Yong-Sik Kim, MD
NPI 1033317565 · Internal Medicine Physician · Laguna Hills, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yong-Sik Kim, MD is a Internal Medicine Physician provider in Laguna Hills, CA (NPI 1033317565).
Provider details
- NPI number
- 1033317565
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A112454 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
285 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 | 200 | $136 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 39 | $141 |
| Administration of Influenza Virus VaccineG0008 | 23 | $35 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 12 | $99 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 11 | $16 |
Typical Medicare-allowed amounts for these services range $16–$141 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Zolpidem Tartrate | 24 | 14 |
| Levothyroxine Sodium | 23 | 20 |
| Alprazolam | 21 | 12 |
| Rosuvastatin Calcium | 17 | 15 |
| Atorvastatin Calcium | 15 | 12 |
| Tramadol Hcl | 15 | — |
| Metformin Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 16671 Yorba Linda Blvd Ste 100Suite FYorba Linda, CA 92886-2025Phone: (714) 985-6400Fax: (714) 985-6425
Registry dates
- Enumerated
- 2007-07-05
- Last updated
- 2025-11-21
- Certified
- 2025-11-21
Frequently asked questions
- What is Yong-Sik Kim's NPI number?
- Yong-Sik Kim's National Provider Identifier (NPI) is 1033317565, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yong-Sik Kim's specialty?
- Yong-Sik Kim is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yong-Sik Kim located?
- Yong-Sik Kim's practice location on file with NPPES is 24221 Calle De La Louisa Ste 200, Laguna Hills, CA 92653-3642.
- What is Yong-Sik Kim's phone number?
- The practice phone number listed in the NPPES registry for Yong-Sik Kim is (949) 334-8270.
- Does Yong-Sik Kim accept Medicare?
- Yong-Sik Kim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yong-Sik Kim's NPI active?
- Yes — Yong-Sik Kim's NPI (1033317565) is active in the NPPES registry as of the last update on 2025-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.