Hanbyul Choi
Internal Medicine Physician · Rolling Hills Estates, CA
Hanbyul Choi is an internal medicine physician with a practice address in Rolling Hills Estates, California, and NPI 1164885174, issued on Mar 29, 2016. Check the license (California A158201, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hanbyul Choi
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A158201 CA
Self-reported in NPPES; status is on the state search - Practice location
- 501 Deep Valley Dr Ste 100, Rolling Hills Estates, CA 90274
- Phone
- (310) 303-3953
- Enumerated
- Mar 29, 2016
- Record last updated
- Nov 30, 2023
- Medicare enrollment
- Enrolled (PECOS I20220714003811); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 501 Deep Valley Dr Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Hanbyul Choi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A158201Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,448 Medicare Part D claims for 306 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium107 claims
- Amlodipine Besylate73 claims
- Azithromycin71 claims
- Rosuvastatin Calcium70 claims
- Levothyroxine Sodium55 claims
- Losartan Potassium51 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hanbyul Choi among 17,696 internal medicine physician records in California
Hanbyul Choi 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 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · 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).
10 internal medicine physician records list a practice address in Rolling Hills Estates
They are 10 of the 208 NPPES records with a practice address in Rolling Hills Estates, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Rolling Hills Estates → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Hiva Bastanmehr, M.D.Rolling Hills Estates, CA 902741396751194
- Omer Deen, MDRolling Hills Estates, CA 902741417123332
- Laurence Gorlick, MDRolling Hills Estates, CA 902741669411542
- Richard Helfant, MDPalos Verdes Estates, CA 902741033098603
- Christine Kuida, MDRolling Hills Estates, CA 902741518958495
- Lorena Layrisse Landaeta, M.D.Rolling Hills Estates, CA 902741538589965
- Richard Lee, MDPalos Verdes Estates, CA 902741447414396
- Anna Mellor, MDRolling Hills Estates, CA 902741316998776
Common questions
What is Hanbyul Choi's NPI number?
Hanbyul Choi's National Provider Identifier (NPI) is 1164885174, issued on Mar 29, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Hanbyul Choi located?
The NPPES record lists a practice address at 501 Deep Valley Dr Ste 100, Rolling Hills Estates, CA, 90274. Phone: (310) 303-3953. Providers update this record themselves, so call before visiting.
How can I verify Hanbyul Choi's license?
NPPES lists California license number A158201, 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 Hanbyul Choi prescribe under Medicare Part D?
In 2024, Hanbyul Choi had 1,448 Medicare Part D claims for 306 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Hanbyul Choi's MIPS final score?
The 2023 MIPS final score is 86.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.