NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1689687873
Verify on CMS → James Liao
Cardiovascular Disease Physician in Chicago, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 24,810 in Cardiovascular 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
449
Medicare Part D claims · 121 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.6/100
▲ 15 pts above national avg 83.1 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
James Liao reported a CMS MIPS final score of 97.6/100 - above the 83.1 national average - and filed 449 Medicare Part D claims in 2023.
- 97.6/100
- MIPS score · +15 vs avg
- 449
- Part D claims, 2023
- 88%
- 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.
James Liao's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 15% higher than 85% 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 James Liao sits
This provider among cardiovascular disease physician peers
Across the 8,753 cardiovascular disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, James Liao writes more Part D claims than 13% of them and scores higher on MIPS quality than 86% - placing this provider in the lower-volume, high-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 cardiovascular disease physician peer from a representative sample of 60; the gold marker is James Liao. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
James Liao 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 James Liao?
High performer (top quartile)Primary specialty
Cardiovascular Disease Physician
Medicare Part D claims
449 85% vs specialty avg
MIPS final score
97.6/100 14.5 pts vs avg
Specialty distribution in Illinois
How Cardiovascular Disease Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
James Liao's 2023 MIPS final score plotted against the Cardiovascular Disease Physician national average
- MIPS Final Score
- 97.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Cardiovascular Disease Physician) - 97.6/100 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).
James Liao appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider at 5841 S MARYLAND AVE, Chicago, IL, 60637, with a listed phone of (888) 824-0200. NPI 1689687873 was issued on 08/15/2006.
Medicare Part D records for calendar year 2023 show 449 prescription claims written by this provider, covering 121 Medicare beneficiaries and totaling roughly $58K in drug spend, split 12% brand-name and 88% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.6/100 for the 2023 performance year (Quality 84.8), compared with the national average of 83.1.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,810 enrolled providers across 54 states and an average of 3,033 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 | 1689687873 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Gender | Male |
| NPI Issued | 08/15/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.6403
Final Score
Avg: 83.1
84.7722
Quality
98.6754
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where James Liao 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.
Banner-University Medical Group
Tucson, AZ
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 - Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 - they are NOT specific to James Liao. To verify James Liao's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
James Liao - brand share 12.0%
Cardiovascular Disease Physician average
12% brand-name claims vs 88% generic, on 449 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.
449
Total Claims
$58K
Total Drug Cost
121
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,102
- Total Day Supply
- 32,579
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $50K
- Generic Drug Cost
- $9K
Patient Demographics
- Average Patient Age
- 73.1 years
- Avg HCC Risk Score
- 1.63
- Gender Split
- 52% female / 48% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What James Liao prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Succinate
Metoprolol Succinate
93 claims
- Atorvastatin Calcium
Atorvastatin Calcium
68 claims
- Amlodipine Besylate
Amlodipine Besylate
47 claims
- Rosuvastatin Calcium 23
Rosuvastatin Calcium
23 claims
- Ezetimibe 20
Ezetimibe
20 claims
- Chlorthalidone 17
Chlorthalidone
17 claims
- Entresto 15
Entresto
15 claims
- Losartan Potassium 15
Losartan Potassium
15 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 93 |
| Atorvastatin Calcium | 68 |
| Amlodipine Besylate | 47 |
| Rosuvastatin Calcium | 23 |
| Ezetimibe | 20 |
| Chlorthalidone | 17 |
| Entresto Sacubitril/Valsartan | 15 |
| Losartan Potassium | 15 |
| Valsartan | 15 |
| Eliquis Apixaban | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How James Liao fits within the Cardiovascular Disease Physician landscape nationally.
24,810
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
James Liao's 449 claims are below the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Liao.
Dr. Nicolaos Abariotis
MD
Chicago, IL
Dr. Tahir Abbasi
M.D.
Hazel Crest, IL
Dr. Rana Abdallah
DNP, APRN, FNP-C
Park Ridge, IL
Dr. Ashraf Abourahma
M.D.
Oak Lawn, IL
Dr. Bruce Abramowitz
M.D.,F.A.C.C.
Oak Lawn, IL
Compare Cardiovascular Disease 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 Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Cardiovascular Disease 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.
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Frequently Asked Questions
What is James Liao's specialty? ▼
James Liao specializes in Cardiovascular Disease Physician and practices in Chicago, Illinois.
How much does James Liao prescribe under Medicare Part D? ▼
In 2023, James Liao wrote 449 Medicare Part D claims totaling $58K in drug costs for 121 beneficiaries.
What is James Liao's Medicare quality score? ▼
James Liao has a CMS MIPS Final Score of 97.6/100 (Quality: 84.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is James Liao located? ▼
James Liao is located at 5841 S MARYLAND AVE, Chicago, IL, 60637. Phone: (888) 824-0200.
What is James Liao's NPI number? ▼
James Liao's National Provider Identifier (NPI) is 1689687873, issued on 08/15/2006.
Does James Liao prescribe more brand-name or generic drugs? ▼
James Liao's prescribing is 12% brand-name and 88% generic drugs by claim count, with $50K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,810 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does James Liao prescribe most often? ▼
Based on 2023 Medicare Part D data, James Liao's most frequently prescribed drugs include Metoprolol Succinate, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Liao accept Medicare? ▼
James Liao appears in CMS Medicare data with 449 Part D claims and 121 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Liao's credentials? ▼
James Liao's NPI is 1689687873. 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.
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.