NPI registry status
Active
2026 NPPES data Hospice and Palliative Medicine (Internal Medicine) Physician NPI 1619464773 MD
Verify on CMS → Sung Woo Koh, MD
Hospice and Palliative Medicine (Internal Medicine) Physician in La Mirada, 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 1,524 in Hospice and Palliative Medicine (Internal 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
65
Medicare Part D claims · 23 beneficiaries · Hospice and Palliative Medicine (Internal Medicine) Physician avg: 1K
MIPS score
76.3/100
▼ 7 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Sung Woo Koh, MD reported a CMS MIPS final score of 76.3/100 - below the 83.1 national average - and filed 65 Medicare Part D claims in 2023.
- 76.3/100
- MIPS score · -7 vs avg
- 65
- Part D claims, 2023
- 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.
Sung Woo Koh, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
76 21st percentile higher than 21% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Sung Woo Koh, MD sits
This provider among hospice and palliative medicine (internal medicine) physician peers
Across the 317 hospice and palliative medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Sung Woo Koh, MD writes more Part D claims than 26% of them and scores higher on MIPS quality than 17% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one hospice and palliative medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is Sung Woo Koh, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Sung Woo Koh, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Sung Woo Koh, MD?
Below national averagePrimary specialty
Hospice and Palliative Medicine (Internal Medicine) Physician
Medicare Part D claims
65 95% vs specialty avg
MIPS final score
76.3/100 6.8 pts vs avg
Specialty distribution in California
How Hospice and Palliative Medicine (Internal Medicine) Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Sung Woo Koh, MD's 2023 MIPS final score plotted against the Hospice and Palliative Medicine (Internal Medicine) Physician national average
- MIPS Final Score
- 76.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hospice and Palliative Medicine (Internal Medicine) Physician) - 76.3/100 vs national avg 83.1
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).
Sung Woo Koh, MD appears in the CMS NPPES registry as a Hospice and Palliative Medicine (Internal Medicine) Physician provider holding MD credentials at 12675 LA MIRADA BLVD STE 220, La Mirada, CA, 90638, with a listed phone of (562) 967-2273. NPI 1619464773 was issued on 04/15/2018.
Medicare Part D records for calendar year 2023 show 65 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $7K in drug spend, with an opioid prescribing rate of 30.8%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 76.3/100 for the 2023 performance year (Quality 62.7, Cost 59.3), compared with the national average of 83.1.
Hospice and Palliative Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 1,524 enrolled providers across 51 states and an average of 1,275 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 | 1619464773 |
|---|---|
| Specialty | Hospice and Palliative Medicine (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/15/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
76.2631
Final Score
Avg: 83.1
62.7438
Quality
59.2967
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Sung Woo Koh, 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.
Pih Health Physicians
Los Angeles, 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 Sung Woo Koh, MD. To verify Sung Woo Koh, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
65
Total Claims
$7K
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 67
- Total Day Supply
- 1,705
- Generic Drug Cost
- $2K
- Opioid Claims
- 20 (30.8% rate)
Patient Demographics
- Average Patient Age
- 78.6 years
- Avg HCC Risk Score
- 3.79
More Hospice and Palliative Medicine (Internal Medicine) Physician in CA →
All providers in California →
Compare specialties →
Hospice and Palliative Medicine (Internal Medicine) Physician Overview
How Sung Woo Koh, MD fits within the Hospice and Palliative Medicine (Internal Medicine) Physician landscape nationally.
1,524
Hospice and Palliative Medicine (Internal Medicine) Physician Providers in US
51
States with Hospice and Palliative Medicine (Internal Medicine) Physician
1,275
Avg Claims per Provider
Sung Woo Koh, MD's 65 claims are below the specialty average of 1,275.
Nearby Hospice and Palliative Medicine (Internal Medicine) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Koh.
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 Hospice and Palliative Medicine (Internal 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
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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Sung Woo Koh, MD's specialty? ▼
Sung Woo Koh, MD specializes in Hospice and Palliative Medicine (Internal Medicine) Physician and practices in La Mirada, California. Credentials: MD.
How much does Sung Woo Koh, MD prescribe under Medicare Part D? ▼
In 2023, Sung Woo Koh, MD wrote 65 Medicare Part D claims totaling $7K in drug costs for 23 beneficiaries.
What is Sung Woo Koh, MD's Medicare quality score? ▼
Sung Woo Koh, MD has a CMS MIPS Final Score of 76.3/100 (Quality: 62.7, Cost: 59.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sung Woo Koh, MD located? ▼
Sung Woo Koh, MD is located at 12675 LA MIRADA BLVD STE 220, La Mirada, CA, 90638. Phone: (562) 967-2273.
What is Sung Woo Koh, MD's NPI number? ▼
Sung Woo Koh, MD's National Provider Identifier (NPI) is 1619464773, issued on 04/15/2018.
Does Sung Woo Koh, MD prescribe opioids? ▼
Yes, Sung Woo Koh, MD had 20 opioid claims in 2023 with an opioid prescribing rate of 30.8%.
How many Hospice and Palliative Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 1,524 Hospice and Palliative Medicine (Internal Medicine) Physician providers across 51 states in the US. The average Hospice and Palliative Medicine (Internal Medicine) Physician provider writes 1,275 Medicare Part D claims per year.
Does Sung Woo Koh, MD accept Medicare? ▼
Sung Woo Koh, MD appears in CMS Medicare data with 65 Part D claims and 23 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sung Woo Koh, MD's credentials? ▼
Sung Woo Koh, MD's NPI is 1619464773 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
Compiled from official public sources by the PlainDoctor editorial team.