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2026 NPPES data Specialist NPI 1003803685 M.D.
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Kim Ng, M.D.

Specialist in Victorville, 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 69,608 in Specialist, 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
192
Medicare Part D claims · 60 beneficiaries · Specialist avg: 1K
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.7/100
▲ 2 pts above national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Kim Ng, M.D. reported a CMS MIPS final score of 85.7/100 - above the 83.5 national average - and filed 192 Medicare Part D claims in 2023.

85.7/100
MIPS score · +2 vs avg
192
Part D claims, 2023
62%
generic prescribing
≥46th
pct among measured MIPS (lower-bound band)

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.

CMS NPPES provider registry desk

NPI 1003803685 · Specialist

NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-INLINE · RX-LIGHT · BOOK-MID · PHOTO-FINISH

  • NPI-10 1003803685
  • ENUM-LEGACY 2005
  • TAX-MEGA 70K Specialist
  • MIPS-INLINE 85.7/100
  • RX-LIGHT 192
  • BOOK-MID 6,672 in California
  • PHOTO-FINISH Arthur Boujoukos · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Kim Ng, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

86 ≥ 46th percentile 46% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Kim Ng, M.D. sits

This provider among specialist peers

Across the 4,261 specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Kim Ng, M.D. writes more Part D claims than 23% of them and scores higher on MIPS quality than 55% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 50Kim Ng, M.D., Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 55
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one specialist peer from a representative sample of 60; the gold marker is Kim Ng, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Kim Ng, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 09/29/2005

NPI 1003803685

Primary specialty

Specialist

High-volume

69,608 US NPIs in this specialty

Medicare Part D claims

192 87% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

MIPS final score

85.7/100 2.2 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in California

How Specialist compares to other specialties among California providers

California providers
Behavior Technician17.3%Marriage & Family Therapist5.5%Student in an Organized Heal…5%Mental Health Counselor3.9%Pharmacist3.5%Clinical Social Worker3.1%Specialist0.7%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Kim Ng, M.D.'s 2023 MIPS final score plotted against the Specialist national average

High performer (top quartile)
MIPS Final Score
85.7/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%85.7%
MIPS final score (Specialist) - 85.7/100 vs national avg 83.5
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).

Practice Address

12370 HESPERIA RD STE 17
Victorville, CA 92395
(760) 388-0071

Provider Details

NPI 1003803685
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 09/29/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

85.7366
Final Score
Measured-score avg: 83.5
87.9076
Quality
63.1199
Cost
78
Promoting Interoperability

Reporting: Group practice

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 Kim Ng, M.D.. To verify Kim Ng, M.D.'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 · Above average

Kim Ng, M.D. - brand share 38.0%
Specialist average

38% brand-name claims vs 62% generic, on 192 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.

192
Total Claims
$739K
Total Drug Cost
60
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
248
Total Day Supply
6,638
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$626K
Generic Drug Cost
$113K

Patient Demographics

Average Patient Age
72.9 years
Avg HCC Risk Score
3.08
Gender Split
57% female / 43% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Kim Ng, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Anastrozole
 23
Abiraterone Acetate
 13
Hydroxyurea
 11
Tecentriq
Atezolizumab
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

More Specialist in CA → All providers in California → Compare specialties →

Specialist Overview

How Kim Ng, M.D. fits within the Specialist landscape nationally.

69,608
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

Kim Ng, M.D.'s 192 claims are below the specialty average of 1,474.

Nationwide Specialist peers with similar MIPS or enrollment year

Two federal-record peer sets for Ng, both outside California so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (85.7 here).

Gregory Carroll 85.7 IL Jennifer Schroeder 85.7 IL Arthur Boujoukos 85.7 PA Dogan Temizer 85.7 OH

Same NPPES enumeration year (2005)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Uma Mishra Cornwall, NY Troy Thompson Williamsburg, VA Stanley Smith Omaha, NE George Juang Flushing, NY

Nearby Specialist Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Ng.

One of 6,672 Specialist providers enrolled in California, 5 are shown here.

Adrienne Abad Santos
San Francisco, CA
Dr. Brenda Abarca
MD
Torrance, CA
Dr. Fatemeh Abbasi
PT
Van Nuys, CA
Dr. Erlinda Abcede
M.D.
Cudahy, CA
Dr. Maher Abdallah
M.D.
Palm Springs, CA

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is Kim Ng, M.D.'s specialty? ▼
Kim Ng, M.D. specializes in Specialist and practices in Victorville, California. Credentials: M.D..
How much does Kim Ng, M.D. prescribe under Medicare Part D? ▼
In 2023, Kim Ng, M.D. wrote 192 Medicare Part D claims totaling $739K in drug costs for 60 beneficiaries.
What is Kim Ng, M.D.'s Medicare quality score? ▼
Kim Ng, M.D. has a CMS MIPS Final Score of 85.7/100 (Quality: 87.9, Cost: 63.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kim Ng, M.D. located? ▼
Kim Ng, M.D. is located at 12370 HESPERIA RD STE 17, Victorville, CA, 92395. Phone: (760) 388-0071.
What is Kim Ng, M.D.'s NPI number? ▼
Kim Ng, M.D.'s National Provider Identifier (NPI) is 1003803685, issued on 09/29/2005.
Does Kim Ng, M.D. prescribe more brand-name or generic drugs? ▼
Kim Ng, M.D.'s prescribing is 38% brand-name and 62% generic drugs by claim count, with $626K in brand drug costs.
How many Specialist providers are there in the US? ▼
There are 69,608 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Kim Ng, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Kim Ng, M.D.'s most frequently prescribed drugs include Anastrozole, Abiraterone Acetate, Hydroxyurea. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kim Ng, M.D. accept Medicare? ▼
Kim Ng, M.D. appears in CMS Medicare data with 192 Part D claims and 60 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kim Ng, M.D.'s credentials? ▼
Kim Ng, M.D.'s NPI is 1003803685 with credentials M.D.. 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 editorial process.

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.