Robert Liou, MD
Internal Medicine Physician · Long Beach, CA
Robert Liou, MD is an internal medicine physician with a practice address in Long Beach, California, and NPI 1316127624, issued on Nov 5, 2007. Check the license (California A106614, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Liou
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A106614 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2110 N Bellflower Blvd, Long Beach, CA 90815
- Phone
- (562) 346-2222
- Enumerated
- Nov 5, 2007
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20091023000249); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2110 N Bellflower Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Hannah Maria Barroga, DOFamily Medicine Physician1184120701
- Bryan BowmanNurse Practitioner1619417060
- Tawnie Cao, PA-CPhysician Assistant1497205462
- Joann Escalante-Alviz, F.N.P.-CFamily Nurse Practitioner1841625712
Verify Robert Liou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A106614Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,315 Medicare Part D claims for 197 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.
Most prescribed
- Albuterol Sulfate Hfa138 claims
- Spiriva Respimat131 claims
- Wixela Inhub129 claims
- Prednisone113 claims
- Alvesco59 claims
- Montelukast Sodium52 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupHarbor City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Liou among 17,696 internal medicine physician records in California
Robert Liou, 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2007 · 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).
221 internal medicine physician records list a practice address in Long Beach
They are 221 of the 13,650 NPPES records with a practice address in Long Beach, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Long Beach → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Cornelia Barton, MDLong Beach, CA 908151205999265
- Diana Bryant, MDLong Beach, CA 908151255425146
- Thomas Hendon, M.D.Long Beach, CA 908151093745853
- Lance Hirano, MDLong Beach, CA 908151386751576
- Rozalie Jackson, MDLong Beach, CA 908151700086667
- Vasanthi Jeyakumar, MDLong Beach, CA 908151811994437
- Kenneth Labowe, M.D.Long Beach, CA 908151528288172
- Patricia Maciog, MDLong Beach, CA 908151063436509
Common questions
What is Robert Liou, MD's NPI number?
Robert Liou, MD's National Provider Identifier (NPI) is 1316127624, issued on Nov 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Robert Liou, MD located?
The NPPES record lists a practice address at 2110 N Bellflower Blvd, Long Beach, CA, 90815. Phone: (562) 346-2222. Providers update this record themselves, so call before visiting.
How can I verify Robert Liou, MD's license?
NPPES lists California license number A106614, 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 Liou, MD prescribe under Medicare Part D?
In 2024, Robert Liou, MD had 1,315 Medicare Part D claims for 197 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.