Hanbyul Choi
NPI 1164885174 · Internal Medicine Physician · Rolling Hills Estates, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hanbyul Choi is a Internal Medicine Physician provider in Rolling Hills Estates, CA (NPI 1164885174).
Provider details
- NPI number
- 1164885174
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A158201 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,116 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 479 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 134 | $98 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 107 | $9 |
| Annual, Face-To-Face Intensive Behavioral Therapy for Cardiovascular Disease, Individual, 15 MinutesG0446 | 77 | $27 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 73 | $140 |
| Advance Care Planning, First 30 Minutes99497 | 62 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 107 | 40 |
| Amlodipine Besylate | 73 | 27 |
| Azithromycin | 71 | 60 |
| Rosuvastatin Calcium | 70 | 25 |
| Levothyroxine Sodium | 55 | 22 |
| Losartan Potassium | 51 | 20 |
| Tamsulosin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-03-29
- Last updated
- 2023-11-30
- Certified
- 2023-11-30
Frequently asked questions
- What is Hanbyul Choi's NPI number?
- Hanbyul Choi's National Provider Identifier (NPI) is 1164885174, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hanbyul Choi's specialty?
- Hanbyul Choi is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hanbyul Choi located?
- Hanbyul Choi's practice location on file with NPPES is 501 Deep Valley Dr Ste 100, Rolling Hills Estates, CA 90274-7606.
- What is Hanbyul Choi's phone number?
- The practice phone number listed in the NPPES registry for Hanbyul Choi is (310) 303-3953.
- Does Hanbyul Choi accept Medicare?
- Hanbyul Choi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hanbyul Choi's NPI active?
- Yes — Hanbyul Choi's NPI (1164885174) is active in the NPPES registry as of the last update on 2023-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.