Dr. Conrad W. Liang, MD, PhD

  • Fontana, CA
  • Vascular neurology physician
NPI1912141334PAC ID9931354750
Part D claims, 2024
29
Publications
17
Clinical trials
8
Hospital affiliations
1
Industry payments
$4,136
Practice address
9965 Sierra Ave, Fontana, CA 92335
Practice phone
Call (909) 427-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Kaiser Permanente - Fontana Medical Center

Fontana, California

See all 3 affiliations

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Dr. Conrad W. Liang is a vascular neurology physician in Fontana, California

Dr. Liang practices at Kaiser Permanente - Fontana Medical Center in Fontana, California.

Dr. Liang's NPI, 1912141334, was assigned on April 29, 2009. Dr. Liang graduated from OHSU School of Medicine in 2009. Dr. Liang holds California license A125044.

NPI and contact details
Medicare PAC ID
9931354750
NPI enumeration date
April 29, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(909) 427-5000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
43
Medical school graduation
2009

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Conrad W. Liang practices at Kaiser Permanente - Fontana Medical Center in Fontana, California

Dr. Liang's primary practice is Kaiser Permanente - Fontana Medical Center, at 9965 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.

  • Kaiser Permanente - Fontana Medical Center
    9965 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Conrad W. Liang is affiliated with 2 sites of care and 1 medical group

Dr. Liang's primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California. Dr. Liang is also affiliated with Fontana Medical Center. The medical group on file is Southern California Permanente Medical Group.

See all 3 affiliations for Dr. Liang

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Conrad W. Liang's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Liang practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Kaiser Permanente - Fontana Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Conrad W. Liang is one of 72 vascular neurology physicians in California

Vascular neurology is Dr. Liang's primary specialty in the NPI Registry, under taxonomy code 2084V0102X. Dr. Liang is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Liang's licenses on file in 2 states: California and Oregon.

Specialties and state licenses

  • Vascular neurology, CaliforniaPrimaryLicense A125044 · 2013 to 2026 · taxonomy 2084V0102X
  • Oregon licenseSince 2012

Vascular neurology physicians near Dr. Liang

Counts of vascular neurology physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Conrad W. Liang's patients have a median age of 60

Across all payers, Dmand AI patient panel data puts Dr. Liang's median patient age at 60, with 71% women.

Dr. Liang's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women71%
  • Men29%

Source: Dmand AI Patient Panel Data

Dr. Conrad W. Liang wrote 29 Medicare Part D claims in 2024

In 2024, Dr. Liang wrote 29 Medicare Part D claims for 12 patients. 86% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $164 in total drug cost. In 2022, CMS named 11 claims across 1 drug.

Part D claims, 202429
Drugs named by CMS1
Total drug cost$164
Part D patients12

Dr. Liang's Part D claims by kind of drug, 2024

  • Generic25 claims86%
  • Brand-name and other4 claims14%

Dr. Liang's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2022 to 2024

  • 2022
  • 2024
Claims for drugs CMS names
2022: 112024: 11No change

Drugs named by CMS: 1 in 2024, 1 in 2022.

See all prescribing by Dr. Liang

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Conrad W. Liang takes part in Medicare

Dr. Liang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

For MedTech and pharma teams

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Dr. Conrad W. Liang has 17 publications on record

Dmand AI links 17 papers to Dr. Liang, published from 2011 to 2024. 2011 was the busiest year, with 4. The most frequent topics are Embolization, Therapeutic, Cerebral Angiography and Dendrites. Dr. Liang's most frequent co-authors are Mazen Noufal, MD, Ajit Singh Puri, MD and Peng Roc Chen, MD.

Papers17
Years published2011 to 2024

Dr. Liang's papers by year, 2011 to 2024

Topics Dr. Liang writes about most

  • Embolization, Therapeutic
  • Cerebral Angiography
  • Dendrites
  • Endovascular Procedures
  • Intracranial Aneurysm

Dr. Liang's most frequent co-authors

Recent publications by Dr. Liang

See all 17 publications and co-authors

See who Dr. Liang researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Liang works with, so you can find a warm path to the right vascular neurology physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Conrad W. Liang has worked on 8 clinical trials

Dmand AI links Dr. Liang to 8 clinical trials, 5 of them phase 3 studies. 5 are still active or recruiting. Conditions studied include Cerebral Hemorrhage, Ischemic Stroke and Intracranial Hemorrhages.

Clinical trials with Dr. Liang by phase

  1. NonePhase 1: no trials
  2. NonePhase 2: no trials
  3. 5Phase 3: 5 trials
  4. 1Phase 4: 1 trial

Conditions in Dr. Liang's trials

  • Cerebral Hemorrhage
  • Ischemic Stroke
  • Intracranial Hemorrhages
  • COVID-19
  • Intracranial Arteriosclerosis

Investigators on the most trials with Dr. Liang

Recent clinical trials with Dr. Liang

See all 8 clinical trials and co-investigators

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Conrad W. Liang received $4,136 in industry payments from 2016 to 2025

CMS Open Payments shows 76 general payments to Dr. Liang from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 76% of the total. DePuy Synthes Sales Inc. paid the most, $1,026.

General payments to Dr. Liang by program year, 2016 to 2025

General payments to Dr. Liang by kind, 2016 to 2025

$4.1Kin total
  • Food and beverage$3,13476%
  • Travel and lodging$1,00224%

Companies that paid Dr. Liang the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Liang

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Conrad W. Liang graduated from OHSU School of Medicine

Dr. Liang graduated from OHSU School of Medicine in 2009.

  1. Medical schoolOHSU School of Medicine
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology
  3. Board certified in vascular neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Conrad W. Liang accepts plans from 2 insurance carriers

Dr. Liang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Kaiser Permanente
  • CMS Medicare

Plan types Dr. Liang accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Conrad W. Liang's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Conrad W. Liang

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Conrad W. Liang's NPI number?

Dr. Conrad W. Liang's NPI number is 1912141334. It was assigned on April 29, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. Conrad W. Liang?

Dr. Conrad W. Liang is a vascular neurology physician in Fontana, California. The primary specialty in the NPI Registry is Vascular Neurology Physician (taxonomy code 2084V0102X).

Where does Dr. Conrad W. Liang practice?

Dr. Liang practices at 9965 Sierra Ave, Fontana, CA 92335. Dr. Liang's primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California.

What is Dr. Conrad W. Liang's office phone number?

The practice phone on file for Dr. Liang is (909) 427-5000.

What is Dr. Conrad W. Liang's medical license number?

Dr. Liang holds California license A125044, one of the licenses on file in 2 states.

Which states has Dr. Conrad W. Liang been licensed in?

Dmand AI has state licenses on file for Dr. Liang in California (2013 to 2026) and Oregon (since 2012).

Which hospitals is Dr. Conrad W. Liang affiliated with?

Dr. Liang is affiliated with Fontana Medical Center.

What medical group is Dr. Conrad W. Liang part of?

Dr. Liang is linked to Southern California Permanente Medical Group.

Does Dr. Conrad W. Liang accept Medicare?

Yes. CMS lists Dr. Liang as accepting Medicare assignment.

Is Dr. Conrad W. Liang board certified?

Yes. Dr. Liang is board certified in neurology by the American Board of Psychiatry and Neurology.

Show 7 more questionsShow fewer questions

Where did Dr. Conrad W. Liang go to medical school?

Dr. Liang graduated from OHSU School of Medicine in 2009.

What drugs does Dr. Conrad W. Liang prescribe most?

In 2024 Medicare Part D data, Dr. Liang's most prescribed drugs by claims were Clopidogrel.

Has Dr. Conrad W. Liang received payments from drug or device companies?

CMS Open Payments shows $4,136 in general payments to Dr. Liang from 10 companies from 2016 to 2025. The largest total came from DePuy Synthes Sales Inc.

How long has Dr. Conrad W. Liang been practicing?

Dr. Liang graduated from medical school in 2009, 17 years ago.

Does Dr. Conrad W. Liang do research?

Dmand AI links 17 publications to Dr. Liang, published from 2011 to 2024. Dr. Liang has worked on 8 clinical trials.

Who does Dr. Conrad W. Liang publish with?

Dr. Liang's most frequent co-authors are Mazen Noufal, MD (3 shared papers), Ajit Singh Puri, MD (3 shared papers) and Peng Roc Chen, MD (2 shared papers).

What insurance does Dr. Conrad W. Liang accept?

Dr. Liang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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