PlainDoctor

2026 NPPES data Pulmonary Disease Physician NPI 1083933675 M.D.
Verify on CMS →

Alex Ng, M.D.

Pulmonary Disease Physician in Louisville, Kentucky.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,647 in Pulmonary Disease 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
413
Medicare Part D claims · 76 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.2/100
▼ 10 pts below national avg 83.5 · Mid-tier
Industry payments
$502.91
8 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Alex Ng, M.D. reported a CMS MIPS final score of 73.2/100 - below the 83.5 national average - and filed 413 Medicare Part D claims in 2024.

73.2/100
MIPS score · -10 vs avg
413
Part D claims, 2024
67%
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.

Federal trust snapshot

What official records show about Alex Ng, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1083933675), first enumerated 05/22/2010.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 413 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 73.2/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $502.91 in reported industry payments (8 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1083933675 · Pulmonary Disease Physician

NPI-10 · ENUM-MID · TAX-MID · MIPS-LOW · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1083933675
  • ENUM-MID 2010
  • TAX-MID 10K Pulmonary Disease
  • MIPS-LOW 73.2/100
  • RX-LIGHT 413
  • BOOK-THIN 125 in Kentucky
  • PHOTO-FINISH Sarah Knapp · ±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

Alex 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.

73 ≥ 11th percentile 11% 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%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 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 Alex Ng, M.D. sits

This provider among pulmonary disease physician peers

Across the 2,467 pulmonary disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Alex Ng, M.D. writes more Part D claims than 30% of them and scores higher on MIPS quality than 14% - placing this provider in the lower-volume, lower-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 quality0255075100024.448.873.297.7Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 85Alex Ng, M.D., Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 14
Part D claim volume vs MIPS quality, by specialty percentile

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

✓
Board certification likely (heuristic, not verified)

Alex Ng, M.D. 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 Alex Ng, M.D.?

Below national average

NPI registry status

Active

Issued 05/22/2010

NPI 1083933675

Primary specialty

Pulmonary Disease Physician

Mid-sized

9,647 US NPIs in this specialty

Medicare Part D claims

413 72% vs specialty avg

2024 prescription claims

Specialty avg: 1,498

MIPS final score

73.2/100 10.3 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in Kentucky

How Pulmonary Disease Physician compares to other specialties among Kentucky providers

Kentucky providers
Family Nurse Practitioner5.8%Student in an Organized Heal…5.2%Pharmacist4.8%Mental Health Counselor4.6%Clinical Social Worker4.2%Physical Therapist3.6%Pulmonary Disease Physician0.1%
Largest specialties in Kentucky (% of in-state providers)

Medicare quality performance, MIPS

Alex Ng, M.D.'s 2023 MIPS final score plotted against the Pulmonary Disease Physician national average

Below national average
MIPS Final Score
73.2/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%73.2%
MIPS final score (Pulmonary Disease Physician) - 73.2/100 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

401 E CHESTNUT ST UNIT 690
Louisville, KY 40202
(502) 588-4600

Provider Details

NPI 1083933675
Specialty Pulmonary Disease Physician
Credentials M.D.
Gender Male
NPI Issued 05/22/2010

CMS Quality Score (MIPS)

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

73.1977
Final Score
Measured-score avg: 83.5
58.7401
Quality
51.919
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Alex Ng, M.D. 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.

University OF Louisville Physicians Inc
Louisville, KY

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Alex Ng, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$503

Largest payer

United Therapeutics Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

Alex Ng, M.D. - brand share 33.0%
Pulmonary Disease Physician average

33% brand-name claims vs 67% generic, on 413 2024 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 2024.

413
Total Claims
$1.6M
Total Drug Cost
76
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
565.267
Total Day Supply
16,274
Brand vs Generic
33% brand / 67% generic
Brand Drug Cost
$1.5M
Generic Drug Cost
$55K
Antibiotic Claims
22

Patient Demographics

Average Patient Age
66.3 years
Avg HCC Risk Score
2.65
Gender Split
55% female / 45% male
Age Distribution
<65: 21, 65-74: 48, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Alex Ng, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Pirfenidone
 63
Ofev
Nintedanib Esylate
55
Mycophenolate Mofetil
 25
Prednisone
 18
Sirolimus
 18
Montelukast Sodium
 16
Albuterol Sulfate Hfa
Albuterol Sulfate
15
Methotrexate
Methotrexate Sodium
15
Acthar
Corticotropin
14
Azathioprine
 12

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

More Pulmonary Disease Physician in KY → All providers in Kentucky → Compare specialties →

Pulmonary Disease Physician Overview

How Alex Ng, M.D. fits within the Pulmonary Disease Physician landscape nationally.

9,647
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,498
Avg Claims per Provider

Alex Ng, M.D.'s 413 claims are below the specialty average of 1,498.

Nationwide Pulmonary Disease Physician peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (73.2 here).

Sarah Knapp 73.2 OH Morium Akthar 73.3 NJ Andrew Berman 73.3 NJ Hala Boktor 73.3 PA

Same NPPES enumeration year (2010)

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

Sunjeet Kaur Cleveland, OH Carleen Spitzer Columbus, OH Andrew Toscano Summit, NJ Nina Sung New York, NY

Nearby Pulmonary Disease Physician Providers in Kentucky

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

One of 125 Pulmonary Disease Physician providers enrolled in Kentucky, 5 are shown here.

Dr. Amadeo Abraham
M.D.
Louisville, KY
Dr. Mateen Ahmed
M.D
Somerset, KY
Dr. Moayad Al-Sona'
MD
Lexington, KY
Dr. Mahmood Alam
MD
Whitesburg, KY
Dr. Nishant Allena
MD
Paducah, KY

Compare Pulmonary Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Alex Ng, M.D.'s specialty? ▼
Alex Ng, M.D. specializes in Pulmonary Disease Physician and practices in Louisville, Kentucky. Credentials: M.D..
How much does Alex Ng, M.D. prescribe under Medicare Part D? ▼
In 2024, Alex Ng, M.D. wrote 413 Medicare Part D claims totaling $1.6M in drug costs for 76 beneficiaries.
What is Alex Ng, M.D.'s Medicare quality score? ▼
Alex Ng, M.D. has a CMS MIPS Final Score of 73.2/100 (Quality: 58.7, Cost: 51.9). 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 Alex Ng, M.D. located? ▼
Alex Ng, M.D. is located at 401 E CHESTNUT ST UNIT 690, Louisville, KY, 40202. Phone: (502) 588-4600.
What is Alex Ng, M.D.'s NPI number? ▼
Alex Ng, M.D.'s National Provider Identifier (NPI) is 1083933675, issued on 05/22/2010.
Does Alex Ng, M.D. prescribe more brand-name or generic drugs? ▼
Alex Ng, M.D.'s prescribing is 33% brand-name and 67% generic drugs by claim count, with $1.5M in brand drug costs.
How many Pulmonary Disease Physician providers are there in the US? ▼
There are 9,647 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,498 Medicare Part D claims per year.
What drugs does Alex Ng, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Alex Ng, M.D.'s most frequently prescribed drugs include Pirfenidone, Ofev, Mycophenolate Mofetil. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alex Ng, M.D. accept Medicare? ▼
Alex Ng, M.D. appears in CMS Medicare data with 413 Part D claims and 76 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alex Ng, M.D.'s credentials? ▼
Alex Ng, M.D.'s NPI is 1083933675 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.