141334, issued on Apr 29, 2009. Check the license (California A125044, 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
1912141334
Name
Conrad Liang
Credential
M.D., PH.D.
Primary taxonomy
Vascular Neurology Physician 2084V0102X
License number
A125044 CA
Self-reported in NPPES; status is on the state search
Practice location
9961 Sierra Ave, Fontana, CA 92335
Phone
(866) 454-3485
Enumerated
Apr 29, 2009
Record last updated
Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(909) 427-4570
Medicare enrollment
Enrolled (PECOS I20140616001756); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 2009
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 9961 Sierra Ave

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

  1. Solomon Abila, MDFamily Medicine Physician1871652479
  2. Jenny Abouelsood, M.D.Family Medicine Physician1457638512
  3. Marla Abrolat, MDPediatrics Physician1164593133
  4. Eduardo Acosta, MDPediatrics Physician1497803324
  5. Michael Adair, MDFamily Medicine Physician1780732651
  6. Berneva Adams, MDObstetrics & Gynecology Physician1376602987

Verify Conrad Liang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A125044
    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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89% fewer Medicare Part D claims than the average vascular neurology physician in 2024

29 Medicare Part D claims for 12 beneficiaries, against an average of 270 among the 598 providers of this specialty who prescribed in Part D.

  1. Conrad Liang29
  2. Specialty average270

Most prescribed

  1. Clopidogrel11 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: $179.54

7 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 461 providers of this specialty with any payment received $3,770.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Conrad Liang$179.54
  2. Specialty average$3,770.65

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. Southern California Permanente Medical GroupFontana, CA

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

Conrad Liang among 74 vascular neurology physician records in California

Conrad Liang, M.D., PH.D. is one of 74 vascular neurology physician records with a practice address in California. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 38% of them.

  • NPI issued2009 · 38% of these records are older, 54% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated2009 · median 2009 among the 61 with a school on file
  • Record last updated2021 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084V0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular Neurology Physician providers in California

There are 74 vascular neurology physician records in California.

The 8 vascular neurology physician records with the nearest ZIP codes

  1. Navpreet Bains, D.O..Colton, CA 923241588011860
  2. Andrew Nik, MDColton, CA 923241316177520
  3. Jenan Shukry, MDRancho Mirage, CA 922701962963447
  4. Tehmina Salahuddin, M.DPalm Springs, CA 922621942462700
  5. Muhammad Taqi, M.D.Palm Springs, CA 922621013123280
  6. Kunal Agrawal, M.D.San Diego, CA 921031093074122
  7. Reza Bavarsad Shahripour, MDSan Diego, CA 921031699129668
  8. Christian Garcia, MDSan Diego, CA 921031134859994

Common questions

What is Conrad Liang, M.D., PH.D.'s NPI number?

Conrad Liang, M.D., PH.D.'s National Provider Identifier (NPI) is 1912141334, issued on Apr 29, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Conrad Liang, M.D., PH.D. located?

The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (866) 454-3485. Providers update this record themselves, so call before visiting.

How can I verify Conrad Liang, M.D., PH.D.'s license?

NPPES lists California license number A125044, 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 Conrad Liang, M.D., PH.D. prescribe under Medicare Part D?

In 2024, Conrad Liang, M.D., PH.D. had 29 Medicare Part D claims for 12 beneficiaries; the average among vascular neurology physician prescribers was 270. 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.