NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1225564818 MD
Verify on CMS → Charles Chol Bae Kim, MD
Family Medicine Physician in Tustin, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 in Family Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 180 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
77%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Charles Chol Bae Kim, MD filed 1,061 Medicare Part D claims in 2023 as a Family Medicine Physician in Tustin, California, prescribing 77% generic.
- 1K
- Part D claims, 2023
- 77%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Charles Chol Bae Kim, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,061 Top 24% higher than 76% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Charles Chol Bae Kim, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Charles Chol Bae Kim, MD?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
1,061 69% vs specialty avg
Specialty distribution in California
How Family Medicine Physician compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Medicine Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Charles Chol Bae Kim, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 14642 NEWPORT AVE STE 105, Tustin, CA, 92780, with a listed phone of (714) 831-1112. NPI 1225564818 was issued on 05/03/2017.
Medicare Part D records for calendar year 2023 show 1,061 prescription claims written by this provider, covering 180 Medicare beneficiaries and totaling roughly $216K in drug spend, split 22% brand-name and 77% generic by claim count.
Family Medicine Physician is a high-volume specialty nationwide, with 147,760 enrolled providers across 56 states and an average of 3,418 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1225564818 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/03/2017 |
Hospital and facility affiliations
Facilities where Charles Chol Bae Kim, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Borrego Community Health Foundation
Borrego Springs, CA
Inland Behavioral And Health Services Inc
San Bernadino, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Charles Chol Bae Kim, MD. To verify Charles Chol Bae Kim, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Charles Chol Bae Kim, MD - brand share 22.0%
Family Medicine Physician average
22% brand-name claims vs 77% generic, on 1,061 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,061
Total Claims
$216K
Total Drug Cost
180
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,834
- Total Day Supply
- 53,645
- Brand vs Generic
- 22% brand / 77% generic
- Brand Drug Cost
- $202K
- Generic Drug Cost
- $13K
- Antibiotic Claims
- 29
Patient Demographics
- Average Patient Age
- 73.8 years
- Avg HCC Risk Score
- 2.14
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 23, 65-74: 79, 75-84: 45, 85+: 33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Charles Chol Bae Kim, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Santyl
Santyl
88 claims
- Atorvastatin Calcium
Atorvastatin Calcium
64 claims
- Amlodipine Besylate
Amlodipine Besylate
60 claims
- Metformin Hcl
Metformin Hcl
56 claims
- Lisinopril
Lisinopril
38 claims
- Losartan Potassium 34
Losartan Potassium
34 claims
- Benazepril Hcl 26
Benazepril Hcl
26 claims
- Farxiga 23
Farxiga
23 claims
| Drug | Claims |
|---|---|
| Santyl Collagenase Clostridium Hist. | 88 |
| Atorvastatin Calcium | 64 |
| Amlodipine Besylate | 60 |
| Metformin Hcl | 56 |
| Lisinopril | 38 |
| Losartan Potassium | 34 |
| Benazepril Hcl | 26 |
| Farxiga Dapagliflozin Propanediol | 23 |
| Glipizide | 23 |
| Januvia Sitagliptin Phosphate | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Charles Chol Bae Kim, MD fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Charles Chol Bae Kim, MD's 1,061 claims are below the specialty average of 3,418.
Nearby Family Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Kim.
Dr. Omer Aba-Omer
MD
Santa Monica, CA
Dr. Michelle Ababa
MD
Wilmington, CA
Dr. Anna Tzeitel Abalos
MD
Roseville, CA
Dr. Adan Abarca
MD
Anaheim, CA
Dr. Lorraine Abate
M.D.
Sacramento, CA
Compare Family Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore California
Frequently Asked Questions
What is Charles Chol Bae Kim, MD's specialty? ▼
Charles Chol Bae Kim, MD specializes in Family Medicine Physician and practices in Tustin, California. Credentials: MD.
How much does Charles Chol Bae Kim, MD prescribe under Medicare Part D? ▼
In 2023, Charles Chol Bae Kim, MD wrote 1,061 Medicare Part D claims totaling $216K in drug costs for 180 beneficiaries.
Where is Charles Chol Bae Kim, MD located? ▼
Charles Chol Bae Kim, MD is located at 14642 NEWPORT AVE STE 105, Tustin, CA, 92780. Phone: (714) 831-1112.
What is Charles Chol Bae Kim, MD's NPI number? ▼
Charles Chol Bae Kim, MD's National Provider Identifier (NPI) is 1225564818, issued on 05/03/2017.
Does Charles Chol Bae Kim, MD prescribe more brand-name or generic drugs? ▼
Charles Chol Bae Kim, MD's prescribing is 22% brand-name and 77% generic drugs by claim count, with $202K in brand drug costs.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Charles Chol Bae Kim, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Charles Chol Bae Kim, MD's most frequently prescribed drugs include Santyl, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Charles Chol Bae Kim, MD accept Medicare? ▼
Charles Chol Bae Kim, MD appears in CMS Medicare data with 1,061 Part D claims and 180 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charles Chol Bae Kim, MD's credentials? ▼
Charles Chol Bae Kim, MD's NPI is 1225564818 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.