Robert Liu
Internal Medicine Physician · Fontana, CA
Robert Liu is an internal medicine physician with a practice address in Fontana, California, and NPI 1386178002, issued on Apr 19, 2017. Check the license (California A162213, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Liu
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A162213 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17234 Valley Blvd., Fontana, CA 92335
- Phone
- (909) 427-5000
- Enumerated
- Apr 19, 2017
- Record last updated
- Jan 17, 2023
- Medicare enrollment
- Enrolled (PECOS I20200107001697); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 17234 Valley Blvd.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Austin Anderson, MDStudent in an Organized Health Care Education/Training Program1669969044
- Terrin Arceo, DOPsychiatry Physician1104520485
- Rouzbeh DarvishanStudent in an Organized Health Care Education/Training Program1295222768
- Marcos Escobar, MDFamily Medicine Physician1821655481
- Sheena Ghalla, DOPsychiatry Physician1942903067
Verify Robert Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A162213Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
263 Medicare Part D claims for 110 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 64 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen33 claims
- Levetiracetam31 claims
- Hydrocodone-Acetaminophen27 claims
- Methocarbamol25 claims
- Amlodipine Besylate20 claims
- Dexamethasone16 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: $154.88
3 payments; by number, the most common kind was food and beverage; the largest payer was DePuy Synthes Sales 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.
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
- 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).
Robert Liu among 17,696 internal medicine physician records in California
Robert Liu 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 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 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).
111 internal medicine physician records list a practice address in Fontana
They are 111 of the 3,012 NPPES records with a practice address in Fontana, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Fontana → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Te-Ie Lee, M.D.Fontana, CA 923351982613931
- Hollis Lee, MDFontana, CA 923351588736060
- Hoveda Mufti, M.D.Fontana, CA 923351598871493
- J Duc Nguyen, M.D.Fontana, CA 923351427018456
- Joseph Paredes, MDFontana, CA 923351457422420
- Ramesh Patel, MDFontana, CA 923351750480810
- Alex Quan, MDFontana, CA 923351659442630
- Gregory Shimizu, MDFontana, CA 923351154492130
Common questions
What is Robert Liu's NPI number?
Robert Liu's National Provider Identifier (NPI) is 1386178002, issued on Apr 19, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Robert Liu located?
The NPPES record lists a practice address at 17234 Valley Blvd., Fontana, CA, 92335. Phone: (909) 427-5000. Providers update this record themselves, so call before visiting.
How can I verify Robert Liu's license?
NPPES lists California license number A162213, 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 Robert Liu prescribe under Medicare Part D?
In 2024, Robert Liu had 263 Medicare Part D claims for 110 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.